KS steel grades — 823 designations — Page 2
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. 9 of 50 rows differ and carry an “Indicative” mark.
Also known as
823 designations| Grade | Category | C% by weight | Also inother standards |
|---|---|---|---|
| NCF750 | Nickel and cobalt alloys | ≤ 0.08 | 1 |
| NCF751 | Nickel and cobalt alloys | ≤ 0.1 | 1 |
| NCF800 | Nickel and cobalt alloys | ≤ 0.1 | 1 |
| NCF800H | Nickel and cobalt alloys | 0.05–0.1 | 1 |
| NCF800HTB | Nickel and cobalt alloys | 0.05–0.1 | 1 |
| NCF800HTP | Nickel and cobalt alloys | 0.05–0.1 | 1 |
| NCF800TB | Nickel and cobalt alloys | ≤ 0.1 | 1 |
| NCF800TP | Nickel and cobalt alloys | ≤ 0.1 | 1 |
| NCF80A | Nickel and cobalt alloys | 0.04–0.1 | 1 |
| NCF825 | Nickel and cobalt alloys | ≤ 0.05 | 1 |
| NCF825HTB | Nickel and cobalt alloys | — | — |
| NCF825TP | Nickel and cobalt alloys | ≤ 0.05 | 1 |
| Nimonic80A | Nickel and cobalt alloys | — | — |
| S30CM | — | 0.27–0.33 | 1 |
| S35CM | — | 0.32–0.38 | 1 |
| S45CM | — | 0.42–0.48 | 1 |
| S50C-CSP | Spring steels | 0.47–0.53 | 1 |
| S50CM | — | 0.47–0.53 | 1 |
| S55C-CSP | Spring steels | 0.52–0.58 | 1 |
| S55CM | — | 0.52–0.58 | 1 |
| S60C-CSP | Spring steels | 0.55–0.65 | 1 |
| S60CM | — | 0.55–0.65 | 1 |
| S65C-CSP | Spring steels | 0.6–0.7 | 1 |
| S65CM | — | 0.6–0.7 | 1 |
| S70C-CSP | Spring steels | 0.65–0.75 | 1 |
| S70CM | — | 0.65–0.75 | 1 |
| S75CM | — | 0.7–0.8 | 1 |
| SACM645 Indicative | Nitriding steels | 0.38–0.45 | 16 |
| SAPH310 | Sheet metal and slit strip | — | 1 |
| SAPH370 | Sheet metal and slit strip | — | 1 |
| SAPH400 | Sheet metal and slit strip | — | 1 |
| SAPH440 | Sheet metal and slit strip | — | 1 |
| SB410 | — | ≤ 0.3 | 1 |
| SB450 | — | ≤ 0.33 | 1 |
| SB450M | — | ≤ 0.25 | 1 |
| SB480 | — | ≤ 0.35 | 1 |
| SB480M | — | ≤ 0.27 | 1 |
| SBV1A | — | ≤ 0.25 | 1 |
| SBV1B | — | ≤ 0.25 | 1 |
| SBV2 | — | ≤ 0.25 | 1 |
| SBV3 | — | ≤ 0.25 | 1 |
| SCCrM1 Indicative | Quenched and tempered steels | 0.3–0.37 | 24 |
| SCCrM1 Indicative | Quenched and tempered steels | 0.22–0.29 | 25 |
| SCCrM3 Indicative | Quenched and tempered steels | 0.3–0.37 | 24 |
| SCM415M | — | 0.13–0.18 | 1 |
| SCM420 Indicative | Quenched and tempered steels | 0.3–0.37 | 24 |
| SCM420 Indicative | Quenched and tempered steels | 0.22–0.29 | 25 |
| SCM420TK Indicative | Quenched and tempered steels | 0.3–0.37 | 24 |
| SCM420TK Indicative | Quenched and tempered steels | 0.22–0.29 | 25 |
| SCM430 Indicative | Quenched and tempered steels | 0.3–0.37 | 24 |
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.






