| Grade | AISI 631, UNS S17700, W.Nr.1.4568, SUS631, 07Cr17Ni7Al |
| Standard | ASTM A564 |
| Surface | Bright, Pickling, Black, Polished |
| Shape | Round bar, Flat Bar, Square bar, Hexagonal bar |
| Diameter | 6mm - 600mm |
| Raw Materail | POSCO, Baosteel, TISCO, Saky Steel, Outokumpu |
| DIN | JIS | GB | ASTM / AISI |
| 1.4568 | SUS 631 | 07Cr17Ni7Al | 17-7PH, 631 |
| Grade | C | Mn | Si | P | S | Cr | Ni | Al |
| 631 | 0.09 | 1.0 | 1.0 | 0.04 | 0.03 | 16.0-18.0 | 6.5-7.75 | 0.75-1.5 |
| Alloy | Tensile strength Rm N/mm2 | Yield strengt RP0.2N/mm2 | Elongatio A5% | Brinell hardnes HB |
| Solid melting 1000~1100℃ fast cooling | ≤1030 | ≤380 | ≥20 | ≤229 |
| Aging at 565℃ | ≥1140 | ≥960 | ≥5 | ≥363 |
| Aging at 510℃ | ≥1230 | ≥1030 | ≥4 | ≥388 |