COLD ROLLED STEEL

ISL’s Cold Rolled steel is manufactured on a modern, state-of-the-art Cold Rolling mill designed by SMS Siemag, Germany. This product is available in several strength grades, in bright and matt finishes, for general fabrication, drawing and industrial applications.

COLD ROLLED STEEL

ISL produces premium quality Cold Rolled Steel (Commonly known as Cold Rolled Coil “CRC”) on a modern and advanced Cold Rolling Mill designed by SMS Siemag, Germany. This state-of-the-art facility produces high-quality steel products with outstanding finish and workability. ISL’s cold rolled steel is highly valued by customers in the automobile, home appliances, furniture, drum, tube, filter, tin plate and various other industrial segments.

ISL’s CRC is provided in a range of product specifications, ranging from drawing to structural, to meet our customers’ specific requirements. After the recent expansion, ISL has the capacity to produce 1,000,000 MT of CRC annually.

MAX. WIDTH & THICKNESS

- 1,250 mm - 0.15 mm – 3.00 mm

GRADES

As per JIS G3141 and equivalent standards.

SURFACE FINISHING

- Bright - Matt

PICKLING

Hot rolled coils are descaled with hydrochloric acid.

COLD ROLLING

Pickled coils are reduced to the desired thickness by cold rolling.

REWINDING

To reduce tension, coils are rewound before annealing.

ANNEALING

Coils are heated and then cooled in a controlled atmosphere to achieve the required properties of the steel grade being produced.

SKIN PASSING

Skin passing enhances the mechanical properties, surface flatness and texture of the steel. If required, electrostatic oil is applied to the coils at this stage, in order to prevent oxidation.

TENSION LEVELLING

Tension leveller removes unwanted curvature formed on steel coil as a result of continuous rolling and ensures flatness through elongation of steel. Electrostatic oil is applied to the coils at this stage to prevent oxidation.

PACKING

Packing is customizable according to customer requirements.

THICKNESS RANGE

0.15 mm – 2.60 mm

COIL WIDTH

1,250 mm max.

COIL WEIGHT

25 tons max.

INTERNAL DIAMETER

508 mm

EXTERNAL DIAMETER

1,700 mm

SLIT WIDTH TOLERANCE

+/- 0.1 mm max.

MINIMUM SLITTED WIDTH

25 mm

Strategically located in the heart of Pakistan’s biggest business hub – Karachi and in close proximity of the sea port,
ISL’s cold rolled steel manufacturing facility has a production capability of 1,000,000 MT per annum.

TECHNOLOGY PARTNERS

ISL uses some of the world’s most advanced steel-making and allied equipment,
supplied by internationally renowned manufacturers :

GRADES

TYPE* REMARKS SURFACE FINISH STANDARD WIDTHS (mm) THICKNESS (mm)
SPCC Commercial Quality Bright and Dull 914, 1,000 and 1,219 0.15 – 3.00
SPCE Deep Drawing Quality Bright and Dull 914, 1,000 and 1,219 0.15 – 3.00
SPCG Extra Deep Drawing Quality Bright and Dull 914, 1,000 and 1,219 0.15 – 3.00

*JIS G3141 and equivalent standards.

ISL carries out various quality assurance tests to ensure that the material complies with the usage parameters.

QUALITY TESTS PERFORMED EQUIPMENT
TENSILE TEST Universal tensile testing machine,
Precision tensile testing machine
with arrangement for determining
R value and N value
CUPPING TEST Cupping test machine
HARDNESS TEST Vickers hardness tester, Rockwell superficial hardness tester
BEND TEST Hydraulic flattening press
FLUTING TEST Fluting mandrel
SURFACE FINISH Surface roughness tester
FLATNESS MEASUREMENT Surface plate

ELECTRICAL GOODS

AUTOMOTIVE COMPONENTS

TUBES AND SECTIONS

WAREHOUSES AND SHEDS

DOMESTIC APPLIANCES

PACKAGING DRUMS

HARDWARE AND SANITARY

FURNITURE AND FIXTURES

 

Transport and Handling Precautions

LIFTING DEVICES

Always use proper lifting devices like C-hook or parallel hooks, magnetic lifters, nylon slings etc. to lift, load and unload coils and sheet packets.

HANDLING WITH SLINGS

Nylon slings are preferred. Use rubber pads on coils where the sling comes in contact with them.

FORKLIFT

Do not push cut-sheets or roll the coils with a forklift, since this could cause scratching.

RUBBER SHEETS

When transporting coils in trucks, use rubber sheets beneath the coils or an exclusive transport stand.

SECURE LASHING

While transporting in containers, coils must be lashed adequately and securely to avoid damages to the products.

SLINGS & ROPES

Secure coils and sheet packets with slings/chains/ropes while transporting in trucks. Use rubber pads between these fasteners and steel products.

SKIDS

While stacking the coils on floor, ensure that they are placed on proper skids to avoid formation of dents.

SECURE STACKING

While transporting, ensure that the stacked sheets are firmly secured down, to avoid them slipping off due to vibrations and movements.

MOVING & SHIFTING

While using lifter, always carry sheets in a packed condition to prevent them from slipping or getting scratched.

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HOT DIPPED GALVANIZED STEEL

Galvanization is the process of applying a protective zinc coating to steel, to prevent rust and corrosion. ISL’s Hot Dip Galvanized steel is coated with molten zinc and processed on an automated production line. This product is offered in bright finish with regular or minimum spangle for general fabrication.

HOT DIPPED GALVANIZED STEEL

ISL’s Hot Dip Galvanized Steel is produced on a state-of-the-art, fully automated production line. The best available raw materials and processes are applied under controlled conditions to produce material of the highest quality.

With a production capacity of 450,000 MT, ISL’s Galvanizing facility produces products of high quality and endurance, thanks to a dynamic production team and rigorous quality control systems.

Thickness

0.15mm - 2.50mm

Grades

As per JIS G3302 and equivalent standards

Maximum Width

1250mm

ELECTROSTATIC OIL CLEANING

In order to achieve better coating adhesion, the steel’s surface is rinsed and air-dried to get rid of residual electrostatic oil.

CONTINUOUS ANNEALING

Cold rolled coils are annealed in a continuous NOX furnace.

GALVANIZING

The annealed steel is then immersed in a molten zinc pot under an inert atmosphere, which forms a protective layer around the steel.

SKIN PASSING

Skin Passing is done to reduce strain marks and impart a uniform surface texture on the coated product (If specified by the customer).

TENSION LEVELER

Tension leveler reduces any shape defects and ensures flatness through elongation of steel.

APPLICATION OF CHROMATE

A thin coat of chromate - a rust inhibitor, is applied to the hot dip galvanized product as it leaves the tension leveler. This chromate solution is squeegeed onto both surfaces and then air-dried. Continuous NOX furnace.

PACKING

Packing is customizable according to customer requirements.

THICKNESS RANGE

0.15 mm – 2.60 mm

COIL WIDTH

1,250 mm max.

COIL WEIGHT

25 tons max.

INTERNAL DIAMETER

508mm

EXTERNAL DIAMETER

1,700 mm max.

SLIT WIDTH TOLERANCE

+/- 0.1 mm

Minimum Slitted Width

25mm

In order to deliver quality products and to meet different customer requirements, ISL produces high-quality hot dip galvanized steel on two technologically advanced, fully automated continuous galvanizing lines. These galvanizing lines are equipped with cutting-edge galvanizing machinery, provided by some of the world’s most renowned equipment-makers and suppliers.

TECHNOLOGY PARTNERS:
 

ZINC COATINGS:

TYPE REMARKS APPLICABLE NOMINAL THICKNESS (mm) ZINC COATINGS
SGCC Commercial Use 0.15 – 2.00 Z05 – Z30
SGCH Commercial Use of Hard Class* 0.15 – 2.00 Z05 – Z30
SGCD Drawing Use 0.15 – 2.00 Z05 – Z30

*Available in Skin Passed and Non-Skin passed.

STANDARD NOMINAL WIDTHS
Our standard widths include 914 mm, 1,000 mm and 1,219 mm.
Other widths and thicknesses can be made available on request

 

QUALITY TESTS PERFORMED EQUIPMENT QUALITY TESTS PERFORMED EQUIPMENT
ZINC COATING MASS IN LINE Jasch gauge ZINC COATING MASS LABORATORY Weigh scale, glass ware, sample punch
ZINC POT CHEMISTRY ANALYZER Spectormax COATING ADHESION TEST T bend tester
FLUTING TEST Fluting tester TENSILE TEST Universal tensile testing machine
YIELD POINT TEST Universal tensile testing machine ELONGATION TEST Universal tensile testing machine, Vernier caliper
HARDNESS TEST Rockwell hardness tester, Vickers hardness tester BASE METAL THICKNESS Micrometer
STRIP WIDTH Measuring tape STRIP FLATNESS Surface plate
SURFACE DEFECTS Strobe light for inspection, visual inspection, top and bottom of moving strip CUPPING TEST Cupping test machine
STRIP SAMPLING Strip bench shear DETERMINATION OF CHEMICAL COMPOSITION Optical emission spectrometer for ferrous and non-ferrous materials

HVA/CR (DUCTING)

WALL PARTITIONS

SUSPENDED CEILINGS

STREET FURNITURE

BUNKERS AND GRAIN SILOS

RAZOR WIRES

TRUNKS AND BOXES

ROOFING SHEETS

 

Transport and Handling Precautions

LIFTING DEVICES

Always use proper lifting devices like C-hook or parallel hooks, magnetic lifters, nylon slings etc. to lift, load and unload coils and sheet packets.

HANDLING WITH SLINGS

Nylon slings are preferred. Use rubber pads on coils where the sling comes in contact with them.

FORKLIFT

Do not push cut-sheets or roll the coils with a forklift, since this could cause scratching.

RUBBER SHEETS

When transporting coils in trucks, use rubber sheets beneath the coils or an exclusive transport stand.

SECURE LASHING

While transporting in containers, coils must be lashed adequately and securely to avoid damages to the products.

SLINGS AND ROPES

Secure coils and sheet packets with slings/chains/ropes while transporting in trucks. Use rubber pads between these fasteners and steel products.

SKIDS

While stacking the coils on floor, ensure that they are placed on proper skids to avoid formation of dents.

SECURE STACKING

While transporting, ensure that the stacked sheets are firmly secured down, to avoid them slipping off due to vibrations and movements.

MOVING & SHIFTING

While using lifter, always carry sheets in a packed condition to prevent them from slipping or getting scratched.

Back to Products

COLOR COATED STEEL

Color Coated Steel is ISL’s high value-added product. Polyester (PE), Polyvinylidene Difluoride (PVDF) and Polyamide Paint mediums are used to coat various substrates. ISL’s high manufacturing standards ensure uniform coating with excellent durability, reflectivity and stain resistance.

COLOR COATED STEEL

ISL’s Continuous Color Coating facility produces color coated steel, using a Wet Paint Coating Technology. The 84,000 MT state-of-the-art facility processes and coats a wide range of substrates like cold rolled, galvanized, galvalume, aluminum and stainless steel, in any imaginable color.

The high quality color coating enhances the corrosion resistance of substrates and adds to their aesthetic appeal. The color coated steel produced at ISL is stain-resistant, corrosion-resistant and scratch-resistant which makes it ideal for various commercial and industrial applications.

THICKNESS

0.20 mm – 1.50 mm

GRADES

As per JIS G3312 and equivalent standards.

MAXIMUM WIDTH

1,250 mm

DEGREASING

The coil is degreased to remove machining fluids and other contaminants

2 CHEMICAL TREATMENT

A thin layer of chromate is applied in order to prepare the steel for primer coating.

PRIMER COATING

Primer is applied to ensure better adhesion of paint to the surface while providing additional protection to the material.

PRIME OVEN

Primer coated steel is baked in an oven to ensure adhesion to the substrate.

FINISH COATING

At this stage, top coat and backer coat are applied to the primed material.

FINISH OVEN

The final coat is baked again to ensure permanency of the surface coat.

RECOILER

Recoils the steel for packing and dispatch.

THICKNESS RANGE

0.15 mm to 2.50 mm

COIL WIDTH

1,250 mm max

COIL WEIGHT

25 tons max.

INTERNAL DIAMETER

508 mm

EXTERNAL DIAMETER

1,700 mm max.

SLIT WIDTH TOLERANCE

+/- 0.1 mm

MINIMUM SLITTED WIDTH

25 mm

TWO COAT – TWO BAKE SYSTEM

ISL’s color coating line applies uniform color thickness and highly reproducible colors and gloss
levels, thanks to the Two coat – Two bake system that enables application of primer and top coat
in the same run. Different color coats can be applied to the front and back simultaneously.
 
SPECIFICATIONS

GENERAL
Thickness (mm) 0.20 – 1.50
Width (mm) 300 – 1,250
Coil weight (MT) 1.5 – 10
Coil ID (mm) 508
Total coating thickness (micron) 30 – 100 (including metallic coat, top, back & primer)
Substrates Galvanized steel, Galvalume and Aluminium
Finishes Smooth, Matt, High Gloss and Grain
Specifications EN 10169, Equivalent of ASTM A-755 and JIS G 3312
Base material Galvanized Steel: as per ASTM A-653/JIS G 3302/EN 10327

Galvalume: as per ASTM A-792

Aluminium: as per ASTM B-209

 

PROPERTIES TEST TESTING STANDARDS POLYESTER PAINT
COLOR COATED COILS AND SHEETS JISG 3312 EN 10169 ASTMA 755  
Dry film thickness Coating thickness   EN 13523 – 1 ASTM D 1186 As per order
Gloss Specular gloss at 60° 13.2.3 EN 13523 -2 ASTM D 523 20 – 90 GU
Scratch hardness Pencil hardness 13.2.3 EN 13523 – 4 ASTM D 3363 H – 2H
Impact resistance Reverse impact test 13.2.4 EN 13523 – 5 ASTM D 2794 100 kg – cm
Adhesion quality Cupping test 13.2.5 EN 13523 – 6 ASTM D 643 6.5 mm (min)
Flexibility T-bend test 13.2.2 EN 13523 – 7 ASTM D 4145 1T – 5T
Corrosion resistance Salt spray (fog) test 13.1.3 EN 13523 – 8 ASTM D 117 500 hrs
Solvent resistance M.E.K. rubbing test   EN 13523 – 11 ASTM D 4213 ASTM D 5402 100 dr (min)
Adhesion Cross hatch cutter with standard adhesion tape 13.2.2 EN ISO 2409 ASTM D 3359 4B
Measurement of color difference Data color spectrometer       ECC standard or as per agreement with the customer

DOMESTIC APPLIANCES

COLD STORAGE UNITS

WAREHOUSE SHEDS

UTILITY BOXES

FALSE CEILINGS

ROOFING SHEETS

SANDWICH PANELS

FURNITURE AND FIXTURES

 

Transport and Handling Precautions

LIFTING DEVICES

Always use proper lifting devices like C-hook or parallel hooks, magnetic lifters, nylon slings etc. to lift, load and unload coils and sheet packets.

HANDLING WITH SLINGS

Nylon slings are preferred. Use rubber pads on coils where the sling comes in contact with them.

FORKLIFT

Do not push cut-sheets or roll the coils with a forklift, since this could cause scratching.

RUBBER SHEETS

When transporting coils in trucks, use rubber sheets beneath the coils or an exclusive transport stand.

SECURE LASHING

While transporting in containers, coils must be lashed adequately and securely to avoid damages to the products

SLINGS & ROPES

Secure coils and sheet packets with slings/chains/ropes while transporting in trucks. Use rubber pads between these fasteners and steel products.

SKIDS

While stacking the coils on floor, ensure that they are placed on proper skids to avoid formation of dents.

SECURE STACKING

While transporting, ensure that the stacked sheets are firmly secured down, to avoid them slipping off due to vibrations and movements.

MOVING & SHIFTING

While using lifter, always carry sheets in a packed condition to prevent them from slipping or getting scratched.

Back to Products

COLD ROLLED STEEL

ISL’s Cold Rolled steel is manufactured on a modern, state-of-the-art Cold Rolling mill designed by SMS Siemag, Germany. This product is available in several strength grades, in bright and matt finishes, for general fabrication, drawing and industrial applications.

HOT DIPPED GALVANIZED STEEL

Galvanization is the process of applying a protective zinc coating to steel, to prevent rust and corrosion. ISL’s Hot Dip Galvanized steel is coated with molten zinc and processed on an automated production line. This product is offered in bright finish with regular or minimum spangle for general fabrication.

COLOR COATED STEEL

Color Coated Steel is ISL’s high value-added product. Polyester (PE), Polyvinylidene Difluoride (PVDF) and Polyamide Paint mediums are used to coat various substrates. ISL’s high manufacturing standards ensure uniform coating with excellent durability, reflectivity and stain resistance.

Service Center

ISL’s Service Center shapes flat rolled steel into various forms for a wide range of industrial and commercial applications, ranging from profiles that form highly durable structure and roofs, to custom-cut sheets and slitted coils that serve as ready-to-use input for various purposes.

CUT-TO-LENGTH

CUT-TO-LENGTH

SLITTING

SLITTING

SHEET PROFILES

SHEET PROFILES

C-CHANNEL

C-CHANNEL

TRIMMING

TRIMMING

CUT-TO-LENGTH

Thickness Range

0.15 to 2.50 mm

Coil Width

1,250 mm max.

Coil Weight

25 Tons max.

Current Length

400 mm to 1,250 mm

Cutting Length

600 mm to 4,000 mm

Pallet Weight

2.5 Metric Tons max.

Tolerance of Cutting Length

+/-1 max.

SLITTING

Thickness Range

0.15 to 2.60 mm

Coil Width

1,250 mm max.

Coil Weight

25 Tons max.

Internal Diameter

508 mm

External Diameter

1,700 mm

Min Slitted Width

26 mm

Slit Width Tolerance

+/- 0.1 max.

SHEET PROFILES

Sinusoidal Profile

Available In 0.30 mm to 0.60 mm

Clip Lock Profile

Available In 0.40 mm to 0.60 mm

Screw Down Profile

Available In 0.30 mm to 0.70 mm

C-CHANNEL

Available In 0.75 mm, 0.95 mm and 1.15 mm

TRIMMING

As per requirement

ADVANTAGES OF ISL PRODUCTS

Availability

Nationwide Network

Dimensional Precision

Customization

Product Quality

After Sales Support

Packing Standards

Availability

ISL's efficient inventory management system ensures that running items are available ex-stock.

CERTIFICATIONS