2. 32
Outokumpu team in Sheffield has been working
closely with partners to deliver the stainless
steel panels involved in the construction
of the Kelpies Project in Falkirk, Scotland.
Stunning stainless steel outdoor artwork erected
in Scotland
The Kelpies are two giant horses’ heads which have been modelled
on the Shire horses which used to tow canal boats carrying goods
and supplies during the Industrial Revolution in the 19th century.
The statues are some 30 metres high; over 300 tonnes of stainless
steel have been used in their manufacture. They form a dramatic
gateway to the Forth & Clyde canal on the East Coast of Scotland
about 37 km north-west of Edinburgh. The artist behind the landmark
is a local Scottish sculptor named Andy Scott.
Miniature Kelpies visited Outokumpu Sheffield
To publicise the statues, 2 smaller (3 meter high) scale models
were made and during our Stainless steel Centenary Celebrations in
Sheffield in June, they visited the Outokumpu site and also Sheffield
University. They attracted a tremendous amount of attention when
they were in Sheffield, and a local brewer even named a new beer
after them!
Custom made panels
Over 900 panels of 316L continuous produced plate from Avesta
and Tornio were processed in Coil & Plate Service Centre in Sheffield.
The panels were cut into various different sizes on lasers in the Plate
Service Centre, having been cut to optimum lengths in the Coil
Service Centre.
The components represented a giant jigsaw puzzle, and were
processed in such a way that different sections of the Kelpies could
be put together at the sub-contractor, and then delivered to the site
in Falkirk for installation. As well as the actual processing, Outokumpu
also project managed the production in such a way that the erection
of the statues could run smoothly and be completed in time and
under budget. The final panels were delivered to site and the final
installation was done end of October.
There is still further work to be done on the site – landscaping,
lighting and building the visitor centre which will be completed
before the official opening in April 2014
Outokumpu has won a bid to provide stainless
steel for the façade on Ping An Finance Center
in Shenzhen, China. The skyscraper’s façade will
be the largest stainless steel façade in the world.
This contract demonstrates Outokumpu’s vast
experience and advanced expertise in stainless
steel. The building is expected to be finished
in April 2016, with a height of 660 meters,
and it is set to be the highest skyscraper
in China and the second highest in the world.
The Ping An Finance Center will cover almost 0.5 square kilometers of building
area. It will house the headquarters of Ping An Life Insurance Company of
China and combine office functions with shops of high-end international and
local brands, fine restaurants and an entertainment complex.
“In our substantive research on the bidders, Outokumpu stood out with its rich
global experience and highly efficient and customized products. Outokumpu’s
vision of ‘a world that lasts forever’ and the mission of ‘creating long lasting
and recyclable advanced materials’ perfectly match our vision of providing
a sustainable landmark to the pioneering spirit of Shenzhen,” said the
spokesperson for Ping An Finance Center.
Teamwork pays off:
The construction project started several years ago around 2009 before
the merger of Outokumpu and the former Inoxum. Both companies were
submitting bids for the project and consequently material from both Nyby
in Sweden and Dillenburg in Germany had been approved for the project
as separate bidders.
“After the creation of the new Outokumpu, the project owner requested only
one bid from the new company. After internal negotiations between the sales
and production teams, it was decided to proceed with material from Dillenburg
due to their vast experience.
Superior choice for façades:
The façade is an important part of the structure of a skyscraper.
The spokesperson from the architectural firm Kohn Pedersen Fox (KPF) in
charge of the design of the structure commented on Outokumpu’s stainless
steel that “The performance of the material is one of the best. It is durable
in the most challenging of conditions delivering ever longer project lifecycles.
The timely technical support and tailored advice will greatly help us along
the construction process as well. ”Stainless steel has become a preferred
material for architectural façades because of its qualities. Its mechanical
properties allow for a thinner façade and it also keeps the building insulated
from the elements as well as sound. Specifically, longevity and corrosion
resistance is necessary to avoid material replacement due to esthetic or
functional failure. The corrosion resistance of stainless steel also helps other
long-life materials such as wood, stone, concrete and masonry to achieve their
potential. Stainless steel’s solar reflective index on common finishes shield
buildings and structures from both summer heat gain and winter heat loss,
reducing energy requirements.
Project Details:
Architecture & design: Kohn Pedersen Fox (KPF).
Product: 1700 tonnes of stainless steel delivered
to the façade of the main tower building. There will
be another bidding arranged for the podium part
of the building which requires some 800 tonnes
of stainless. Tender starts mid-2014.
Material: Austenitic 316L stainless steel sheets
with Linen 25 surface finish in 2.0mm & 0.8 mm.
Project completion: April 2016.
Some things should last forever
China’s highest skyscraper will carry
a facade made of Outokumpu stainless
3. 54
One of the key focuses for Outokumpu is the
oil rich GCC countries, Saudi Arabia, UAE, Qatar,
Oman and Kuwait. The main reason for this is
that these countries are showing a very rapid
growth in infrastructure projects in order to
fulfill the needs of an ever growing population.
It is a transformation from poverty to richness faster than any
other region has experienced in the modern era. These projects
include desalination plants, power plants, roads & bridges, industrial
investments etc. We are also seeing investments in the transportation
sector with new and expanded airports, sea ports, metro’s as well
as a railway linking the countries.
The stainless steel market in the GCC countries is for high quality
primary material only and not secondary. The quality demands
are driven by the large Western consultants, architects and EPC
contractors operating in the region. Since aesthetics is very
important in this region and the atmosphere very corrosive,
stainless steel is a natural choice.
Qatar – New Doha International Airport, NDIA.
Total investment is USD 14.5 billion. We have currently delivered
more than 2000 mt direct and at least 500 mt indirect to this
project, all 316L. We have been successful due to the work which
started back in 2009. We have had several meetings and were
at one time the only approved supplier of stainless steel to NDIA.
Thanks to this we have been able to supply material from 7 mills,
Tornio, Avesta, Degerfors QPE, Degerfors LP, OSTP Storfors, OSTP
Nyby and OSTP Ö-vik as well as Castellone. The plates supplied
Outokumpu stainless steel gives a new look
for the New Street station in Birmingham, UK.
More than 8 000 bright polished, laser-cut
panels of stainless steel, altogether more than
20 000 square meters, will cover the façade
of the station. Outokumpu supplies up to 400
tons of stainless steel for the cladding of the
building.
One of the busiest stations in UK:
Birmingham is one of the busiest train stations in the UK, used by
1,40,000 passengers a day. Originally it was built to accommodate
less than half that number in the 1960s. Network Rail is now
undertaking redevelopment work which will give passengers a
concourse with three and a half times more space, more accessible
platforms with new escalators and lifts. During the work, the concrete
exterior of the building will be cladded with stainless steel.
All Stainless Steel from Outokumpu:
Martifer is managing the entire steelwork project, which was started
in 2010 and takes place in the Birmingham city centre. They
approached Outokumpu, requesting a very brightly polished stainless
steel for the façade of the building. All of the stainless steel in the new
New Street station comes from Outokumpu. Tornio produced three-
millimeter 316 coils which were then cut to length, bright polished
and finished in Sheffield by Outokumpu and its subcontractor, a long-
time partner of Outokumpu who was recommended to the customer
by Outokumpu. Outokumpu’s plate service centre in Sheffield also
advised the station contractors on how to handle stainless steel.
from Degerfors and Castellone were all added - value sales since
they were polished. The material has been used in road barriers,
piping for central cooling systems, cladding for escalators, elevators,
columns etc.
Dubai International Airport – Concourse 3:
Total investment USD 7.5 Billion. Dubai is currently the 4th busiest
airport in the world after London, Paris and Hong Kong. This is a
terminal dedicated to Emirates Airlines and the super jumbo Airbus
A-380 of which they have ordered 90 aircrafts. We have been the only
approved supplier of stainless steel thanks to the hard work carried
out by our sales managers and that has led to more than 600mt
of 316L, #4 & 2D from Tornio, supplied so far for wall cladding etc.
Concourse 4 Dubai International Airport:
When Concourse 3 is ready the expansion continues with Concourse
4. They buy Outokumpu material due to our good reputation of being
a reliable and high quality producer
Deliveries to the hour:
As per Network Rail Project Director. “The stainless steel facade is an
integral element of our project to completely transform Birmingham
New Street station. We are working in and around an original 1960s
structure that has long given a tired and poor impression to the
busiest station outside of London and Britain’s second city. The steel
cladding transforms the dated structure into a stunning, 21st century,
world class building and puts the station on the map as a landmark
in Birmingham, adding to the city’s growing reputation for good
design. The steel cladding completed so far has already created
a buzz around the city and all involved are excited about the future
final completion.
“After a careful market analysis and detailed tendering process,
Martifer selected Outokumpu due to the high-end characteristics
of the product and the confidence instilled in us during the
several technical meetings that preceded the order issue. As the
extreme complexity of this project is only surpassable through
careful management of processes and adequate monitoring of
all operations, Outokumpu proved to be the partner that Martifer
needed for a project of this magnitude and technical requirements.
Outokumpu is technically and in Martifer’s opinion the leading expert
in stainless steel solutions. “Due to the nature of the project and
from the fact that almost no single panel is the same & unique
laser-etched references were used, Outokumpu’s production process,
understanding the best way to streamline and optimize time-
consuming tasks and finishing with just-in-time deliveries showed
the level of cooperation that is required every day to achieve
the common goals.” The first half of the New Street station
has opened up for passengers in April 2013. The station will
be completed in 2015.
Airport project successes in the Middle East New start for the New Street station
4. 76
A glossy stainless steel surface reflects the
adjacent sea on the Seurasaari island of
Helsinki, forming the roof of a newly finished
monument that echoes the mythology of the
Kalevala, Finland’s national epic.
Translating mystery into form
Architect Travis Price explains the use of stainless steel in the
installation, the culmination of a design-build student project inspired
by the Kalevala: “Stainless steel has enabled us to create expressive
architecture that evokes the mystery of the saga and its epic
proportions. Stainless Steel translates mystery into form.”
A place to meet and reflect
The monument in Seurasaari is a small pavilion used as a place
for meeting and reflection. It was built by the students with the help
of local artisans over ten days in late August 2010.
The stainless steel roof of the pavilion is a compound curve
suggestive of a cracking egg, reflecting the Kalevala’s story of the
earth’s creation. “The strength of stainless steel enabled our trick
to create this highly fragile image, allowing the use of very thin
material to build the complex shape,” Price explains. “The real beauty
of stainless steel is the ability to use the least amount of material
combined with the most power.” Another important value with the
design is ecology. “Stainless steel is one of the most ecological
materials – a living example against throwawayism,” Price confirms.
Play of lights
In addition to stainless steel, The Shaman’s Haven of the Kalevala is
built out of wood and glass. The stainless roof “floats” on the wooden
body of the structure, supported by “invisible” glass. Reflective bright-
annealed stainless steel also clads the ceiling, creating an inter-play
of light inside the pavilion.
From the outside, the stainless steel roof reflects the clouds,
and gives an impression that what would be heavy is as light as air.
On the inside, the reflections of the surrounding sea offer the sense
that the ceiling is carried by the waves and melts into the sky.
The roof and ceiling were realized using bright annealed, grade
EN 1.4404 (AISI 316) austenitic stainless steel supplied by
Outokumpu. Most elements were prefabricated to speed
construction, with final assembly and crafting by hand on site.
Stunning in architectural design, BMW Welt
in Munich, Germany, is BMW’s new glass-
and-steel palace for car delivery and brand
experience. The façade is built by Josef Gartner
using Outokumpu’s austenitic stainless steel.
Futuristic showroom
With the launch of BMW Welt, the German car manufacturer has
elevated buying a car from mere transaction to ritualistic experience.
This landmark building, situated on a highly visible site between
Munich’s Olympic Park and the BMW headquarters, is designed to
embrace visitors entirely into the world of BMW. Buyers can not only
meet their new cars as they rotate on turntables, but also immerse
themselves in visions of future mobility. There’s a junior campus
educating children and young people on autos and an event forum
for diverse happenings and excitement. Visitors are served by a series
of restaurants and shops. BMW expects to deliver 45,000 cars and
to receive 800,000 visitors each year.
Form and function
The architectural design speaks volumes about BMW’s values.
The dominating feature is a “double cone” glass-and-steel structure
that supports a cloud-like roof. Here perforated stainless steel panels
act as both aesthetic and functional elements, providing the desired
impressions as well as sun protection. Stainless steel is also the
dominating façade material on the upper sections of the building,
and it is used in indoor cladding. The contracting company
Josef Gartner GmbH of Germany selected Outokumpu as the
stainless steel supplier based on long-term good relations and
Outokumpu’s long experience with architecture.
Trusted partner
Outokumpu’s supply for BMW Welt comprised approximately 500 tons
of stainless coil and sheet. The material for the external sections was
austenitic EN 1.4404 (ASTM 316L), with the milder grade EN 1.4301
(ASTM 304) chosen for indoor cladding. All material was delivered
with a 2B surface finish, shotblasted prior to fabrication by
Josef Gartner. A project manager from the company commented:
“We were absolutely satisfied with Outokumpu’s performance.
Outokumpu met our expectations. We received the material
in the right condition, and at the right place and time.”
Project Details
Building owner: BMW AG, Munich, Germany
Architectural design: Coop Himmelb (l) au, Vienna
Structural engineering: Bollinger + Grohmann, Schmitt,
Stumpf, Frühauf + Partner
Curtain wall (façade, roof structures):
Josef Gartner GmbH, Gundelfingen, Germany (a subsidiary
of Permasteelisa S.p.A.)
Stainless Steel forms an architectural
installation of poetic dimension
Stainless shines on architectural
masterpiece
Project Details
Kalevalakehto/The Sharmans Haven of the Kalevala
Design: U.S. and Finnish Students – Catholic University
of Amercia and Aalto University
Architect: Travis Price
Materials
• 316 stainless steel BA 0.3mm tube and plate
• Dedicated August 26 2010
5. 98
Tall, shiny and handsome
Burj Khalifa uses Outokump Stainless Steel
The Burj Khalifa Bin Zayed, known for short as the Burj Tower was opened
to the world on January 4, 2010 in Dubai.
The façade of the 828metre high tallest building in the world features
Outokumpu Stainless as part of its advanced cladding system
and is also particularly resilient – stainless steel resists the environmental
corrosive effects because of its simultaneous proximity to sea and desert
and the temperature fluctuations this causes.
In addition to rigorous heat testing with a jet engine, the building skin
was subject to extensive wind tunnel tests. And the surface was treated
to economise on weight and make the façade non-reflective in order
not to confuse the pilots on their approach to the airport in Dubai.
Stainless was also used extensively in the interiors in combination
with stone and glass.
Linking key areas
A major urban development is underway in Singapore’s Marina Bay area.
An integrated resort is going up on one side of the Bay comprising a
business and financial center, high-end apartments and waterfront gardens.
The opposite side of the Bay will see a giant observation wheel named
Singapore Flyer. In addition, a landmark pedestrian bridge, part of a larger
bridge development project, spans the bay and links key destinations.
It provides the first pedestrian access around Marina Bay.
Spectacular views, illuminating design
The bridge is composed of two spiraling tubular stainless steel members,
resembling the structure of DNA. This unique stainless double-helix structure
takes bridge architecture and engineering to entirely new directions.
According to the designers, the DNA-like structure symbolizes “life and
continuity, renewal and growth” and as such underscores Singapore’s
international image and goals for Marina Bay. The bridge will also allow for
spectacular views of the city skyline, both from the deck and five viewing
platforms, with the stainless steel surfaces reflecting a series of illuminating
lights programmed to enhance the design.
Duplex yet again
The bridge engineers selected high-strength duplex as the appropriate
stainless grade for the double-helix and support structures. In the hot and
humid, maritime climate of Singapore, this highly corrosion resistant grade
ensures low maintenance costs and continued good appearance during a
service life of at least 100 years. The high strength of the grade also enables
the development of a cost-efficient design. The contract follows a series of
demanding bridge projects worldwide for which Outokumpu has supplied
duplex stainless products in several different grades. Outokumpu helps bridge
designers and engineers to realize one cutting-edge idea after another.
An anchor for THE Media Harbor
Frank Gehry’s Neue Zollhof in Düsseldorf’s Media
Harbor draws extensively on lessons learned from
the Guggenheim Museum in Bilbao. Constructed
in 1999, the structures of this three-building complex
have leaning façades and embrace curved distortions
of space. One building has outside walls of polished
stainless steel that reflect the red brick and white
plaster of its counterparts. The building represents
one of the first building projects in which stainless
steel by Outokumpu was consistently used as a
design element for the outer façade. The postmodern
cluster has become an anchor for Düsseldorf’s new
media industry.
The Marina Bay Pedestrian Bridge
in Singapore is a stunning work of
architectural and engineering design.
The bridge links key development
sites and while being an attraction
in itself, symbolizing Singapore’s
aspirations as a biomedical hub.
Project Details
• Project owner: Urban Redevelopment Authority
(URA) / Land Transport Authority (LTA), Singapore
• Consultants: COX Group Pte Ltd (Australia), ARUP
Pte Ltd (Australia) and Architects 61 (Singapore)
• Main contractor: Sato Kogyo (S) Pte Ltd
• Fabricator: TTJ Design and Engineering, Singapore
Materials
• Grade EN 1.4462 (Outokumpu 2205) high-strength
duplex stainless steel
• Plates for structural sections: thickness 8-60 mm,
1D surface
• Pipes: wall thickness 5-16 mm, outer diameter
114.3-508.3 mm
Outokumpu stainless used
in Marina Bay bridge, Singapore
6. 1110
The upper sections of the Stonecutters Bridge
towers are formed from a composite structural
section of reinforced concrete and duplex
stainless steel plate from Outokumpu.
The bridge is an excellent showcase of
the merits of duplex grades in structural
applications.
Strength and aesthetics combined
Stonecutters is one of the biggest road bridges in the world and one
of only two cable-stayed bridges with a span of more than one
kilometre. Dominating Hong Kong’s skyline, the bridge echoes
Hong Kong’s image as one of the most cosmopolitan and vibrant
cities in Asia. The towers are in reinforced concrete up to level 175m
and, for the top 118m, they are in a composite section consisting of
an inner concrete core and stainless steel on the outside, connected
by shear studs. The heavy composite structure necessary stiffness
and damping for the stay cables, as well as a striking aesthetic effect.
Long bridge life, no need for maintenance
The owner requested a 120-year design life for the bridge. Arup,
finding that carbon steel did not provide sufficient durability,
concluded that the appropriate material was high-strength duplex
stainless steel. Duplex stainless steels are today preferred for a
broad range of structural applications owing to their high strength
– close to double that of austenitic grades. The hot, humid and
maritime environment of Hong Kong also required a material with high
corrosion resistance, provided by the duplex grade to render the tower
tops maintenance-free, a major consideration for the bridge operators
because of the difficulty of accessing these sections.
Sicklauddsbron (Bridge Apaté), a stainless
steel bridge that spans the Sickla Canal
in the Hammarby Sjöstad area of Stockholm,
has received the prestigious European Steel
Design Award.
The bridge’s load-bearing sections have been manufactured using
high-strength duplex stainless steel hot rolled plate from Avesta
Polarit Hot Rolled Plate in Degerfors. The 25mm gauge plates were
first sent to Avesta Polarit PSC Nordic, also based in Degerfors,
to undergo further processing, such as water cutting and bending.
The joint preparation and welding preparations were also handled
by PSC Nordic. The finished components for the bridge were then
put together by Stålmonteringar AB Stålab, located in Trollhättan.
The award ceremony took place in Lucerne in Switzerland on
17 September. The prize is awarded every other year to the most
innovative steel constructions in Europe. The award was set up
in order to encourage the creative use of steel in architecture and
structural design. Bridge Apaté was nominated for the European
Steel Design Award by the Swedish Institute of Steel Construction
(Stålbyggnadsinstitutet) after receiving national recognition in the
form of the Steel Design Award (Stålbyggnadspriset) 2003.
At the institute’s annual meeting, Bridge Apaté was awarded the
Swedish Steel Design Award 2003 for the most innovative steel
construction in Sweden in the past three years. The achievement
was won in the face of some stiff competition from the COOP Arena
(formerly the Dolphin) in Luleå and Pier F at Arlanda Airport.
The Steel Design Award was founded to encourage the use of steel in
constructions and to generate new ideas and inspirational solutions.
The prize was awarded for the first time this year. The award
ceremony is due to take place in Gothenburg on Steel Construction
Day, 16 October. Avesta Polarit’s Hot Rolled Plate business unit in
Degerfors is the world’s largest producer of stainless steel hot rolled
individual plate. AvestaPolarit PSC Nordic in Degerfors is the Nordic
region’s leading plate service centre forplate processing. PSC Nordic
specialises in value-added processes such as water cutting, plasma
cutting bending.
Full support from Outokumpu
Outokumpu completed the supply of polished plates with 1K surface
in 2006. Final surface finishing was carried out by a fabricator
in China. Outokumpu followed up with technical support during
construction. Outokumpu also supplied duplex stainless steel
tubes and plates for the anchoring boxes of the bridge’s cables.
“Stonecutters Bridge is further proof of our skills and the capabilities
of our international team to deliver for the most demanding structural
projects in the world,” says Anders Finnås, Outokumpu’s Segment
Sales Manager for architectural and structural applications.
Project Details
• 1,596m-long dual 3-lane high-level cable-stayed bridge,
with a clear span of 1,018m
• Commissioned on December 20th, 2009
• High-strength duplex 1.4462 (Outokumpu 2205)
• Polished plate 1K
In cooperation with
• Design consultant: Group led by Ove Arup and Partners
Hong Kong Limited with COWI A/S
as main sub-consultant
• Construction supervision: Ove Arup and Partners Hong Kong
Limited
• Main contractor: Maeda-Hitachi-Yokogawa-Hsin Chong Joint
Venture (MHYH JV)
• Fabrication of duplex plate: Subcontractor in China
Project Details
• Apate Bridge, Stockholm.
Pedestrain Bridge 2002
Materials
• High strength duplex stainless steel 2205
• Supplied prefabricated segments at Degerfors Mill
Duplex stainless in Stonecutters Bridge,
Hong Kong
Stainless steel bridge receives
international award
7. 1312
Mead’s Reach Bridge, Bristol UK Outokumpu stainless used
in Siena Bridge, Italy
Outokumpu’s duplex stainless steel is used to
build the Mead’s Reach Bridge in Bristol, UK.
As part of an urban development project, the harbour at Bristol’s
Temple Quay has been newly connected to the city centre by an
architecturally exciting, all-stainless steel bridge for pedestrians
and cyclists.
The inspiration:
The Mead’s Reach Bridge is the result of collaboration between
several specialists in stainless steel. It was designed by London-
based Niall McLaughlin Architects alongside artist, Martin Richman.
The steel bridge was then engineered and fabricated by m-tec
in the UK. It was made from duplex 2205 stainless steel plate
sourced from Outokumpu.
The steel bridge is a 55-metre arc across the river. It makes inventive
use of stainless steel, with stainless steel plates forming the steel
bridge deck and perforated flanks to allow interplay of light and
reflection off the water. Its purpose is to underscore the relationship
of the structure with its surroundings.
The practicalities:
The engineering, fabrication and construction of the steel bridge
were all equally innovative. Engineered by m-tec’s Design Team,
the steel bridge was fabricated in eight sections at the company’s
plant in Darwen, Lancashire. The sections were then welded together
and polished on site in Bristol. It took one of the largest cranes in
Europe to lift the 75-tonne steel bridge into place in August 2009.
m-tec works with public artists, architects and urban renewal
specialists to turn stainless steel into artwork and structures that
Siena, Italy is home to the world’s first major
footbridge built from Outokumpu’s LDX 2101®
duplex stainless steel.
Thinking the future:
The project is the result of successful interplay between an
enlightened design engineer, farsighted community leaders and
Outokumpu. The lead designer for the bridge, Mr Pierangelo Pistoletti,
speaks about two passions that he harbors: one is for bridges,
and the other is for stainless steel. He is fascinated about bridges
because of their challenging structural complexity and about stainless
steel because of the superior solutions that the material presents to
the structural challenges.
Stainless all the way:
“Mild steel poses a risk for critical structures, because without regular
coating the structures can be attacked by serious corrosion, leading
to material fatigue and even to a risk of collapse. Regular coating
to fight corrosion is also costly,” Mr Pistoletti explains. When the City
of Siena in Tuscany commissioned him to design a footbridge over
a busy motorway in the suburb of Ruffolo, he and his engineering firm
SETECO went to work on an all-stainless steel, cable-stayed bridge.
The process took a new turn when Outokumpu’s Italian marketing
arm introduced SETECO to a relatively new material: LDX 2101®
duplex stainless steel developed by Outokumpu and produced
by no other stainless steel maker.
Lean duplex brings savings:
Outokumpu LDX 2101®
is a lean duplex grade that provides the
excellent properties of duplex stainless steels with a nickel content
of just 1.5%. The grade is ideal for load-bearing structures where
help to re-design and re-define space. With the Mead’s Reach Bridge,
m-tec expands its portfolio to stainless steel bridges.
Duplex 2205 was chosen by m-tec to provide the necessary corrosion
resistance, because of Bristol’s maritime climate. The duplex grade
was also chosen because of its high strength. The company says that
they tend to favor duplex 2205 in most of their projects.
Why Outokumpu?
m-tec chose Outokumpu as the duplex plate supplier based on their
experience working with Outokumpu over a number of years. An m-tec
representative cites Outokumpu’s in-depth product knowledge and
excellent service as reasons for working with them.
Project Details
• Fabricator: m-tec, the architectural division
of WEC Group Ltd
• Architectural design: Niall McLaughlin Architects
Martin Richman
• Structural design: Price Myers Consulting Engineers
• Contractor: Dean Dyball Civil Engineering
Materials
• Mead’s Reach Bridge: A stressed skin arc of stainless steel,
55m long.
• 75 tonnes, built in 8 sections from 2205 duplex
stainless steel.
moderate corrosion resistance is adequate such as in Siena, an
inland city with low pollution levels. Mr Pistoletti was persuaded
by the merits of the material and specified LDX 2101®
for the
towers and roadway of the bridge. Siena city representatives
were no less impressed, attracted to the long, maintenance-free
life and unfading good looks that the material promised. The high
strength of LDX 2101®
enabled Mr Pistoletti to design a light-weight
structure compared to traditional bridge designs.
Project Details
Type: cable-stayed, 60 m long
Owner: City of Siena
Architect: Pierangelo Pistoletti, SETECO
Structural engineering: SETECO
Contractor: MMI
Materials
Outokumpu lean duplex grade LDX 2101®
Plates processed
at service center in Italy Surface finish: 1D.
8. 1514
A milestone for footbridges in the U.S. Duplex for Europe’s longest pedestrian
and cycling bridge
Outokumpu’s duplex stainless steel has been
chosen for a key structural element in an iconic
pedestrian bridge in San Diego, California.
The bridge is slated to stand as a beacon for
the nation’s bridge designers and engineers
in the use of stainless.
Designed to last more than a 100 years:
The new landmark footbridge will provide pedestrian access between
the city’s spectacular Balboa Park and the picturesque natural harbor
of San Diego Bay, spanning six railroad tracks and several lanes of
vehicle traffic. Designed to serve over 100 years, the bridge is built
with a material that enables reliable, maintenance-free service over
the design life in the maritime Pacific climate: duplex stainless steel
of grade Outokumpu 2205. “Because the bridge is close to the San
Diego Bay, high resistance to corrosion was required,” says Dan
Fitzwilliam, a senior bridge engineer at the lead design engineering
firm T.Y. Lin International.
Aesthetics and strength:
Another key reason for the material choice was aesthetics.
“We wanted something with a high-quality finish because pedestrians
would be interacting with the bridge at a much slower pace than
one would passing under in a vehicle,” says Dan Fitzwilliam.
Also contributing was the characteristic strength of duplex.
“The stainless steel had a load carrying capacity, too,” he continues,
“so the stainless steel had to have high strength.” Duplex stainless
steel features almost twice the strength compared to austenitic
stainless steel.
Three 60-metre long bridge arches are key
to ensuring the eye-catching appearance of a
pedestrian and cycling bridge in Sölvesborg,
in Sweden. The arches are being built from
Outokumpu duplex stainless steel.
Lifecycle advantage with duplex
The key reason for choosing the material for the bridge arches was
the overall life-cycle costs associated with the structure. “We can
avoid repainting costs associated with the bridge arches and rails
every 15th year. Ultimately this means approximately a 500 000 euro
calculative saving in maintenance costs with 2012 price levels”, says
Ronny Södergren, managing director of Stål Rörmontage AB, the
company responsible for the construction of the bridge.
No impact on nearby bird conservation area
Because stainless steel, contrary to carbon steel, doesn’t require
surface treatment and only minor maintenance, the benefits of
using duplex are significant also from the environmental perspective.
The Sölvesborg community can now avoid negative impacts
associated with epoxy painting residue and sand blasting on
a nearby bird conservation area.
Stronger design, stable pricing
The high strength of the chosen duplex stainless steel grade
enabled a lighter design. Less material needed for the bridge arches
ultimately means lower environmental impact of the whole structure.
An additional benefit is that the low nickel content of duplex ensures
more stable prices, given that the volatility of standard austenitic
prices can be up to ten times higher due to fluctuations in the price
of nickel.
Recommended by consultant and fabricator:
Outokumpu was found by the steel fabricator, with a role played also
by the consulting company. “We weren’t aware of 2205 previously.
When we started to list the criteria for the San Diego bridge, we
contacted TMR Consulting to aide us in the search. They were
instrumental in the final material selection.” TMR Consulting is a
metallurgy consulting firm based in Pittsburgh, PA, which regularly
works with Outokumpu in a consultant role.
Project Details
Summary: A single-cable self-anchored suspension bridge
with a 108 m long main span and featuring a 40 m tall
concrete pylon
Owner: City of San Diego
Design engineer: T.Y. Lin International, San Diego, California
Architect: Safdie Rabines Architects, California Contractor:
Reyes Corporation, California
Stainless steel fabricator: AMECO USA Metal Fabricating
Solutions, Cleveland, Ohio
Materials
Duplex stainless steel Outokumpu 2205 (EN 1.4462) plate
fabricated into pipe.
Benefits include:
• Aesthetic appearance
• Strength
• Easy maintenance
More bridge for the money spent
The bridge, which will connect the center of Sölvesborg with a new
district called Ljungaviken Listerlandet, “Simply put, the customer
gets ‘more bridge for the money spent’ with duplex steel”, says
Anders Finnås who is responsible for the building and construction
segment at Outokumpu in Degerfors, Sweden. “Better price stability
together with the effective use of the material provides overall a
very cost-efficient and attractive design.”
Project Details
Project: 756-meter bridge in Sölvesborg,Sweden
Fabricator: Stål Rörmontage AB
Materials
• 150 tonnes of Outokumpu duplex LDX 2101®
stainless steel
• 3 arches, 60m span carrying the higher deck section
• Arches made from duplex stainless steel plate
• Railings and deck support structure also LDX 2101®
9. 1716
The Project Engineering team tested the stainless steel samples from
the 200 tons lot supplied by Outokumpu in different grades (1.4301,
1.4304 and 1.4162). They found the performance to be exceeding
their satisfactory level.
Outokumpu’s persistent approach, technical support on specifications
and guidelines initially, submission of samples and test results,
timely updates and inputs in the decision making phase, organizing
customer plant visit together with and Outokumpu’s Brand value
helped in bagging the order of about 200 tons.
After the order and supply Outokumpu India offered guidance at
the time of the actual field use of the product to win their respect
and goodwill.
It was a very happy moment to witness the structure during
inauguration with a fervent hope that someone in thirtieth century
will thank Outokumpu for building a stong everlasting foundation.
Creating a world that lasts forever.
100 years life expected for BAPS
Swaminarayan Mandir in Kolkata, India
BAPS, a charitable trust having NGO
recognition, has taken various steps to serve
the society. Their Akshardham Temple in New
Delhi is one of their outstanding contributions
to society. In continuation to their noble work,
they decided to construct a similar structure
in Kolkata on the banks of River Ganges.
A decision was taken to build the temple in
1987 and the drive for donation collection
began for the noble cause.
The spiritual guru wanted the Temple to have a life of over 1000
years as a source of inspiration for future generations. The Structural
Engineers were assigned the task to choose the suitable materials
from stone to steel. Material sciences dictated the choice for
stainless steel Reinforcing Bars for the Pile Foundation in view of
marshy land. Besides the foundation in reinforced concrete, the entire
structure is made out of special stones from Rajasthan, India.
Stainless steel rebar is an insurance against corrosion and concrete
spalling. To ensure long life spans, stainless rebar has been used
successfully in highly demanding structures, including bridges and
other road infrastructure, which show no signs of deterioration after
many decades of service in harsh seaside environments.
All the technical inputs shared by Outokumpu India representatives
as well as their visit to our Sheffield plant and interactions with
mill technical personnel helped them make the final choice. Mr. B.
B. Choudhary, Structural Engineer decided to use Stainless Steel
Reinforcement for the Foundation to achieve the expected life
and his suggestion to the Temple Committee was well received.
The Gateway Upgrade Project, to duplicate a
motorway bridge across the Brisbane River in
Australia’s Queensland, will use duplex LDX
2101®
stainless steel reinforcement bar.
Stainless rebar extends life to 300 years
South-east Queensland is the fastest growing region in Australia.
To meet the region’s future demands and to secure its economic
success, Brisbane’s six-lane Gateway Bridge has been duplicated
as part of the Gateway Upgrade Project. This is the largest road and
bridge project in Queensland’s history. Looking to the future, the new
bridge has a design life of 300 years. To ensure such a long lifespan,
the bridge design specifies stainless steel reinforcement bar in the
most critical bridge structures: the splash zones of the two main
river pylons.
First ever use of LDX 2101®
for rebar
Based on state-of-the-art knowledge of stainless steel rebar, the joint
venture was looking for a product in the austenitic grade EN 1.4404
(ASTM 316L). Outokumpu had a better idea and suggested using
duplex stainless steel of grade LDX 2101®
instead. The corrosion
resistance of this proprietary Outokumpu duplex grade is close to that
of 1.4404. However, LDX 2101®
does the task with very low nickel,
making the duplex grade highly competitive to austenitic grades.
LDX 2101®
had never been used in rebar before. So the bridge
engineers had the question on the required corrosion resistance
for the extended period of time? Outokumpu’s in-house research
metallurgists had made extensive corrosion tests on LDX 2101®
rebar
in the event that concrete is permeated by seawater. The results
prove that LDX 2101®
withstands such a high corrosion environment.
As a result of the research and tests, the second Gateway Bridge
was constructed with LDX 2101®
rebar. Outokumpu has supplied
about 100 tons by 2008. The Gateway Upgrade Project is opened
to use by 2011.
Pioneering use of duplex LDX 2101®
in concrete reinforcement
Project Details
Structural Engineer: B.B. Choudhary
Inauguration: 31 January to 2 February 2014
Materials
• 200 tonne of 304, 304L and LDX 2101®
Project Details
Design and Construction: Leighton AbiGroup joint venture
Design life: 300 years
Materials
• LDX 2101®
high strength stainless steel re-bar
10. 1918
Project Details
• Phra Mahathat Chedi: Design and construction of a Chedi
at a Buddhist temple in Thailand using duplex LDX 2101®
stainless steel reinforcement bar from Outokumpu
• Project duration: 2010-2012
• Owner: Phra Athikan Akaradej Thirachitto Wat Boonyawad,
Chonburi
• Consultants and Structural Design: Infra Technology
Service Co., Ltd
• Main contractor: Siphaya Construction Company Limited
Materials
• LDX 2101®
high strength stainless steel re-bar
A Buddhist temple lays its concrete foundation
with lean duplex stainless steel reinforcement
bar from Outokumpu.
Built to last more than a thousand years
Less than two hours’ drive from the teeming tourist beaches
of Pattaya in Thailand, a largely undeveloped hillside in Chounbri
province conceals a very different site – a sacred place – home
to a Buddhist temple.
Founded some years ago, the temple has been operating in
makeshift facilities. Now the local community has undertaken
a project to build the temple with the traditional structures of
a Buddhist shrine, complete with a Chedi (also known as pagoda)
and the main hall Phra Ubosot.
A Chedi is a bell-shaped structure containing Buddhist relics. Original
Chedis are thought to be places that shield the remains of Buddha.
A Chedi is a symbol of enlightenment, and it is the oldest and most
prevalent form of Buddhist architecture. A Phra Ubosot is the holiest
prayer room of a Buddhist temple.
The temple committee, in charge of the new development, wants
to see that the project will produce a sacred place that will fulfill
the spiritual needs of a great many generations to come. Their very
ambitious goal is to have the structure of the Chedi serve more
than one thousand years.
Reinforced with stainless steel
The millennial project’s construction consultant has advised the
committee to use stainless steel reinforcing bar (SSR for short) in the
most critical concrete structures – most particularly in the groundwork
and the shear key (the section where the body of the building is
anchored) of the Chedi.
Conventionally rebar is fabricated from carbon steel. Carbon steel
rebar relies on the high alkalinity of concrete for its protection from
corrosion. In long-life structures such as temples and monuments,
the high alkalinity is unlikely to be retained, and the carbon steel
will corrode. The corrosion products will cause the concrete to burst
(known as spalling) resulting in the ultimate failure of the structure.
Insurance against corrosion
Stainless steel rebar is an insurance against corrosion and spalled
concrete. To ensure long life spans, stainless rebar has been used
successfully in highly demanding structures, including bridges and
other road infrastructure, which show no signs of deterioration after
decades of service.
On the recommendation of their stainless specialist, the temple
project’s engineering team first considered using either one of two
designations of stainless for the rebar: conventional austenitic EN
1.4301/1.4307 (ASTM 304/304L), suitable for mildly corrosive
environments, and duplex 2304. The latter designation features
both high mechanical strength, typical of all duplex stainless steels,
and high corrosion resistance.
Outokumpu steps in
Also on the recommendation of their stainless specialist, the temple
engineering team contacted Outokumpu for quotes and information
on both stainless steel designations.
At this stage, Outokumpu’s specialists stepped into the process.
Outokumpu wanted to make sure that the project would have access
to all relevant information about stainless steel designations and that
the project could, as a result, choose the best one for the application.
In April 2010, groundwork commenced at the temple site with
Outokumpu’s LDX 2101®
rebar.
Value added from Outokumpu
Suwimon Kaewkanokwichit of Outokumpu’s representative office in
Thailand elaborates on some of the benefits for the customer from
collaborating with Outokumpu: “In addition to securing an optimal
product, the project has received excellent support from Outokumpu.”
The Outokumpu business units involved in the project from the very
beginning have been Rod Mill and Bar Finishing in Sheffield, UK.
“The teams at these units have worked hard to be flexible in
deliveries to meet the needs of the project,” Suwimon affirms.
Outokumpu’s Singapore-based specialist in stainless steel rebar
and other products for the construction industry, Nick Tan, adds
that Outokumpu’s services have played a major role in the success
of the project.
“We have worked very fast as a team,” Nick says. “We have
continuously engaged with the customer in order to fully understand
their needs, and we have done our best to meet those needs,
including air-cargo of samples for material testing, cut-to-length
service and close follow-up.”
22,300 pieces
Outokumpu’s Rebar Finishing team managed the extremely
complex delivery, with more than 90 different diameter and length
combinations and numbers in excess of 22,300 pieces, able to meet
the customer’s request for a very tight length tolerance. In addition,
the team managed a tight delivery schedule, achieving one-hundred
percent on-time delivery.
Duplex stainless steel reinforcement bar for
Buddhist temple in Thailand
11. Head Office, Outokumpu Pty Ltd
134–136 Fitzgerald Road, North Laverton, 3026
Victoria, Australia
Telephone +61 (0)3 9369 3344
Facsimile +61 (0)3 9360 9355
email ausales@outokumpu.com
www.outokumpu.com/australia