Products

Billets

Pakistan Steel billets, are produced to tight tolerances, high surface finish and superior quality. Pakistan Steel's high quality billets are used for Manufacturing plain, deformed, twisted and ribbed bars. Manufacturing steel sections viz, rails, angles, joints, channels, squares, flat bars, rods, wire rods, bailing hoops, tees and chains etc. Manufacturing seamless pipes. Manufacturing of machine components. Forging and stamping. Manufacturing of spring steel flat bars. Sizes & Tolerances Hot Rolled Steel Billets Size Of Square Lenght Radius Of Round Ends Tolerance Limit FromSide Of The Square 50mm up to 6 meters 7mm ±1.2mm 65mm up to 6 meters 9mm ±1.6mm 75mm up to 6 meters 12mm ±2.0mm 100mm up to 6 meters 15mm ±2.4mm 60, 80 and 90mm Square Billets and 50, 56, 60 and 75mm Round Bars can also be produced if ordered in substantial quantity. Cast Steel Billets Size Of Square Tolerance 80mm ±2.0% 100mm ±2.0% 125mm ±1.75% 150mm ±1.50%

Hot Rolled Products

Hot rolled carbon steel coils, sheets, strips and plates are produced at our 1700mm Hot Rolling Strip Mill. Uses. Seam Welded Pipes for Gas/Water/Oil. Storage Tanks, Vessels, Containers. Ships/Barges, Launches & Floating Structures. Fabricated Sections/Structures. General Purpose Sheets/Plates. Wheel Rims. Formed Sections, Steel Flooring and Cold Rolled Products. Standard Sizes Of Hot Rolled Sheets As Rolled Edges In (mm) Thickness (mm) Min. & Max. Sheet Lengths per Width (W) 1000 (W) 1220 (W) 1500 (W) 1.6, 2.0 2440 2440 - 2.35 - 2440 - 2.65, 2.90 2440 2440 - 3.25, 3.65 2440 2440, 6000 2440, 3000, 6000 3.90, 5.0, 6.0 2440, 6000 2440, 6000 2440, 3000, 6000 7.0, 8.0, 9.0, 10.0, 12.0 2440, 6000 2440, 6000 2440, 3000, 6000 Standard Sizes Of Hot Rolled Coils Width As Rolled (mm) Thickness Of Hot Rolled Coils (mm) 1000 & 1220 1.6, 2.0, 2.35, 2.65, 2.90, 3.25, 3.65, 3.9, 4.0, 4.5, 5.0, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0, 12.0 1500 2.90, 3.25, 3.65, 3.9, 4.0, 4.5, 5.0, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0, 12.0 NOTE: Hot rolled carbon steel coils can be supplied in other dimensions (width and thickness) if ordered in substantial quantity. 1.6 to 6.0mm can be supplied in pickled and oiled state as well, upon mutual agreement. H.R. sheets/coils (trimmed) edges would be 50mm less than the width of rolled edges. Allowable Telescopicity In Hot Rolled Coils Thickness(mm) Width Telescopic Value Upto & Incl. 2.5 Upto & Incl. 800 over 800 50 100 Over 2.5 Upto & Incl. 800 over 800 35 70 NOTE: Coils having one inner or outer ring above the coil edge should not be considered a telescopic coil. Loosing of two outer rings of the coil cannot be considered a reject. Edge Condition Cracks or torn edges on the mill edges shall be within one half of the width tolerance. Local bent edges (angle 90° or less) are allowed. Camber Tolerances For Coils And Cut Lengths Coils -- 25mm in any 5000mm length sheets -- 0.5% x length.

Cold Rolled Products

Cold Rolled Sheets/Coils. Sizes Thickness: 0.3 to 2.5mm Width: 700 to 1500mm Lengths: 1 to 4 meters Coil inner dia: 600mm Coil outer dia: 1800mm (max) Max. coil weight 14.5 tons Min. pack weight 5.0 tons Specification Of Cold Rolled Steel Flat Products Grades Steel Quality Steel Grade Chemical Composition (Cast Analysis) % Mechanical Properties Ref. Standard C Max Mn Max Si Max P Max S Max Al Min Yield Stress Min. (N/mm2) Tensile Strength Max. (N/mm2) Elong'n % Min. Lo=50 mm 180 Bend Mandrel Dia. Hard- ness Max. HRB HR 30T Commercial CR-1 0.15 0.60 - 0.05 0.05 - - - - 0a 65 - ISO 3574-70 Drawing CR-2 0.12 0.5 - 0.04 0.04 - - 370 31 - 57 55 -do- CR-3 0.10 0.45 - 0.03 0.03 - - 350 35 - 53 52 -do- CR-4 0.08 0.45 - 0.03 0.03 - - 340 37 - 50 50 -do- SPCC - - - - - - - 270 min 32 - - - JIS G 3141-91 SPCD - - - - - - - 270 min 34 - - - -do- Structural CR-220 0.15 - - 0.05 0.05 - 220 300 min 22 1a - - ISO 4997-83 CR-250 0.20 - - 0.05 0.05 - 250 330 min 20 2a - - -do- CR-320 0.20 1.50 - 0.05 0.05 - 320 400 min 16 2a - - -do- 1. Other steel grades can be produced against specific orders. 2. 1 Kgf/mm2 = 9.80665 (N/mm2) MPa Lo = gauge length of test piece in mm a = Thickness of bend piece Standard Sizes Of Cold Rolled Sheet & Coils With Tempered (Trimmed) Edges Thickness, mm 0.45, 06, 08, 10, 12, 16, 20, 25 Width, mm 915, 950, 1220, 1250 Sheet length per width, mm 1830, 2440 Packet weight 10T and coil weight upto 15T. Coil and packet weight can be reduced upon mutual agreement. Standard Thickness Tolerances For Cold Rolled Sheets/Coils (values in mm) Specified Widths Thickness tolerances, over and under for specified thickness Upto & Including 0.4 Over 0.4 Upto & Including 0.6 Over 0.6 Upto & Including 0.8 Over 0.8 Upto & Including 1.0 Over 1.0 Upto & Including 1.2 Over 1.2 Upto & Including 1.6 Over 1.6 Upto & Including 2.0 Over 2.0 Upto & Including 2.5 600 upto and including 1200 0.07 0.08 0.09 0.1 0.12 0.14 0.16 0.18 Over 1200 upto and including 1500 0.08 0.09 0.1 0.11 0.13 0.15 0.17 0.20 Over 1500 - 0.1 0.11 0.12 0.14 0.17 0.19 0.22 The thickness tolerances for sheets in coil form are the same as for sheets supplied in cut lengths, but in cases where welds are present, the tolerances shall be double those given over a length of 15m in the vicinity of the weld. Special Thickness Tolerances For Cold Rolled Sheets/Coils (values in mm) Specified Widths Thickness tolerances, over and under for specified thickness Upto & Including 0.4 Over 0.4 Upto & Including 0.6 Over 0.6 Upto & Including 0.8 Over 0.8 Upto & Including 1.0 Over 1.0 Upto & Including 1.2 Over 1.2 Upto & Including 1.6 Over 1.6 Upto & Including 2.0 Over 2.0 Upto & Including 2.5 600 upto and including 1200 0.04 0.045 0.055 0.065 0.075 0.09 0.11 0.125 Over 1200 upto and including 1500 0.045 0.055 0.065 0.075 0.085 0.11 0.125 0.14 Over 1500 - - 0.075 0.085 0.100 0.120 0.140 0.155

Galvanised Products

Sizes Thickness: 0.5 to 1.5mm Width: 700 to 1500mm Lengths: 1.5 to 4 meters Zn deposition 120 to 850gm/m2 Pack weight Upto -- 5 - 10MT Coil inner dia: 500mm Coil outer dia: 100mm to 1300mm Weight 5 tons Specification Of Galvanised Steel Flat Products Grades Steel Quality Steel Grade Chemical Composition (Cast Analysis) % Mechanical Properties Ref Standard C Max Mn Max Si Max P Max S Max Al Min Yield Stress Min. (N/mm2) Tensile Strength Max. (N/mm2) Elong'n % Min. Lo=50 mm 180 Bend Mandrel Dia. Commercial G-01 0.15 0.60 - 0.05 0.05 - - - - 1a ISO 3575-76 Lock Form G-02 0.12 0.60 - 0.04 0.04 - - - - 0a -do- Drawing G-03 0.12 0.5 - 0.04 0.04 - - 430 24 - -do- G-04 0.10 0.45 - 0.03 0.03 - - 410 26 - -do- G-05 0.08 0.45 - 0.03 0.03 - - 410 29 - -do- Structural G-220 0.25 1.70 - 0.05 0.05 - 220 320 min 20 1a ISO 4998-77 G-250 0.25 1.70 - 0.05 0.05 - 250 350 min 18 1a -do- G-280 0.25 1.70 - 0.05 0.05 - 280 390 min 18 2a -do- G-320 0.25 1.70 - 0.05 0.05 - 320 430 min 16 3a -do- 1. Other steel grades can be produced against specific orders. 2. 1 Kgf/mm2 = 9.80665 (N/mm2) MPa Lo = gauge length of test piece in mm a = Thickness of bend piece Standard Sizes Of Galvanised Coils As Rolled(Trimmed) Edges Thickness, mm 0.5, 0.6, 0.8, 1.0, 1.2, 1.5 Width, mm (915), 950, (1220), 1250 Coil weight 5 tons Standard Sizes Of Galvanised Sheets As Rolled(Trimmed) Edges Thickness, mm 0.5, 0.6, 0.8, 1.0, 1.2, 1.5 Width, mm (915), 950, (1220), 1250 Length, mm 1830 to 2440 Packet weight 10 tons Thickness Tolerances For GP Coils & Cut Lengths(values in mm) Specified Widths Thickness tolerances, over and under for specified thickness 0.5 upto & Including 0.8 Over 0.6 Upto & Including 0.8 Over 0.8 Upto & Including 1.0 Over 1.0 Upto & Including 1.2 Over 1.2 Upto & Including 1.5 Upto and including 1200 ±0.09 ±0.10 ±0.11 ±0.13 ±0.15 Over 1200 upto and including 1500 ±0.10 ±0.11 ±0.12 ±0.14 ±0.16 Thickness is measured at any point on the sheet not less than 40mm from a side edge. NOTE: The tolerance for grade 320 will be increased by 25% applying normal rounding off procedures. USES Automobiles Roofing Shuttering Panelling Manufacture of buckets, utensils, cans, containers Desert coolers, Air conditioners, Water coolers Fresh water tanks, etc Domestic appliances

Chequered Plates & Formed Sections

Chequered Plates Specifications Diamond pattern in Pakistan Steel grades Sizes Thickness: 4 to 8mm Width: 1000mm & 1220mm Lengths: 2000mm & 2440mm Formed Sections Sizes Thickness: 2 to 2.5mm (for cold rolled material) 2 to 8.0mm (for hot rolled material) Blank Width: 100 to 600mm Length: 3 to 12m Packet Weight: 5 tonnes Ultimate tensile strength 65kgf/mm2 Max Tolerances Base/Height: 50 to 100mm (+1mm) 100 to 150mm (+1.5mm) 200 to 300mm (+2.5mm) Length: Upto 6 meters (+ 40mm) 6 to 12 meters (+80mm) Negative tolerance is also possible on arrangement.

Pig Iron Pakistan Steel produces, two grades of Pig Iron - Foundry Grade Pig Iron (F.P.I) and Conversion Grade Pig Iron (C.P.I). Normal practice at Pakistan Steel is to produce Conversion Grade Pig Iron (CPI). Pig Weight: 45kg (Max) Width of Pig: 115 to 200mm Thickness of Pig: 60 to 100 mm No. of Notches: 2 Packing: Loose Chemical Compositions Type Carbon % Silicon % Manganese % Sulphur % (max) Phosphorous % (max) FPI--1 3.5 to 4.5 3.26 to 3.75 0.5 to 1.2 0.06 0.30 FPI--2 3.5 to 4.5 2.76 to 3.25 0.5 to 1.2 0.06 0.30 FPI--3 3.5 to 4.5 2.26 to 2.75 0.5 to 1.2 0.06 0.30 FPI--4 3.5 to 4.5 1.76 to 2.25 0.5 to 1.2 0.06 0.30 FPI--5 3.5 to 4.5 1.26 to 1.75 0.5 to 1.2 0.06 0.30 FPI--6 3.5 to 4.5 1.0 to 1.25 0.5 to 1.2 0.06 0.30 CPI--1--A 3.5 min 1.25 max 0.4 min 0.05 0.30 CPI--1--B 3.5 min 1.25 max 0.4 min 0.05 - 0.07 0.30 Sulphur more than 0.06% in FPI would be called FP I- Special and CPI with sulphur more than 0.07% would be called CPI - Special.

Coke

Metallurgical Coke Coke is produced at the Coke Oven and By-products Plant and is the solid reduce of the destructive distillation of coal blend. It is cellular, infusable and hetrogeneous in both physical and chemical properties.It is used as a fuel and reducing agent in the Blast Furnace for the manufacturing of Pig Iron. The standard specifications of Pakistan Steel coke are listed below. Excessive quantity is saleable in the market. Sizes: 0 - 25mm 25 - 80mm +80mm Moisture Content 3% typical Ash Content 13% (max) Volatile matter 1.5% (max) Sulphur 0.8% (max) Calorific Value 7000 - 8000 K cal/kg Packing: Loose Uses Widely used as a fuel by foundries in cupolas for melting iron scrap and pig iron. In sugar mills employing the carbonising process. For making chemicals/calcium carbide. Used in the pharmaceutical industries. Coke breeze is used for steam generation in boiler houses. Used in Steel making for carbon adjustment.

Oxygen & Nitrogen

Pakistan Steel has it's own Oxygen Plant, manufactured by L'Air Liquide of France. The plant is designed and operated to a capacity to fulfill all our production needs. The plant comprises two identical air separation units in which oxygen and nitrogen are distilled from the atmosphere. The main consumer of oxygen is the Steel Making Plant where oxygen is blown into the convertors in order to convert molten iron into steel. Oxygen is also supplied to the Central Maintenance department where it used in welding and cutting processes. The gaseous Nitrogen produced is mainly used as a shielding & purging gas at the Cold Rolling Mill in the annealing & galvanizing units. Nitrogen is also used in the hydraulic systems of the Cold Rolling and Hot Strip Mills and as an inert gas at the Coke Dry Quenching Plant. In addition both gases are also supplied in cylinders to facilitate the work where pipeline network is not available. In addition both gases are also supplied in cylinders to facilitate the work where pipeline network is not available and liquid oxygen is also made for external sales, subject to availabilty. Oxygen Nitrogen Output (cubic meters/hour): 15200 9000 Purity: 99.5% 15ppm Pressure (bar): 0.15 0.80

Refractory Bricks

Refractory Bricks The following types of refractory bricks are produced at Pakistan Steel. Tar Bonded Dolomite Refractories Tar Bonded Dolomite Compound Fire Clay Refractories Specifications Type A Type B Aluminium Oxide % 40 - 60 28 min Refractoriness °C 1730 min. 1670 min Deformation Temp. (at load of 2kgf/cm2) °C 1400 min

Coal Tar

Specifications Density at 20°C: 1.1930 (Typical) Moisture: 5% max Ash: 0.3% max Flash Point According to Pensky Martens (open cup): 139°C Coal tar is a by-product of the Coke Oven and By-product plant during the manufacture of metallurgical coke. Coke oven gas of 80 - 82°C is cooled in tubular gas coolers equipped with horizontal tubes each with a 3000 square meter cooling surface. Coke oven gas after cooling in the coolers is delivered for purification from the tar traces into electrostatic precipitators located on the suction side of the coke oven gas blowers. The coal tar is sent to tghe tar settling tanks for separation from water, then it flows to the tank for coal tar from where it is pumped to the storage tanks.

Granulated Blast Furnace Slag

Blast Furnace Slag, is produced as a result of the reduction of iron oxide to iron. It consists of silicates, the alumina silicate of lime, a minor percentage of ferric and managanese oxide and sulphur.   Chemical Analysis Calcium Oxide 36 - 40% Silica 36 - 39% Alumina 14 - 16 % Magnesium Oxide 9% max Maganese Oxide 1.3% max Titanium Oxide 0.881% max Iron Oxide 0.5% max Sulphur 1.5% max

Boulder Slag

Boulder Slag, is produced by Pakistan Steel by using a semi direct method in which slag formed from the Blast Furnaces is processed at a slag granulation plant via a wet quenching process.   Chemical Analysis Calcium Oxide 36 - 40% Silica 36 - 39% Alumina 14 - 16 % Magnesium Oxide 9% max Maganese Oxide 1.3% max Titanium Oxide 0.881% max Iron Oxide 0.5% max Sulphur 1.5% max

Ammonium Sulphate Specifications Acidity 0.04 max Nitogen 21% Sulphur 24.24% Crystal size 0.25mm, 70% min