Cold rolling: use hot-rolled steel coils as raw materials, pickle and remove scale, and then carry out cold rolling. The finished product is hard rolled coils.
The strength, hardness, and toughness of hard rolled coils increase due to cold hardening caused by continuous cold deformation. The plastic index decreases, so the stamping performance will deteriorate, and it can only be used for parts with simple deformation.
Hard-rolled coils can be used as raw materials for hot-dip galvanizing plants, because hot-dip galvanizing units are equipped with annealing lines. The weight of hard-rolled coils is generally 6-13.5 tons, and the steel coils are continuously rolled at room temperature for hot-rolled pickled coils. The inner diameter is 610mm.
| Name | Cold Rolled Steel Coil/Sheet/Strip/Plate |
|---|---|
| Standard | JIS 3302 / ASTM A653 / EN10143 |
| Grade | Q235,SGCC,CGCC,SPCC,DX51D,DX52D,SPHC,DC01,DC03,DC04,ST12 |
| Width | 600~1250mm |
| Thickness | 0.125~3.0mm |
| Surface treatment | chromated / galvanized/oiled/annealed |
| ID coil | 508mm or 610mm |
| Coil weight | 3-8 MT |
| Package | Standard exporting package |
| Application | Industrial panels, roofing and siding for painting |
| Payment terms | 30%TT in advance+70% TT or irrevocable 100%L/C at sight |
| Price terms | FOB,CFR,CIF |
| Delivery time | within 25 days |
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