--- title: "UNS steel grades — 2038 designations — Page 7" 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/7 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/uns/page/7.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: sha256:897d44d654cc15f6068d8031780dae942bddc470f80dbd6dd15a93af6ea0bb3f generated: 2026-09-25 --- > **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/7 > Canonical URL: https://steelequivalents.com/materials/uns/page/7 > 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 7 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. 15 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 | |---|---|---|---|---| | [G15410](/materials/uns/g15410 "G15410") | [1.1127](/materials/material-no/1.1127 "1.1127") | Quenched and tempered steels | 0.34–0.42 | 6 | | [G15410](/materials/uns/g15410 "G15410") | [1.1167](/materials/material-no/1.1167 "1.1167") | Quenched and tempered steels | 0.32–0.4 | 17 | | [G15480](/materials/uns/g15480 "G15480") | [1.1226](/materials/material-no/1.1226 "1.1226") | Others | 0.47–0.55 | 2 | | [G15520](/materials/uns/g15520 "G15520") | [1.1226](/materials/material-no/1.1226 "1.1226") | Others | 0.47–0.55 | 2 | | [G15660](/materials/uns/g15660 "G15660") | [1.1260](/materials/material-no/1.1260 "1.1260") | Others | 0.6–0.71 | 7 | | [G15660](/materials/uns/g15660 "G15660") Indicative | [1.1240](/materials/material-no/1.1240 "1.1240") | Others | 0.6–0.7 | 10 | | [G31400](/materials/uns/g31400 "G31400") | [1.5711](/materials/material-no/1.5711 "1.5711") | Others | 0.38–0.43 | 8 | | [G33106](/materials/uns/g33106 "G33106") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [G33106](/materials/uns/g33106 "G33106") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [G41180](/materials/uns/g41180 "G41180") | [1.7321](/materials/material-no/1.7321 "1.7321") | Case hardening steels | 0.17–0.23 | 4 | | [G41210](/materials/uns/g41210 "G41210") | [1.7319](/materials/material-no/1.7319 "1.7319") | Case hardening steels | 0.17–0.23 | 2 | | [G41210](/materials/uns/g41210 "G41210") | [1.7320](/materials/material-no/1.7320 "1.7320") | Case hardening steels | 0.17–0.23 | 2 | | [G41300](/materials/uns/g41300 "G41300") Indicative | [1.7214](/materials/material-no/1.7214 "1.7214") | Special steels for aviation and aerospace | 0.22–0.29 | 9 | | [G41300](/materials/uns/g41300 "G41300") | [1.7216](/materials/material-no/1.7216 "1.7216") | Low-temperature structural steels | 0.27–0.34 | 9 | | [G41300](/materials/uns/g41300 "G41300") Indicative | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [G41300](/materials/uns/g41300 "G41300") Indicative | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [G41350](/materials/uns/g41350 "G41350") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [G41350](/materials/uns/g41350 "G41350") | [1.7226](/materials/material-no/1.7226 "1.7226") | Others | 0.3–0.37 | 9 | | [G41350](/materials/uns/g41350 "G41350") Indicative | [1.2330](/materials/material-no/1.2330 "1.2330") | Others | 0.32–0.37 | 8 | | [G41370](/materials/uns/g41370 "G41370") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [G41400](/materials/uns/g41400 "G41400") | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [G41400](/materials/uns/g41400 "G41400") | [1.7227](/materials/material-no/1.7227 "1.7227") | Quenched and tempered steels | 0.38–0.45 | 15 | | [G41420](/materials/uns/g41420 "G41420") | [1.7223](/materials/material-no/1.7223 "1.7223") | Steels for surface hardening | 0.38–0.44 | 13 | | [G41420](/materials/uns/g41420 "G41420") | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [G4145](/materials/uns/g4145 "G4145") Indicative | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [G4145](/materials/uns/g4145 "G4145") Indicative | [1.7227](/materials/material-no/1.7227 "1.7227") | Quenched and tempered steels | 0.38–0.45 | 15 | | [G41450](/materials/uns/g41450 "G41450") | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [G41470](/materials/uns/g41470 "G41470") | [1.7228](/materials/material-no/1.7228 "1.7228") | Quenched and tempered steels | 0.46–0.54 | 12 | | [G41500](/materials/uns/g41500 "G41500") | [1.7228](/materials/material-no/1.7228 "1.7228") | Quenched and tempered steels | 0.46–0.54 | 12 | | [G41500](/materials/uns/g41500 "G41500") | [1.7701](/materials/material-no/1.7701 "1.7701") | Spring steels | 0.48–0.56 | 3 | | [G41610](/materials/uns/g41610 "G41610") | [1.7241](/materials/material-no/1.7241 "1.7241") | Others | 0.56–0.64 | 4 | | [G43200](/materials/uns/g43200 "G43200") | [1.5919](/materials/material-no/1.5919 "1.5919") | Case hardening steels | 0.12–0.18 | 11 | | [G43370](/materials/uns/g43370 "G43370") | [1.6562](/materials/material-no/1.6562 "1.6562") | Quenched and tempered steels | 0.37–0.44 | 10 | | [G43370](/materials/uns/g43370 "G43370") | [1.6944](/materials/material-no/1.6944 "1.6944") | Special steels for aviation and aerospace | 0.35–0.4 | 2 | | [G43376](/materials/uns/g43376 "G43376") | [1.6562](/materials/material-no/1.6562 "1.6562") | Quenched and tempered steels | 0.37–0.44 | 10 | | [G43376](/materials/uns/g43376 "G43376") | [1.6944](/materials/material-no/1.6944 "1.6944") | Special steels for aviation and aerospace | 0.35–0.4 | 2 | | [G43400](/materials/uns/g43400 "G43400") Indicative | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [G43400](/materials/uns/g43400 "G43400") Indicative | [1.6565](/materials/material-no/1.6565 "1.6565") | Quenched and tempered steels | 0.35–0.45 | 15 | | [G43400](/materials/uns/g43400 "G43400") Indicative | [1.6580](/materials/material-no/1.6580 "1.6580") | Quenched and tempered steels | 0.26–0.34 | 15 | | [G43400](/materials/uns/g43400 "G43400") Indicative | [1.6582](/materials/material-no/1.6582 "1.6582") | Quenched and tempered steels | 0.3–0.38 | 25 | | [G43406](/materials/uns/g43406 "G43406") Indicative | [1.6562](/materials/material-no/1.6562 "1.6562") | Quenched and tempered steels | 0.37–0.44 | 10 | | [G43406](/materials/uns/g43406 "G43406") Indicative | [1.7707](/materials/material-no/1.7707 "1.7707") | Quenched and tempered steels | 0.26–0.34 | 8 | | [G44190](/materials/uns/g44190 "G44190") | [1.5423](/materials/material-no/1.5423 "1.5423") | Heat-resistant structural steels | 0.12–0.2 | 5 | | [G44220](/materials/uns/g44220 "G44220") | [1.5419](/materials/material-no/1.5419 "1.5419") | Heat-resistant structural steels | 0.15–0.23 | 2 | | [G45200](/materials/uns/g45200 "G45200") | [1.5423](/materials/material-no/1.5423 "1.5423") | Heat-resistant structural steels | 0.12–0.2 | 5 | | [G46150](/materials/uns/g46150 "G46150") | [1.7016](/materials/material-no/1.7016 "1.7016") | Case hardening steels | 0.14–0.2 | 11 | | [G46170](/materials/uns/g46170 "G46170") | [1.5919](/materials/material-no/1.5919 "1.5919") | Case hardening steels | 0.12–0.18 | 11 | | [G46200](/materials/uns/g46200 "G46200") Indicative | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [G47180](/materials/uns/g47180 "G47180") | [1.6755](/materials/material-no/1.6755 "1.6755") | Quenched and tempered steels | 0.17–0.27 | 2 | | [G48200](/materials/uns/g48200 "G48200") Indicative | [1.6587](/materials/material-no/1.6587 "1.6587") | Case hardening steels | 0.15–0.21 | 15 | **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/6 "Previous") Page 7 of 41[Next](/materials/uns/page/8 "Next")