UNS steel grades — 2038 designations — Page 6
Every grade designated under UNS, 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. 7 of 50 rows differ and carry an “Indicative” mark.
Also known as
2038 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| G10860 | 1.1269 | Spring steels | 0.8–0.9 | 14 |
| G10900 | 1.0618 | Others | 0.9–0.95 | 5 |
| G10900 | 1.1282 | Others | 0.9–0.95 | 2 |
| G10950 Indicative | 1.0618 | Others | 0.9–0.95 | 5 |
| G10950 | 1.1274 | Spring steels | 0.95–1.05 | 13 |
| G10950 Indicative | 1.1283 | Others | 0.96–1 | 5 |
| G10950 | 1.9618 | Others | 0.9–1.03 | 5 |
| G11080 | 1.0721 | Free cutting steels | 0.07–0.13 | 15 |
| G11090 | 1.0721 | Free cutting steels | 0.07–0.13 | 15 |
| G11100 | 1.0702 | Free cutting steels | ≤ 0.15 | 2 |
| G11100 | 1.0703 | Free cutting steels | ≤ 0.15 | 2 |
| G11170 | 1.0710 | Free cutting steels | 0.12–0.18 | 5 |
| G11170 | 1.0712 | Free cutting steels | 0.14–0.2 | 4 |
| G11170 | 1.0725 | Free cutting steels | 0.12–0.18 | 5 |
| G11170 | 1.9705 | Others | 0.14–0.2 | 3 |
| G11370 | 1.0764 | Free cutting steels | 0.32–0.39 | 4 |
| G11370 | 1.9737 | Others | 0.32–0.39 | 3 |
| G11390 | 1.0727 | Free cutting steels | 0.42–0.5 | 8 |
| G11400 | 1.0726 | Free cutting steels | 0.32–0.39 | 15 |
| G11410 | — | — | — | — |
| G11440 | 1.0762 | Free cutting steels | 0.4–0.48 | 20 |
| G11460 | 1.0727 | Free cutting steels | 0.42–0.5 | 8 |
| G11460 | 1.9708 | Others | 0.42–0.49 | 2 |
| G12120 | 1.0711 | Free cutting steels | ≤ 0.12 | 6 |
| G12130 | 1.0715 | Free cutting steels | ≤ 0.14 | 14 |
| G12134 | 1.0718 | Free cutting steels | ≤ 0.14 | 11 |
| G12144 | 1.0718 | Free cutting steels | ≤ 0.14 | 11 |
| G12144 | 1.0737 | Free cutting steels | ≤ 0.14 | 8 |
| G12144 | 1.9718 | Others | ≤ 0.15 | 2 |
| G12150 | 1.0715 | Free cutting steels | ≤ 0.14 | 14 |
| G12150 | 1.0736 | Free cutting steels | ≤ 0.14 | 11 |
| G12150 | 1.9704 | Free cutting steels | ≤ 0.09 | 3 |
| G13300 | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| G13300 | 1.1173 | Quenched and tempered steels | 0.27–0.34 | 7 |
| G13300 Indicative | 1.5531 | Quenched and tempered steels | 0.27–0.33 | 5 |
| G13300 Indicative | 1.5526 | Others | 0.27–0.32 | 5 |
| G13300 Indicative | 1.1165 | Quenched and tempered steels | 0.25–0.32 | 16 |
| G13350 | 1.1167 | Quenched and tempered steels | 0.32–0.4 | 17 |
| G13350 | 1.5069 | High-strength steels | 0.35 | 7 |
| G13400 Indicative | 1.5069 | High-strength steels | 0.35 | 7 |
| G13400 Indicative | 1.5223 | Quenched and tempered steels | 0.38–0.45 | 8 |
| G13450 | 1.0912 | Others | 0.42–0.5 | 11 |
| G15180 | 1.1133 | Quenched and tempered steels | 0.17–0.23 | 20 |
| G15220 | 1.1133 | Quenched and tempered steels | 0.17–0.23 | 20 |
| G15240 | 1.1160 | Low-temperature structural steels | 0.18–0.25 | 6 |
| G15240 | 1.1169 | Low-temperature structural steels | 0.17–0.23 | 2 |
| G15260 | 1.1161 | Quenched and tempered steels | 0.2–0.3 | 3 |
| G15270 | 1.1161 | Quenched and tempered steels | 0.2–0.3 | 3 |
| G15270 | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| G15360 | 1.1166 | Others | 0.3–0.37 | 4 |
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.






