GB/T 3280 vs ASTM A240 vs EN 10088-2: cold-rolled stainless coil
Cold-rolled coil commonly references GB/T 3280, ASTM A240 and EN 10088-2. Surface codes and dimensional tolerance standards are the key acceptance differences.
Cold-rolled stainless coil is commonly purchased to GB/T 3280, ASTM A240 or EN 10088-2. Besides grades, surface and dimensional standards matter:
| Item | GB/T 3280 | ASTM A240 | EN 10088-2 |
|---|---|---|---|
| Product | Cold-rolled plate/strip | Plate/sheet (hot and cold rolled) | Cold/hot-rolled flat products |
| Surface | 2B/BA/No.4 (GB codes) | No.1/2B/BA/No.4 etc. | 2B/2D/2H/2R (different EN designations) |
| Tolerances | GB/T 708 etc. | A480 (general requirements) | EN 10131 / EN 10051 |
| Grades | 06Cr19Ni10 etc. | 304/316L etc. | 1.4301/1.4404 etc. |
Acceptance points:
1) Specify "surface code + dimensional standard", e.g. 304 2B per ASTM A240 + A480, or 1.4301 2B per EN 10088-2 + EN 10131.
2) EN 2D/2B/2R and GB 2B/BA are not strictly one-to-one; agree a physical sample for appearance acceptance.
3) For cold-rolled coil also check flatness (waviness, crossbow), thickness tolerance, coil weight and inner diameter.
Writing grade, surface, dimensional standard and tolerance class into the contract is the most effective way to avoid disputes.
Compiled by SteelWe editors and industry experts. For industry exchange only; not trading or investment advice. Cite the source when quoting.
