Production Facilities
Cold Rolled Steel
With strict quality control procedures and advanced technology our product provided an outstanding finish and workability which is highly valued by customer in the automobile, home appliances, furniture, drum, tube, filter and various other industrial segment.
Cold rolled steel manufactured by ISL is available in thicknesses ranging from 0.25mm to 3.0mm and is offered in a maximum width of 1250mm. ISL’s CRC is provided in a range of product specifications, ranging from drawing to structural and surface finishes from bright to matt to meet our customer specific requirements.
ISL’s manufacturing facility is strategically located in the port city of Karachi, the state-of-the-art facility comprises of machinery supplied by some of the most renowned steel processing equipment suppliers in the world such as SMS Siemag, Ebner, etc. Currently ISL has the capability of producing over 500,000MT of Cold Rolled products annually.
Product Specifications
Grades
| Type | Remarks | Surface Finish | Width (mm)* | Thickness (mm) |
| SPCC | Commercial Quality | Bright and Dull | 914, 1,000 and 1,220 | 0.25 to 3.00 |
| SPCG | Extra Deep Drawing Quality | Bright and Dull | 914, 1,000 and 1,220 | 0.25 to 3.00 |
*Slit widths and cut-to-length sheets are also available as per customers’ requirements.
Manufacturing Process
Hot rolled steel is cleaned by washing with hydrochloric acid on a push-pull pickling Line. It is then passed through a 4-HI Reversing Mill where the thickness is reduced; the coil is then forwarded for rewinding before being annealed in a controlled atmosphere of hydrogen. Once removed from the annealing cycle the coil is transferred to a skin passed mill where a final reduction take place and oil is applied through an electrostatic process. Before packing the CRC material is sent to a tension leveler where it is processed to ensure surface flatness.
CRC material can also be further processed as per customer requirement on our slitting and cut to length lines if specific coils strips or sheets are required.
Manufacturing Standards
Our products are made according to the following recognized manufacturing standards:
- JIS G3141 and equivalent
Quality Assurance Tests
| 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. |
Applications
Motor cycle frame, fender, muffler, chain cover, fuel tank, rim, seat pan, shock cover, precision tubes, auto door panels, various members/pillars/brackets etc.
Oil drums, lube drums, food Grade drums.
Refrigerators, deep freezers, split a/c, washing machines.
Ceiling lights, tube lights, ceiling fans, bracket fans, exhaust fans.
Roof and wall systems (industrial, commercial, and agricultural buildings) steel racks, structural members, corrugated sheets or profiles for roofing.
Telecom towers, shelters.
Filters, tubes etc.
Advantages
ISL cold rolled steel has excellent forming ability and has minimal deviation in mechanical properties including thickness, elongation and hardness.
The surface finishes provided by ISL give more adherences to all kinds of coatings such as chroming, painting and galvanizing.
ISL provides you best quality Cold rolled steel in a wide range of thickness and widths; Thickness 0.25 mm to 3.00 mm and width up to 1,250 mm.
The best quality hot rolled steel is imported from Tier one mills to give you a final product of unparalleled quality.
We manufacture CR steel on the basis of globally accepted standards on Japanese Industrial Standards.