3. BOARD OF DIRECTORS
MR. MOHAMMED JAHANGIR ALAM
Group Chairman & Managing Director
MR. MD. ALAMGIR KABIR
Chairman
MR. MOHAMMED ALMAS SHIMUL
Additional Managing Director
4. MR. MD. ABDUR ROUF
Director
MR. ABDUL AHAD
Director
BOARD OF DIRECTORS
MR. MD. ASHRAFUZZAMAN
Director
MR. AZIZUL HOQUE RAZU
Director
5. GROWTH OF GPH
Established
Jahangir &
Others
Incorporated
GPH Ispat Pvt.
Ltd. Company
( Gr-40, Gr-60)
Introduced
500W TMT Bar
(120000 TPA)
Enlisted in Stock
Market as Public
Ltd. Company
Enhanced
Capacity up to
170000 TPA
Signed an
agreement
with PT to
introduce
QEAF &
Winlink
1987
2006
2009
2012
2012
2020
2016
Mill
Commissioning
& Capacity
Enhanced to
1000000 TPA
6. Steel Manufacturing Process Flow Diagram
(Scrap to Rebar)
1. Scrap Processing 2.1 Scrap Charging 2.2. Scrap Preheating
3. EAF Steel Making
and Primary Refining
4. Secondary
Refining Through LRF
5. Continuous Close
Casting Through CCM
Continued
Quality Checking Quality Checking
Quality Checking
7. Steel Manufacturing Process Flow Diagram
(Scrap to Rebar)
6. Hot charging
through IH
7. Rolling Through H-V
Stands
8. Tying,Bundling &
Weighing
9. Storing
10. Delivery
Quality Checking
Quality Checking
9. Sources & Versatility of Raw Materials, Additives & Alloys
Primary Raw Materials (Scrap)
HMS-1
HMS-2
P & S
Shredded
LMS
Bushlings
Sources…..
USA
Brazil
Australia
Japan
Singapore
Thailand
India
Korea
Own Oxygen Plant
Primary Refining Agent
Lime
Dolomite
Oxygen
Carbon
Argon
Nitrogen
Secondary Refining & Alloying Agent
Silico Manganese
Ferro-silicon
Ferro-manganese
Lime
Dolomite
CaC2
CaSi Wire
Floursper
Argon
Alumix
Synthetic Slag
10. Billets:
130x130 mm2 & 160X160 mm2
Rebar’s:
8-50mm
(Standards: BDS ISO 6935-2:2016 and its equivalent standard)
*GPH is the only Manufacturer in Bangladesh who are exporting billets to abroad &
earning foreign currency
GPH ispat Products
11. Future Product: Angle, Channel, H/I Beam, Square bar
( As per ISO 630, BS EN 10025, ASTM 572, GIS G 3192)
GPH ispat Products
Angle Channel H/I Beam Square Bar
12. Steel Standards & Grades
BDS ISO 6935-2:2016
B500CWR
B420DWR
B500DWR
BS 4449:2005+A3:2016
B500C
ASTM A706, ASTM A615
G60 [420]
We are also capable to produce product as per IS, JIS, GB, AUS/NUZ, GOST,
DIN etc.
13. Why GPH Quantum is Preferable
Mandatory requirement of Scrap Processing:
Due to the nature of charging system, It is mandatory to process the scrap in scrap yard.
In connection of that, by scrap shearing machine, metallic and non-metallic scrap are
separated, then from metallic scrap only ferrous materials are segregated and resized for
further operation.
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14. Why GPH Quantum is Preferable
Scrap Preheating System:
Scrap preheating chamber of the QEAF heats the scrap to a temperature of 600 °C.
During this process, it removes the paint, rust, moisture and primary impurities present
in the scrap.
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15. Why GPH Quantum is Preferable
Melting & Primary Refining Through QEAF:
QEAF removes unnecessary carbon and phosphorous by oxygen lancing and argon bottom
purging and turning the heated mixture into a homogenized mixture.
15
O₂ + 2C = 2CO
O₂ + 2Fe = 2FeO
FeO + C = CO + Fe
4P + 5O₂ = 2P₂O₅
16. Slag Free Tapping System:
• A big amount like 70MT of hot heel liquid metal
• Only 4 degree tilting angle
• Special Siphonic bottom tapping design
16
Why GPH Quantum is Preferable
17. Why GPH Quantum is Preferable
Tapping System of Different Technology:
17
Tapping of QEAF Tapping (FAST, Siphonic)
With 45-50% Hot Heel
Conventional EAF Tapping (EBT)
With 10%-15% Hot Heel
18. Why GPH Quantum is Preferable
Tapping System of Different Technology:
18
Traditional Induction F urnace Tapping (Tilting)
19. Why GPH Quantum is Preferable
Secondary Refining through LRF:
Again Secondary refining of liquid metal done in LRF & Sulphur is controlled by adding CaC2,
Fluorspar etc. .
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20. Why GPH Quantum is Preferable
Hydraulic Oscilation & EMS:
In CCM Dynaflex Oscillation & EMS ( Electro Magnetic Stirring) system also helps to floats
the slag on the liquid metal on mold tube, Resonance free operation, reduce oscillation
marks. Surface & Sub-surface Quality improved, Solidification Structure improved, Central
soundness enhanced.
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21. Why GPH Quantum is Preferable
Close Casting:
Fully Close Casting avoids contaminations with Air & Prevent O₂ & N₂ entrapment.
21
Automatic Alloy Charging System:
GPH introduces automatic alloy charging system to achieve the exact chemical
composition of billets.
22. Why GPH Quantum is Preferable
TC Rolls:
The New generation housing less free-floating rolling stands and More Tungsten Carbide rolls
(last 4 Stands) ensure the uniform diameter of the rebar, relative rib area and proper
transverse rib height that makes the construction more secure by establishing a strong bond
between the concrete and the rebar.
22
Pure & Clean Steel:
Since Quantum technology ensures to produce pure & clean steel, So GPH Quantum rebar
provides
Quality Consistency
More Corrosion Resistance
Highly Seismic Resistance (Excellent Fatigue Properties)
23. Extra Lab Test Facilities
Profilometer Hardness Testing
Machine Impact Testing
Machine
ED XRF
26. Why GPH Quantum is Preferable
Clean & Green Factory:
GPH setup specialized design of environmental technologies solution for QEAF & LF dedusting system. This ensures to meet
the need of worldwide steel industry and the fulfillment of the highest quality & environmental demand by the local
authority (DoE).
This system is capable to handle dust in exhaust gas below that the maximum limit (≤200 mg/Nm3) set by the department
of environment (DoE), Bangladesh. Moreover, the dust in exhaust gas also below than the limit (≤50 mg/Nm3) set by the
world bank.
During operation sound generates from the equipment & during material handling. The noise generated by the
equipment’s which is also less than the standard set (≤75 db) by the DoE & world bank (≤85 db).
Gaseous emission like NOx, SOx, CO/CO2 etc. are also within the standard set by the world bank (NOx/SOx is 500 mg/nm3,
CO is 100 mg/Nm3).
GPH is not using ground water for the plant. Besides plant there is a water dam. GPH is doing water harvesting there. The
whole plant water requirements is fulfilled by the harvesting water. Whole process water is recycled with close loop system.
Moreover in GPH factory a lot of landscaping done which makes the plant green.
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30. Shahjalal Int. Airport 3rd Terminal
GPH FEEL HONORED AS WE HAVE BEEN THE PART OF NATION BUILDER
Greater Dhaka Sustainable Urban Transport Project
Bus Rapid Transit (BRT) (Gazipur-Airport)
Dhaka Metro Rail Project (MRT Line-6 ) Matarbari 2x600 MW Ultra Super Coal Fired Power
Plant Project
35. Mayor Hanif Flyover
Kuril Flyover, Dhaka
GPH FEEL HONORED AS WE HAVE BEEN THE PART OF NATION BUILDER
AkhtaruzzamanFlyover , Chattogram 3rd Karnaphuli Bridge, Chattogram
