Chung Hung Steel

Chung Hung’s predecessor was Yieh Loong Enterprise Co., Ltd. and officially
renamed on July 14, 2004) was established in Chiao Tou Hsieng of Kaohsiung
County in September 1983, and the current paid-in capital is NT$14.35 billion. In
the early 1987, it accomplished the establishment of the Cold Rolling Department
with the annual capacity of 450 thousand tons, which produces the cold rolled coil
and tempered coil with the thickness of 0.15~2.0mm and width of 900~1225mm.
In the mid-1987, it established the Pipe & Tube Department with the annual
capacity of 72 thousand tons in Da Fa Industrial District, which produces the API
and structural pipes. In April 1997, it accomplished the establishment of the Hot
Rolling Department with the annual capacity of 2.4 million tons, which produces
the hot rolled coil with the thickness of 1.20~12.7mm.
In terms of the vertical integration of upstream and downstream domestic steel
industry, Chung Hung Steel Corporation formed the strategic alliance with China
Steel Corporation (“CSC”) in the year-end of 1999. In 2000, it officially became a
member of CSC Group.

Production
Hot Rolling Exclusivity
The Hot Rolling Department of Chung Hung commenced its construction on May
22nd, 1995, and was completed in less than two years with the first coil being
produced on April 28, 1997. We set a new record then for the shortest
construction time of similar plants in the steel industry. This mill is equipped with
the most cutting-edge facilities supplied by the first-class suppliers in the world,
Ishikawajima-Harima Heavy Industries and Chugai Ro of Japan. It operates with
the accurate automatic control system, which has the characteristics of elaborate
high production capacity and low costs with short manufacturing process, uniform
temperature in slab heating, energy conservation, and pollution prevention
facilities, so as to precisely produce the sizes required by customers and hot rolled
coils with high quality. The hot rolling line is 320 meters long, whose main
equipments consist of two reheating furnaces, one reversing roughing mill, one
coil box and one 4-high 6 stand finishing mill. Its annual designed production
capacity is 2.4 million tons, which may produce all kinds of hot rolled bands and
hot rolled temper grade coils with excellent quality and with the thickness of
1.2~12.7mm and width of 900~1560 mm.

Moreover, the Skin Pass Mill is supplied by UBE Industries of Japan; apart from
tempering, it is capable of processing the leveling and dividing of coils to the
thinnest extent as 1.2 mm in thickness with annual design production capacity of
1.2 million tons.
This Hot Rolling Department has been respectively accredited with ISO 9001,
14001 and OHSAS 18001 certificates in 2002, and hot rolled coils produced
accordingly are materials widely applied for producing hardware, transportation
container, automobile body plates, home appliances, structural pipes, as well as
construction pipes in addition to producing cold rolled coils and galvanized
materials.

1. Walking beam type as the pushing conveyance device
2. 10 zones of computer auto-temperature control to get more
uniform temperature in slabs
3. Offset skid design for reducing the skid mark in slabs to increase the
quality of slabs
REHEATING FURNACE

1. High pressure scale breaker at entrance and exit to increase the
surface quality of products
2. Continuous reversing 4 high rolling mill with screw down and
balance oil cylinder mechanism for rolling stability
3. Equipped with edger and AWC width auto control system for more
precise rolling width than the tradition fashion
4. Semi-auto work roller change equipment for reducing roller
changing time so as to increase the production capacity
5. Auto lubrication system for the transmit equipment to reduce
maintenance time so as to increase the utilization of the equipment
ROUGHING MILL

1. Saving total space of the hot rolling production lines and the costs of
establishing equipments
2. Keeping the coil temperature uniform and reducing cold mark
through coiling
3. Roughing mill and finishing mill can work at the same time to reduce
pacing time
4. Optimum Cutting Control System to reduce cutting loss of crop so as
to increase the output rate
COIL BOX

1. 4 high reversing mill ´ 6 stands
2. With work rolls side shift mechanisms and bending mechanisms for
more feasibility in production scheduling and stability of crown of coils
3. Use AGC Auto thickness and shape control system to control the
thickness of steel strips more precisely and secure the thickness
required by customers
4. Available thickness of 1.2~12.7mm (the manufacturing process of
18mm having been independently developed)
5. Automatically rapid work rolls change equipment adopted so as to
reduce the time of changing rollers
FINISHING MILL

1. to reach proper temperature prior to coiling
2. auto temperature control equipped in the 11th bank, trimming
control on No.4 and No. 11 banks, so as to promptly fix the
temperature deviation
3. the cooling system is divided into 4 regions to control and the side
spray system is equipped in each region
4. Cooling Down Capability：300℃
LAMINAR FLOW COOLING SYSTEM

1. Equipped with auto jumping control system, utilizes the jumping
control of three wrapper rolls for achieving the down coiling
function
2. Equipped with auto banding system and auto numbering marking
control system
3. Computer auto track of coils from coiling to conveying
DOWN COIL

1. 4 high mill with Push-UP control system
2. Center position control function to secure flat gesture of coils
3. With leveler mechanism and slitting function
SKIN PASS MILL

Product introduction
Hot rolled coils, a.k.a. black skin coils, can be suitable for re-rolling, slitting,
and piping, and have a wide range of applications. The annual design
production capacity of Chung Hung’s hot strip mill is 2.4 million tons, which
may produce hot rolled bands and hot rolled tempered coils conforming to all
kinds of specifications with the thickness of 1.2~12.7mm and width of
900~1560 mm. Hot rolled products are made from slabs which are reheated in
the hot strip mill at proper temperature, rolled in the roughing mill, through
the coil box, rolled in the finishing mill, cooled in the laminar flow cooling
system, and eventually down coiled into hot rolled bands in the down coil. The
hot bands will be conveyed to the skin pass mill for pertinently tempering,
crop shearing, weighing, packaging and marking to be further processed into
tempered coils. All hot rolled products of Chung Hung have been accredited
with ISO 9001 for quality management system certificate, ISO 14001 for
management system certificate, and OHSAS 18001 for occupational health and
safety management system certificate.

Hot rolled coils have the characteristics that include adequate strength, well
toughness, good weld ability, and easy formability, which can be used not only
as the main materials in producing cold rolled coils, but also widely applied for
hardware, automobile body plates, home appliances, structural pipes,
construction pipes, and construction steels for structure. Specifications and
main applications of hot rolled products are listed in the following table:

Cold Rolling Exclusivity
The Cold Rolling Department is established in 1987 whose main production equipments
are the pickling line with 68 meters long, 6Hi UC-Mill, batch annealing, and tempered
equipments. Its annual design production capacity is 450 thousand tons, which may
produce cold rolled full hard plates and tempered coils with the thickness of
0.15~2.35mm and width of 850~1250mm. Due to the long-term dedication to the
promotion of technology and quality, products have reached the first-class standards. In
September 1994, it has became the fist domestic Cold Rolling Department accredited
with ISO 9002 certificate, and has made successfully conversion in October 2002 and
was accredited with ISO 9001 certificate of the 2000 version; moreover, it is also
accredited with ISO 14001 and OHSAS 18001 certificates.
The roughness of this mill’s cold rolled products has dull finish and bright finish. Due to
the excellent mechanic properties and easy processing with the merits of average
thickness, flat surface, and easy forming, such products elaborate the steel materials to
the utmost extent. This mill’s cold rolled products are widely welcome because of their
attributes of being economical, durable, and easy forming. They are suitable materials
for stationery (staples and hole punchers), home appliances (oven and toaster), office
furniture (information cabinets, tables, and chairs), sports equipment (treadmill and
fitness appliances), construction materials (wave board and iron winding door) and the
currently widely popular computer cases, which are all formed from cold rolled plates
and topped with galvanization and paint coating.

Pickling Line
Main Function：De-scale, trim to the desired width
Range of Thickness：1.3mm~4.5mm
Range of Width：870mm~1,320mm
Annual Capacity：450,000 Tons
Production facilities
DAVY Rolling Machine (Cold Rolling Department No.1)
Main Function：Rolled to the thickness as ordered by customers (4Hi UC-Mill)
Speed of Line：360mpm Max

UC (Cold Rolling Department No.2)
Main Function：Rolled to the thickness as ordered by customers (6Hi UC-Mill)
Speed of Line：1,200mpm Max
Electrolytic Degreasing Line
Main Function：Electrolytic cleaning
Annual Capacity：400,000Tons

Annealing Line No.1
Base：21 stands
Main Function：Annealing
External diameter of coils：1,740mm Max
Height of Stack：3,940mm Max
Annual Capacity：220,000Tons
Annealing Line No.2
Base：12 stands
Main function and Feature：
Main Function：Annealing
External diameter of coils：2,000mm Max
Height of Stack：5,177mm
Max Annual Capacity：150,000 Tons

Skin Passing Line
Main Function：Make tempered coils easier to be formed
Tension Leveling and Skin Passing Line
Main Function：Temper coils, level and trim to the desired width, electrolytic
spraying oil machine

Recoiling & Tension Leveller Line
Main function and Feature：
Main Function：level, recoil, trim to
the desired width, and spray oil electrolytically
Speed of Line：500 mpm Max

Steel pipe exclusivity
The Pipe & Tube Department of Chung Hung was established in May 1987 and began its fabrication
operation at the same time. This mill owns the first and largest ERW Pipe & Tube Department in
Taiwan and the manufacturing technology to produce the API welded steel pipe of 20’’. Furthermore,
it may provide customers with round pipes of different kinds of specifications and sizes. The welding
method of steel pipes adopts “H.F. electric resistance welding”. This mill is equipped with slitters,
No.2 Line and No.3 Line that respectively produce round pipelines or structural pipes of 4”~8” and
10”~20” . It is also equipped with shot blasting machine and PE coating line that may coat pipes
pursuant to requirements of customers to increase their durability and insulation.
This mill is the first professional Pipe & Tube Department that passes the examination of JIS in
Taiwan’s steel industry. Subsequently, it passes the CNS certification of Bureau of Standards,
Metrology & Inspection of Ministry of Economics Affairs, is granted the license to use API trademarks,
i.e. API-5L and API-5CT, by America Petroleum Institute, and is accredited with the ISO 9001, ISO
14001 and OHSAS 18001 certificates. Up till now, this mill still maintains excellent technology and
environment safety standards.
The main products of this mill are API-5CT casing and tubing, API-5L pipes for pipeline transportation,
and ASTM pipes for ordinary piping and structure, with the length of 6M~13M and width of
2.8mm~16.0mm.

Production Facilities
Slitter
Slitters play the role in the manufacturing process to cut coils into strips
conforming to the width required by the ERW Pipe & Tube Department, and the
quality of the cutting influences the production quality of the ERW steel pipe,
which is the first stop of the pipe manufacturing process.
Speed of Line：70 M/min(Max.)
Weight of coils：28 Tons(Max.)
Width of coils：1.6 M(Max.)
Thickness of coils：2.0mm~16.0mm
External diameter of coils：2.0M

No.2 Line
Produce round pipes of 4”～8” mainly for pipeline transportation and casing
and tubing. All improvement proposals and information technology of
manufacturing processes are implemented year by year to promote quality and
quantity.
Product Standard：API, ASTM, JIS and BS
Speed of Line：20M/min (Max.)
Product Specification：4 ", 5 ", 6 " and 8 "
Product Thickness：2.8mm～12.7mm
Product Length：5.5M～13M

No.3 Line
This line has the ERW Pipe & Tube Department with the largest diameter
utilizing the resistance welding method in Taiwan and produces large steel pipes
of 10”~20”.
Product Standard：API, ASTM and JIS
Product Specification：10", 12", 16", 18" and 20"
Product Length：5.5M～13.0M

No.7 Line
It mainly produces square flat pipes with small diameter and round pipes of 2”~
4”.
Product Standard：JIS, CNS and BS
Product Specification：50×50, 60×60, 40×80, 45×75, 50×100, 75×75 and 2”~4”
round pipes
Product Length：5.0M～12.0M

PE Coating Line
The PE coating line includes 1-sand shot blasting machine and PE coating
machine that coat pipes pursuant to requirements of customers and strength
the de-scaling, wear-resisting and insulation abilities.
Product Standard：JIS and requirements of customers
Product Specification：4" ～42"
Product Thickness：1.5mm~16.0mm
Product Length：4.0M~12.0M

Product introduction
Pipe & Tube products are widely used for pipeline transportation, general
structures, and machine structures. The annual production capacity of Chung
Hung pipe mill is 70,000 tons per year. The available size is 3 1/2" to 20" in
diameter and 1.2 to 12.7mm in thickness for all kinds of pipe products
conforming to different international standards. In addition to ISO 9001, ISO
14001, and OHSAS 1800, Chung Hung has also gained the certificates of API
5L, API 5CT, CNS 2056 G3030, CNS 4178 G3098, CNS 4435 G3102, CNS 4437
G3103, CNS 4626 G3111, CNS 7141 G3134, CNS 2606 G4060, CNS 6445 G3127,
JIS G3444, JIS G3466 and JIS G3452.

With excellent quality, high strength, sufficient ductility, and easy forming,
pipe products of Chung Hung can be widely applied for pipeline
transportation, casing and tubing, general structures, machine structures, and
so on. The types and main applications of pipe products can be listed as the
following table:

Financial Report
Chung Hung - 2012
Chung Hung - 2013

Chung Hung Steel

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