Products
Quality is our Speciality
Do you want the highest value of your money?
Four Steels understands the value of your money and how much you are dedicated to your dream project. Therefore, we have made the quality of the material our top priority to assist you in making your project a market win when it comes to steelwork.
We do not compromise on the quantity of ingredients and elements to make the customer’s final product. The experts will strictly follow the client’s demands and requirements. By 100% purity and elegant steelwork, which is no less than an Art to our expert, you will be one step closer to a productive and profitable project. And this all happens only after well-dedicated and excellent teamwork.
Hot Selling Products
Cold Rolled Steel
Manufactured as per the ASTM A1008, JIS G3141 and equivalent standards
CRC comes with a wide range of product specifications. It includes drawable, deep drawable, commercial grades, and surface finishes. We follow strict quality control techniques that promote outstanding finishes and performance.
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Product Overview
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Manufacturing Process
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Manufacturing Standards
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Production Facilities
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Quality Assurance
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Applications
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Precautions
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
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.Properties:
- Annealed, skin passed
- Oiled / unoiled
- Bright or dull finish
- Tension levelled
Thickness Tolerance:
1/2 of ASTM A568 and 1/2 of JIS G3141
Applications:
Hot Dip Galvanized Steel
Manufactured as per the ASTM A653, JIS G3302 and equivalent standards
Galvanization plays a significant role in protecting steel from rusting and corrosion. It involves coating the upper layer of steel with zinc elements. We believe in innovative approaches and fully automated galvanization techniques. Our team adjusts the atmospheric conditions to complete steel galvanization efficiently.
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Product Overview
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Manufacturing Process
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Manufacturing Standards
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Production Facilities
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Quality Assurance
-
Applications
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Applications
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
508 mm
EXTERNAL DIAMETER
1,700 mm
SLIT WIDTH TOLERANCE
+/- 0.1 mm max.
MINIMUM SLITTED WIDTH
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
HVA/CR (DUCTING)
WALL PARTITIONS
SUSPENDED CEILINGS
STREET FURNITURE
BUNKERS AND GRAIN SILOS
RAZOR WIRES
TRUNKS AND BOXES
ROOFING SHEETS
Properties:
- Regular / suppressed spangle
- Chromated and dried
- Skin passed / Non skin passed
Thickness Tolerance:
1/2 of ASTM A924 and 1/2 of JIS G3302
Applications:
COLOR COATED STEEL
Manufactured as per the ASTM A755, JIS G3312 and equivalent standards
Four Steels produces excellent color-coated sheets using a coating capability of 84,000MT to cover various items. These include Cold Rolled, Galvalume, Galvanized, Stainless Steel, and Aluminium. We consider high durability, uniform coating, and stain resistance. In between, the lightweight coating has anti-corrosion properties. Polyester and Polyvinylidene Difluoride are used for coting.
Properties:
- Heat cured on GI substrate
- Single / double side painted
- Finish coat (Polyester / PVDF)
Thickness Tolerance:
1/2 of ASTM A924 and 1/2 of JIS G3312
Applications:
Four Steel Service Center
Slitting
Cut-to-length
C Channels for LGSS* / Wall Partitions
C and Z Purlins
Profiling
Sustainable Steel Production Process
C Channel
C Channel, also known as the structural channel, ensures that we use the structural beam to streamline the process of building construction. The C Channel process is the lifeblood of our civil engineering.
Cut to Length
Our professionals know how to use cut-to-length technique. They use expert skills to uncoil a steel coil. It helps to ensure cutting into required lengths with a precise tolerance.
Sheet Profiles
In commercial buildings, metal profile sheet systems are used efficiently to produce cost-effective and sustainable envelopes. Instead of single skin cladding, this process uses long metal profiles.
Slitting
Slitting is an essential manufacturing phase. Herein, a steel coil is slit into the width and length specified by the end application. The process also involves using a decoiler, slitter, and a recoiler.
Trimming
The trimming process of steel involves removing excess metal from a stamped part. This process is vital to ensure the stamped part to successfully reach the finished stage. Trimming phase starts the subsequent stages of the steel manufacturing operations.
Reviews from our satisfied clients
We are the top choice of our customers. Their positive response and trust in our services enhance our market worth among steel businesses.