--- title: "UNS steel grades — 2038 designations — Page 4" description: "Steel grades designated under UNS, with chemical composition, mechanical properties and equivalents in other standards. 2038 designations across…" canonical: https://steelequivalents.com/materials/uns/page/4 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/uns/page/4.md cs: https://steelequivalents.com/cs/materiály/uns.md de: https://steelequivalents.com/de/werkstoffe/uns.md es: https://steelequivalents.com/es/materiales/uns.md fr: https://steelequivalents.com/fr/matériaux/uns.md hu: https://steelequivalents.com/hu/anyagok/uns.md it: https://steelequivalents.com/it/materiali/uns.md nl: https://steelequivalents.com/nl/materialen/uns.md pl: https://steelequivalents.com/pl/materiały/uns.md pt: https://steelequivalents.com/pt/materiais/uns.md ru: https://steelequivalents.com/ru/материалы/uns.md tr: https://steelequivalents.com/tr/malzemeler/uns.md zh: https://steelequivalents.com/zh/材料/uns.md ja: https://steelequivalents.com/ja/材料/uns.md ar: https://steelequivalents.com/ar/المواد/uns.md ko: https://steelequivalents.com/ko/재료/uns.md pt-br: https://steelequivalents.com/pt-br/materiais/uns.md hi: https://steelequivalents.com/hi/सामग्री/uns.md content_hash: sha256:c7e1738e213bfecd0074b130e571c179f94e1f79353daea0a8b93cd7f79bbbc8 generated: 2026-09-22 --- > **Machine-readable Markdown rendering.** This is a Markdown representation of a web page, > served for AI agents and crawlers as a token-efficient alternative to the full HTML. > Full interactive HTML version: https://steelequivalents.com/materials/uns/page/4 > Canonical URL: https://steelequivalents.com/materials/uns/page/4 > Available languages: en, cs, de, es, fr, hu, it, nl, pl, pt, ru, tr, zh, ja, ar, ko, pt-br, hi > Change detection: `content_hash` is the SHA-256 of this document's Markdown body — everything > below this block, whitespace-trimmed, excluding the front-matter. Compare it to detect a real > content change; `generated` moves on every render and is not a change signal. UNS · 2,038 grades # UNS steel grades — 2038 designations — Page 4 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. 5 of 50 rows differ and carry an “Indicative” mark. ## Also known as 2038 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [G10400](/materials/uns/g10400 "G10400") | [1.1153](/materials/material-no/1.1153 "1.1153") | Quenched and tempered steels | 0.38–0.42 | 6 | | [G10400](/materials/uns/g10400 "G10400") | [1.1186](/materials/material-no/1.1186 "1.1186") | Quenched and tempered steels | 0.37–0.44 | 16 | | [G10400](/materials/uns/g10400 "G10400") | [1.1189](/materials/material-no/1.1189 "1.1189") | Quenched and tempered steels | 0.37–0.44 | 8 | | [G10400](/materials/uns/g10400 "G10400") | [1.9502](/materials/material-no/1.9502 "1.9502") | Quenched and tempered steels | 0.37–0.44 | 5 | | [G10420](/materials/uns/g10420 "G10420") | [1.0541](/materials/material-no/1.0541 "1.0541") | Quenched and tempered steels | 0.4–45 | 2 | | [G10420](/materials/uns/g10420 "G10420") | [1.1154](/materials/material-no/1.1154 "1.1154") | Quenched and tempered steels | 0.4–0.44 | 2 | | [G10420](/materials/uns/g10420 "G10420") | [1.1162](/materials/material-no/1.1162 "1.1162") | Quenched and tempered steels | 0.44–0.48 | 2 | | [G10420](/materials/uns/g10420 "G10420") | [1.1191](/materials/material-no/1.1191 "1.1191") | Quenched and tempered steels | 0.42–0.5 | 21 | | [G10420](/materials/uns/g10420 "G10420") | [1.9503](/materials/material-no/1.9503 "1.9503") | Quenched and tempered steels | 0.4–0.47 | 2 | | [G10430](/materials/uns/g10430 "G10430") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [G10430](/materials/uns/g10430 "G10430") | [1.0541](/materials/material-no/1.0541 "1.0541") | Quenched and tempered steels | 0.4–45 | 2 | | [G10430](/materials/uns/g10430 "G10430") | [1.1154](/materials/material-no/1.1154 "1.1154") | Quenched and tempered steels | 0.4–0.44 | 2 | | [G10430](/materials/uns/g10430 "G10430") | [1.9503](/materials/material-no/1.9503 "1.9503") | Quenched and tempered steels | 0.4–0.47 | 1 | | [G10450](/materials/uns/g10450 "G10450") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [G10450](/materials/uns/g10450 "G10450") | [1.1191](/materials/material-no/1.1191 "1.1191") | Quenched and tempered steels | 0.42–0.5 | 21 | | [G10450](/materials/uns/g10450 "G10450") | [1.1193](/materials/material-no/1.1193 "1.1193") | Steels for surface hardening | 0.43–0.49 | 3 | | [G10450](/materials/uns/g10450 "G10450") | [1.1201](/materials/material-no/1.1201 "1.1201") | Quenched and tempered steels | 0.42–0.5 | 11 | | [G10450](/materials/uns/g10450 "G10450") | [1.1730](/materials/material-no/1.1730 "1.1730") | Unalloyed tool steels / carbon steels | 0.42–0.5 | 14 | | [G10450](/materials/uns/g10450 "G10450") | [1.9504](/materials/material-no/1.9504 "1.9504") | Others | 0.43–0.5 | 3 | | [G10450](/materials/uns/g10450 "G10450") Indicative | [1.1191](/materials/material-no/1.1191 "1.1191") | Others | 0.42–0.5 | 18 | | [G10460](/materials/uns/g10460 "G10460") | [1.9504](/materials/material-no/1.9504 "1.9504") | Others | 0.43–0.5 | 1 | | [G10490](/materials/uns/g10490 "G10490") | [1.0540](/materials/material-no/1.0540 "1.0540") | Quenched and tempered steels | 0.47–0.55 | 13 | | [G10490](/materials/uns/g10490 "G10490") | [1.1171](/materials/material-no/1.1171 "1.1171") | Others | 0.48–0.52 | 6 | | [G10490](/materials/uns/g10490 "G10490") | [1.1201](/materials/material-no/1.1201 "1.1201") | Quenched and tempered steels | 0.42–0.5 | 11 | | [G10490](/materials/uns/g10490 "G10490") | [1.1206](/materials/material-no/1.1206 "1.1206") | Quenched and tempered steels | 0.47–0.55 | 17 | | [G10490](/materials/uns/g10490 "G10490") | [1.9505](/materials/material-no/1.9505 "1.9505") | Others | 0.46–0.53 | 6 | | [G10500](/materials/uns/g10500 "G10500") | [1.0540](/materials/material-no/1.0540 "1.0540") | Quenched and tempered steels | 0.47–0.55 | 13 | | [G10500](/materials/uns/g10500 "G10500") | [1.0586](/materials/material-no/1.0586 "1.0586") | Steels for surface hardening | 0.48–0.53 | 7 | | [G10500](/materials/uns/g10500 "G10500") | [1.1206](/materials/material-no/1.1206 "1.1206") | Quenched and tempered steels | 0.47–0.55 | 17 | | [G10500](/materials/uns/g10500 "G10500") | [1.1213](/materials/material-no/1.1213 "1.1213") | Steels for surface hardening | 0.5–0.57 | 11 | | [G10500](/materials/uns/g10500 "G10500") | [1.1241](/materials/material-no/1.1241 "1.1241") | Steels for surface hardening | 0.47–0.55 | 8 | | [G10500](/materials/uns/g10500 "G10500") | [1.9505](/materials/material-no/1.9505 "1.9505") | Steels for surface hardening | 0.48–0.55 | 6 | | [G10500](/materials/uns/g10500 "G10500") Indicative | [1.1210](/materials/material-no/1.1210 "1.1210") | Steels for surface hardening | 0.5–0.57 | 8 | | [G10550](/materials/uns/g10550 "G10550") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [G10550](/materials/uns/g10550 "G10550") | [1.1203](/materials/material-no/1.1203 "1.1203") | Quenched and tempered steels | 0.52–0.6 | 15 | | [G10550](/materials/uns/g10550 "G10550") | [1.1204](/materials/material-no/1.1204 "1.1204") | Others | 0.52–0.6 | 5 | | [G10550](/materials/uns/g10550 "G10550") | [1.1209](/materials/material-no/1.1209 "1.1209") | Others | 0.52–0.6 | 8 | | [G10550](/materials/uns/g10550 "G10550") | [1.1213](/materials/material-no/1.1213 "1.1213") | Steels for surface hardening | 0.5–0.57 | 11 | | [G10550](/materials/uns/g10550 "G10550") | [1.1220](/materials/material-no/1.1220 "1.1220") | Others | 0.54–0.58 | 2 | | [G10550](/materials/uns/g10550 "G10550") | [1.9518](/materials/material-no/1.9518 "1.9518") | Others | 0.5–0.6 | 2 | | [G10550](/materials/uns/g10550 "G10550") Indicative | [1.1206](/materials/material-no/1.1206 "1.1206") | Quenched and tempered steels | 0.47–0.55 | 17 | | [G10550](/materials/uns/g10550 "G10550") Indicative | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [G10550](/materials/uns/g10550 "G10550") Indicative | [1.1221](/materials/material-no/1.1221 "1.1221") | Quenched and tempered steels | 0.57–0.65 | 18 | | [G10590](/materials/uns/g10590 "G10590") | [1.1212](/materials/material-no/1.1212 "1.1212") | Others | 0.56–0.6 | 5 | | [G10590](/materials/uns/g10590 "G10590") | [1.1228](/materials/material-no/1.1228 "1.1228") | Others | 0.58–0.62 | 5 | | [G10600](/materials/uns/g10600 "G10600") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [G10600](/materials/uns/g10600 "G10600") | [1.0609](/materials/material-no/1.0609 "1.0609") | Quenched and tempered steels | 0.55–0.6 | 2 | | [G10600](/materials/uns/g10600 "G10600") | [1.0610](/materials/material-no/1.0610 "1.0610") | Quenched and tempered steels | 0.58–0.63 | 2 | | [G10600](/materials/uns/g10600 "G10600") | [1.1211](/materials/material-no/1.1211 "1.1211") | Spring steels | 0.57–0.65 | 5 | | [G10600](/materials/uns/g10600 "G10600") | [1.1221](/materials/material-no/1.1221 "1.1221") | Quenched and tempered steels | 0.57–0.65 | 18 | **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. [Previous](/materials/uns/page/3 "Previous") Page 4 of 41[Next](/materials/uns/page/5 "Next")