KS steel grades — 823 designations — Page 12
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 |
|---|---|---|
| STS304TB | Stainless steels | ≤ 0.08 |
| STS304TBS | Stainless steels | ≤ 0.08 |
| STS305 | Stainless steels | ≤ 0.12 |
| STS305J1 | Stainless steels | ≤ 0.08 |
| STS309S | Stainless steels | ≤ 0.08 |
| STS309S Indicative | Heat resistant steels | ≤ 0.15 |
| STS309STB | Stainless steels | ≤ 0.08 |
| STS309TB | Stainless steels | ≤ 0.15 |
| STS31 | — | 0.95–1.05 |
| STS31 Indicative | Tool steels for cold work | 1–1.1 |
| STS310S | Stainless steels | ≤ 0.08 |
| STS310S Indicative | Heat resistant steels | ≤ 0.1 |
| STS310SFB | — | ≤ 0.08 |
| STS310STB | Stainless steels | ≤ 0.08 |
| STS310TB | Stainless steels | ≤ 0.15 |
| STS316 | Stainless steels | ≤ 0.08 |
| STS316CA | Stainless steels | ≤ 0.08 |
| STS316F | Stainless steels | ≤ 0.08 |
| STS316FB | — | ≤ 0.08 |
| STS316HFB | — | 0.04–0.1 |
| STS316HTB | Stainless steels | 0.04–0.1 |
| STS316J1 | Stainless steels | ≤ 0.08 |
| STS316J1L | Stainless steels | ≤ 0.03 |
| STS316L | Stainless steels | ≤ 0.03 |
| STS316L Indicative | Stainless steels | ≤ 0.03 |
| STS316LCA | Stainless steels | ≤ 0.03 |
| STS316LFB | — | ≤ 0.03 |
| STS316LN | Stainless steels | ≤ 0.03 |
| STS316LTB | Stainless steels | ≤ 0.03 |
| STS316LTBS | Stainless steels | ≤ 0.03 |
| STS316N | Stainless steels | ≤ 0.08 |
| STS316TB | Stainless steels | ≤ 0.08 |
| STS316TBS | Stainless steels | ≤ 0.08 |
| STS316Ti | Stainless steels | — |
| STS317 | Stainless steels | ≤ 0.08 |
| STS317J1 | Stainless steels | ≤ 0.04 |
| STS317L | Stainless steels | ≤ 0.03 |
| STS317LFB | — | ≤ 0.03 |
| STS317LN | Stainless steels | ≤ 0.03 |
| STS317LTB | Stainless steels | ≤ 0.03 |
| STS317TB | Stainless steels | ≤ 0.08 |
| STS321 | Stainless steels | — |
| STS321 Indicative | Stainless steels | ≤ 0.08 |
| STS321HTB | Stainless steels | — |
| STS321TB | Stainless steels | ≤ 0.08 |
| STS321TKA Indicative | Stainless steels | ≤ 0.08 |
| STS329J1 | Stainless steels | ≤ 0.08 |
| STS329J1FB | — | ≤ 0.08 |
| STS329J1TB | Stainless steels | ≤ 0.08 |
| STS329J2L | — | ≤ 0.03 |
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.






