KS steel grades — 823 designations — Page 14
Every grade designated under KS, with the identifying and comparative data we hold for each. Open a grade for its full composition, properties and its designations in other standards. Unless marked, every name here is an asserted identity — the same grade under this standard’s own designation. 6 of 50 rows differ and carry an “Indicative” mark.
Also known as
823 designations| Grade | Category | C% by weight |
|---|---|---|
| STS5 | — | 0.75–0.85 |
| STS51 | — | 0.75–0.85 |
| STS630 | Stainless steels | ≤ 0.7 |
| STS630FB | — | ≤ 0.07 |
| STS631 | Stainless steels | ≤ 0.09 |
| STS631J1 | — | ≤ 0.09 |
| STS7 | — | 1.1–1.2 |
| STS8 | — | 1.3–1.5 |
| STS81 | — | 1.1–1.3 |
| STS836L | Stainless steels | ≤ 0.03 |
| STS890L | Stainless steels | ≤ 0.02 |
| STS93 | — | 1–1.1 |
| STS94 | — | 0.9–1 |
| STS95 | — | 0.8–0.9 |
| STSF304 | Stainless steels | ≤ 0.08 |
| STSF304H | Stainless steels | 0.04–0.1 |
| STSF304L | Stainless steels | ≤ 0.03 |
| STSF304LN | Stainless steels | ≤ 0.03 |
| STSF304N | Stainless steels | ≤ 0.08 |
| STSF310 | Stainless steels | ≤ 0.15 |
| STSF316 | Stainless steels | ≤ 0.08 |
| STSF316H | Stainless steels | 0.04–0.1 |
| STSF316L | Stainless steels | ≤ 0.03 |
| STSF316L Indicative | Stainless steels | ≤ 0.03 |
| STSF316LN | Stainless steels | ≤ 0.03 |
| STSF316N | Stainless steels | ≤ 0.08 |
| STSF317 | Stainless steels | ≤ 0.08 |
| STSF317L | Stainless steels | ≤ 0.03 |
| STSF321 | Stainless steels | — |
| STSF321 Indicative | Stainless steels | ≤ 0.08 |
| STSF321H | Stainless steels | — |
| STSF347 | Stainless steels | — |
| STSF347H | Stainless steels | — |
| STSF350 | Stainless steels | ≤ 0.03 |
| STSF410-A | Stainless steels | ≤ 0.15 |
| STSF410-A Indicative | Stainless steels | 0.08–0.15 |
| STSF410-B | Stainless steels | ≤ 0.15 |
| STSF410-B Indicative | Stainless steels | 0.08–0.15 |
| STSF410-C | Stainless steels | ≤ 0.15 |
| STSF410-C Indicative | Stainless steels | 0.08–0.15 |
| STSF410-D | Stainless steels | ≤ 0.15 |
| STSF410-D Indicative | Stainless steels | 0.08–0.15 |
| STSF630 | Stainless steels | ≤ 0.07 |
| STSF6B | Stainless steels | ≤ 0.15 |
| STSF6NM | Stainless steels | ≤ 0.05 |
| STSXM15J1 | Stainless steels | ≤ 0.08 |
| STSXM15J1TB | Stainless steels | — |
| STSXM27 | Stainless steels | ≤ 0.01 |
| STSXM27TB | Stainless steels | ≤ 0.01 |
| STSXM7 | Stainless steels | ≤ 0.08 |
This grade’s own name — recorded in our sources as this grade’s own designation under that standard.
Indicative — taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.
Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.






