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. Brochure
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.
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. Brochure
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.
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. Brochure
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.
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. Brochure
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. Brochure
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. Brochure
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
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
