| |
ASTM/ ASME |
EN |
DIN |
Description |
| Unground |
- |
- |
- |
Slabs with no grinding. |
| Ground |
- |
- |
- |
Slabs with grinding. |
| HR |
- |
1U |
a1 |
Hot rolled (not heat treated, not descaled). Suitable for products which are to be further worked (e.g. re-rolling). |
| HRA |
- |
1C |
Ic |
Hot rolled and heat treated (not descaled). Suitable for industrial heat resisting and materials handling applications. |
| HRP |
|
|
- |
Hot rolled and pickled (not heat treated). |
| No. 1 |
No. 1 |
1D |
IIa |
Hot rolled, heat treated and descaled. Suitable when smoothness and uniformity of finish are not important. |
| 2D |
No. 2D |
2D |
IIIb |
Cold rolled, heat treated and pickled. Dull, smooth finish. Suitable for forming applications. |
| 2B |
No. 2B |
2B |
IIIc |
Cold rolled, heat treated and pickled. Bright and smoother finish than 2D (obtained by skin passing or tension levelling). |
| 2E |
No. 2B |
2E |
- |
Cold rolled, heat treated and mechanically descaled, may be followed by pickling. Rough and dull finish. |
| No. 4 |
No. 4 |
2G |
IV |
A linearly textured polished finish, one or both sides, with a typical surface roughness (Ra) of about 0.6 m. |
| SB |
No. 6 |
2J |
- |
ScotchBrite finish, one or both sides, with a transverse Ra <0.5 m. |
| SSB |
- |
- |
- |
Superior ScotchBrite finish, one or both sides, with a transverse Ra <0.25 m. |
| BA |
Bright Annealed Finish |
2R |
IIId |
Cold rolled, bright annealed finish, retained by final annealing in a controlled atmosphere furnace (may be skin passed). Smooth, bright, reflective finish. |
| BE |
- |
- |
- |
Columbus 2B cold rolled, but final anneal in a controlled atmosphere furnace. |
