--- title: "STAS steel grades — 203 designations" description: "Steel grades designated under STAS, with chemical composition, mechanical properties and equivalents in other standards. 203 designations across 142…" canonical: https://steelequivalents.com/materials/stas language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/stas.md cs: https://steelequivalents.com/cs/materiály/stas.md de: https://steelequivalents.com/de/werkstoffe/stas.md es: https://steelequivalents.com/es/materiales/stas.md fr: https://steelequivalents.com/fr/matériaux/stas.md hu: https://steelequivalents.com/hu/anyagok/stas.md it: https://steelequivalents.com/it/materiali/stas.md nl: https://steelequivalents.com/nl/materialen/stas.md pl: https://steelequivalents.com/pl/materiały/stas.md pt: https://steelequivalents.com/pt/materiais/stas.md ru: https://steelequivalents.com/ru/материалы/stas.md tr: https://steelequivalents.com/tr/malzemeler/stas.md zh: https://steelequivalents.com/zh/材料/stas.md ja: https://steelequivalents.com/ja/材料/stas.md ar: https://steelequivalents.com/ar/المواد/stas.md ko: https://steelequivalents.com/ko/재료/stas.md pt-br: https://steelequivalents.com/pt-br/materiais/stas.md hi: https://steelequivalents.com/hi/सामग्री/stas.md content_hash: sha256:66c3673c20c603ec949449fe8ec45a0d6fa89179b6a303693c8185ebf24fee28 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/stas > Canonical URL: https://steelequivalents.com/materials/stas > 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. STAS · 203 grades # STAS steel grades — 203 designations Every grade designated under STAS, 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. Every name on this page is an indicative cross-reference, not an asserted identity: the grades are close, not interchangeable. Check the composition before you substitute. ## Also known as 203 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [105MnCrW11](/materials/stas/105mncrw11 "105MnCrW11") | [1.2419](/materials/material-no/1.2419 "1.2419") | Tool steels for cold work | 1–1.1 | 16 | | [10AlCr180](/materials/stas/10alcr180 "10AlCr180") | [1.4742](/materials/material-no/1.4742 "1.4742") | Heat resistant steels | ≤ 0.12 | 17 | | [10Cr130](/materials/stas/10cr130 "10Cr130") | [1.4006](/materials/material-no/1.4006 "1.4006") | Stainless steels | 0.08–0.15 | 26 | | [10CrMo10](/materials/stas/10crmo10 "10CrMo10") | [1.7380](/materials/material-no/1.7380 "1.7380") | Heat-resistant structural steels | 0.08–0.14 | 20 | | [10MoCr50](/materials/gb/10mocr50 "10MoCr50") | [1.7362](/materials/material-no/1.7362 "1.7362") | Hydrogen resistant steels | 0.1–0.15 | 13 | | [10TiNiCr180](/materials/stas/10tinicr180 "10TiNiCr180") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [12C130](/materials/stas/12c130 "12C130") | [1.4006](/materials/material-no/1.4006 "1.4006") | Stainless steels | 0.08–0.15 | 26 | | [12MoCr22](/materials/stas/12mocr22 "12MoCr22") | [1.7380](/materials/material-no/1.7380 "1.7380") | Heat-resistant structural steels | 0.08–0.14 | 20 | | [12NiCr250](/materials/stas/12nicr250 "12NiCr250") | [1.4845](/materials/material-no/1.4845 "1.4845") | Heat resistant steels | ≤ 0.1 | 21 | | [12SiCrNi360](/materials/stas/12sicrni360 "12SiCrNi360") | [1.4864](/materials/material-no/1.4864 "1.4864") | Heat resistant steels | ≤ 0.15 | 14 | | [12SiCrNi360](/materials/stas/12sicrni360 "12SiCrNi360") | [1.4886](/materials/material-no/1.4886 "1.4886") | Others | ≤ 0.15 | 11 | | [12SiCrNi360](/materials/stas/12sicrni360 "12SiCrNi360") | [1.4862](/materials/material-no/1.4862 "1.4862") | Heat resistant steels | ≤ 0.1 | 6 | | [12TiNiCr180](/materials/stas/12tinicr180 "12TiNiCr180") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [13CrNi30q](/materials/stas/13crni30q "13CrNi30q") | [1.5732](/materials/material-no/1.5732 "1.5732") | Case hardening steels | 0.1–0.17 | 13 | | [14CrMo4](/materials/stas/14crmo4 "14CrMo4") | [1.7262](/materials/material-no/1.7262 "1.7262") | Case hardening steels | 0.13–0.17 | 18 | | [14CrMo4](/materials/stas/14crmo4 "14CrMo4") | [1.7335](/materials/material-no/1.7335 "1.7335") | Heat-resistant structural steels | 0.08–0.18 | 22 | | [15Cr9q](/materials/stas/15cr9q "15Cr9q") | [1.7015](/materials/material-no/1.7015 "1.7015") | Case hardening steels | 0.12–0.18 | 15 | | [15SiNiCr200](/materials/stas/15sinicr200 "15SiNiCr200") | [1.4828](/materials/material-no/1.4828 "1.4828") | Heat resistant steels | ≤ 0.2 | 20 | | [15SiNiCr200](/materials/stas/15sinicr200 "15SiNiCr200") | [1.4833](/materials/material-no/1.4833 "1.4833") | Heat resistant steels | ≤ 0.15 | 15 | | [16SiMn4](/materials/stas/16simn4 "16SiMn4") | [1.0445](/materials/material-no/1.0445 "1.0445") | Higher strength steels | — | 12 | | [17MnCr10](/materials/stas/17mncr10 "17MnCr10") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [18CrNi20](/materials/stas/18crni20 "18CrNi20") | [1.5920](/materials/material-no/1.5920 "1.5920") | Case hardening steels | 0.15–0.2 | 6 | | [18MnCr10q](/materials/stas/18mncr10q "18MnCr10q") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [18MnCr11](/materials/stas/18mncr11 "18MnCr11") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [205Cr115](/materials/stas/205cr115 "205Cr115") | [1.2060](/materials/material-no/1.2060 "1.2060") | Tool steels for cold work | 1–1.1 | 15 | | [20MnCr12](/materials/stas/20mncr12 "20MnCr12") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [20MoCr130](/materials/stas/20mocr130 "20MoCr130") | [1.4120](/materials/material-no/1.4120 "1.4120") | Stainless steels | 0.17–0.22 | 3 | | [20MoCr130](/materials/stas/20mocr130 "20MoCr130") | [1.4120](/materials/material-no/1.4120 "1.4120") | Others | 0.17–0.22 | 2 | | [20MoCr130](/materials/stas/20mocr130 "20MoCr130") | [1.4921](/materials/material-no/1.4921 "1.4921") | High-temperature steels | 0.15–0.23 | 2 | | [21MoMnCr12](/materials/stas/21momncr12 "21MoMnCr12") | [1.7243](/materials/material-no/1.7243 "1.7243") | Case hardening steels | 0.15–0.21 | 12 | | [21MoMnCr12](/materials/stas/21momncr12 "21MoMnCr12") | [1.3566](/materials/material-no/1.3566 "1.3566") | Others | 0.12–0.18 | 8 | | [24 MoCrNiMn 15z](/materials/stas/24-mocrnimn-15z "24 MoCrNiMn 15z") | [1.6541](/materials/material-no/1.6541 "1.6541") | Quenched and tempered steels | 0.2–0.26 | 3 | | [24 MoCrNiMn 15z](/materials/stas/24-mocrnimn-15z "24 MoCrNiMn 15z") | [1.6540](/materials/material-no/1.6540 "1.6540") | Others | 0.2–0.26 | 4 | | [24 MoCrNiMn 15z](/materials/stas/24-mocrnimn-15z "24 MoCrNiMn 15z") | [1.6758](/materials/material-no/1.6758 "1.6758") | Quenched and tempered steels | 0.2–0.26 | 3 | | [26MoCr11](/materials/stas/26mocr11 "26MoCr11") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [26MoCr11](/materials/stas/26mocr11 "26MoCr11") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [2MoNiCr175](/materials/stas/2monicr175 "2MoNiCr175") | [1.4404](/materials/material-no/1.4404 "1.4404") | Stainless steels | ≤ 0.03 | 25 | | [2TiMoCr180](/materials/stas/2timocr180 "2TiMoCr180") | [1.4521](/materials/material-no/1.4521 "1.4521") | Stainless steels | ≤ 0.025 | 9 | | [2TiMoCr180](/materials/stas/2timocr180 "2TiMoCr180") | [1.4605](/materials/material-no/1.4605 "1.4605") | Heat resistant steels | ≤ 0.03 | 8 | | [2TiMoCr180](/materials/stas/2timocr180 "2TiMoCr180") | [1.4523](/materials/material-no/1.4523 "1.4523") | Others | ≤ 0.03 | 8 | | [2TiMoCr180](/materials/stas/2timocr180 "2TiMoCr180") | [1.4321](/materials/material-no/1.4321 "1.4321") | Others | ≤ 0.03 | 8 | | [30VCrW85](/materials/stas/30vcrw85 "30VCrW85") | [1.2581](/materials/material-no/1.2581 "1.2581") | Tool steels for hot work | 0.25–0.35 | 18 | | [31VCr5](/materials/stas/31vcr5 "31VCr5") | [1.2208](/materials/material-no/1.2208 "1.2208") | Tool steels for cold work | 0.28–0.35 | 4 | | [31VMoCr29](/materials/stas/31vmocr29 "31VMoCr29") | [1.2365](/materials/material-no/1.2365 "1.2365") | Tool steels for hot work | 0.28–0.35 | 18 | | [33MoCr11](/materials/stas/33mocr11 "33MoCr11") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [34MoCr11](/materials/stas/34mocr11 "34MoCr11") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [34MoCr11AS](/materials/stas/34mocr11as "34MoCr11AS") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [34MoCr11q](/materials/stas/34mocr11q "34MoCr11q") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [34MoCrNi15](/materials/stas/34mocrni15 "34MoCrNi15") | [1.6582](/materials/material-no/1.6582 "1.6582") | Quenched and tempered steels | 0.3–0.38 | 25 | | [34MoCrNi15q](/materials/stas/34mocrni15q "34MoCrNi15q") | [1.6582](/materials/material-no/1.6582 "1.6582") | Quenched and tempered steels | 0.3–0.38 | 25 | **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. Page 1 of 5[Next](/materials/stas/page/2 "Next")