Product Overview
Hot rolled strip is rolled from a continuously cast slab and coiled while still hot, leaving a light mill scale finish and a low carbon structure that slits, forms and welds well. Its main role is feedstock – slit and roll formed into ERW round, square and rectangular tube, or pickled and then cold reduced into cold rolled coil and strip. Compared with plate it is thinner, and compared with a stop-start sheet line it arrives as a coil one uncoiler feeds continuously, so a tube mill or press runs without stopping to load blanks.
Specifications
| Parameter | Value |
|---|---|
| Thickness | 1.5 – 6.0 mm |
| Width | 300 – 1500 mm |
| Coil weight | 3 – 15 tons |
| Grade | SPHC / Q195 / Q235B / SS400 |
| Yield strength | 235 – 355 MPa |
| Tensile strength | 370 – 510 MPa |
| Elongation | min 23% |
| Thickness tolerance | +/- 0.10 – 0.25 mm by thickness band |
| Surface | Mill finish / black scale / pickled and oiled on request |
| Coil inner diameter | 508 / 610 mm |
| Edge | Mill edge / slit edge |
Applications
Slit and roll formed into water pipe, scaffold tube, fence posts and square hollow sections, or pickled and cold reduced into cold rolled coil. It is also blanked into wheel rims, drum lids, transformer tanks and general pressings. Tube mills in Africa, the Middle East and South America are the largest buyers, taking the 2.0-3.0 mm band as feedstock.
Packing / Delivery / Payment
Supplied in strapped bare coils with four to six bands, or pickled and oiled with a moisture barrier wrap; a 20GP holds about 25 tons and a 40HQ about 27 tons. Stock ships in 15-20 days and rolling orders in 20-30 days. Payment by L/C at sight or T/T with 30% deposit. Mill certificate, pickling quality report, SGS inspection, packing list and Certificate of Origin are provided.