KS steel grades — 823 designations — Page 7
Every grade designated under KS, with the material number it maps to, what kind of steel it is, its carbon window and how many other standards carry it. 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. 16 of 50 rows differ and carry an “Indicative” mark.
Also known as
823 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| SM58C Indicative | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| SM9CK Indicative | 1.1121 | Case hardening steels | 0.07–0.13 | 22 |
| SMn420 Indicative | 1.1160 | Low-temperature structural steels | 0.18–0.25 | 6 |
| SMn420H Indicative | 1.1160 | Low-temperature structural steels | 0.18–0.25 | 6 |
| SMn438 Indicative | 1.1167 | Quenched and tempered steels | 0.32–0.4 | 17 |
| SMn438H Indicative | 1.1167 | Quenched and tempered steels | 0.32–0.4 | 17 |
| SMn438M | — | — | 0.35–0.41 | 1 |
| SMn443M | — | — | 0.4–0.46 | 1 |
| SMnC420 Indicative | 1.1133 | Quenched and tempered steels | 0.17–0.23 | 20 |
| SMnC420H Indicative | 1.7131 | Case hardening steels | 0.14–0.19 | 24 |
| SNC415M | — | — | 0.12–0.18 | 1 |
| SNC631M | — | — | 0.27–0.35 | 1 |
| SNC836M | — | — | 0.32–0.4 | 1 |
| SNCM220 Indicative | 1.6523 | Case hardening steels | 0.17–0.23 | 18 |
| SNCM220H Indicative | 1.6523 | Case hardening steels | 0.17–0.23 | 18 |
| SNCM220M | — | — | 0.17–0.23 | 1 |
| SNCM415M | — | — | 0.12–0.18 | 1 |
| SNCM439 Indicative | 1.6565 | Quenched and tempered steels | 0.35–0.45 | 15 |
| SNCM447 Indicative | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| SPCC | — | Sheet metal and slit strip | ≤ 0.15 | 1 |
| SPCD | — | Sheet metal and slit strip | ≤ 0.1 | 1 |
| SPCE | — | Sheet metal and slit strip | ≤ 0.08 | 1 |
| SPCF | — | Sheet metal and slit strip | ≤ 0.06 | 1 |
| SPCG | — | Sheet metal and slit strip | ≤ 0.02 | 1 |
| SPE | — | — | ≤ 0.008 | — |
| SPHC | — | Sheet metal and slit strip | ≤ 0.15 | 1 |
| SPHD | 1.0332 | Unalloyed structural steels | ≤ 0.12 | 16 |
| SPHE | 1.0050 | Unalloyed structural steels | — | 23 |
| SPHE | 1.0335 | Unalloyed structural steels | ≤ 0.08 | 12 |
| SPLT390 | — | Low-temperature structural steels | ≤ 0.25 | — |
| SPLT460 | — | Low-temperature structural steels | ≤ 0.18 | — |
| SPLT700 | — | Low-temperature structural steels | ≤ 0.13 | — |
| SPPG | — | Unalloyed structural steels | ≤ 0.3 | — |
| SPPH380 | — | Unalloyed structural steels | ≤ 0.25 | — |
| SPPH420 | — | Unalloyed structural steels | ≤ 0.3 | — |
| SPPH490 | — | Unalloyed structural steels | ≤ 0.33 | — |
| SPPS380 | — | Unalloyed structural steels | ≤ 0.25 | — |
| SPPS420 | — | Unalloyed structural steels | ≤ 0.3 | — |
| SPPV235 | — | — | ≤ 0.2 | — |
| SPPV315 | — | — | ≤ 0.18 | — |
| SPPV315 Indicative | 1.0426 | Aging resistant steels | 0.08–0.2 | 17 |
| SPPV315 Indicative | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| SPPV355 | — | — | ≤ 0.2 | — |
| SPPV355 Indicative | 1.0426 | Aging resistant steels | 0.08–0.2 | 17 |
| SPPV355 Indicative | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| SPPV410 | — | — | ≤ 0.18 | — |
| SPPV450 | — | — | ≤ 0.18 | — |
| SPPV490 | — | — | ≤ 0.18 | — |
| SPS10 | — | — | 0.47–0.55 | — |
| SPS11A | — | — | 0.56–0.64 | — |
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.






