--- title: "SS steel grades — 373 designations — Page 2" description: "Steel grades designated under SS, with chemical composition, mechanical properties and equivalents in other standards. 373 designations across 242…" canonical: https://steelequivalents.com/materials/ss/page/2 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/ss/page/2.md cs: https://steelequivalents.com/cs/materiály/ss.md de: https://steelequivalents.com/de/werkstoffe/ss.md es: https://steelequivalents.com/es/materiales/ss.md fr: https://steelequivalents.com/fr/matériaux/ss.md hu: https://steelequivalents.com/hu/anyagok/ss.md it: https://steelequivalents.com/it/materiali/ss.md nl: https://steelequivalents.com/nl/materialen/ss.md pl: https://steelequivalents.com/pl/materiały/ss.md pt: https://steelequivalents.com/pt/materiais/ss.md ru: https://steelequivalents.com/ru/материалы/ss.md tr: https://steelequivalents.com/tr/malzemeler/ss.md zh: https://steelequivalents.com/zh/材料/ss.md ja: https://steelequivalents.com/ja/材料/ss.md ar: https://steelequivalents.com/ar/المواد/ss.md ko: https://steelequivalents.com/ko/재료/ss.md pt-br: https://steelequivalents.com/pt-br/materiais/ss.md hi: https://steelequivalents.com/hi/सामग्री/ss.md content_hash: sha256:67243328e27da1f7b736949ca0caf5be53ab83c854597771f3cba963cabc2ca3 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/ss/page/2 > Canonical URL: https://steelequivalents.com/materials/ss/page/2 > 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. SS · 373 grades # SS steel grades — 373 designations — Page 2 Every grade designated under SS, 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 373 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [1311](/materials/gost/1311 "1311") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [1311](/materials/gost/1311 "1311") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | | [1312](/materials/gost/1312 "1312") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | | [1312](/materials/gost/1312 "1312") | [1.0114](/materials/material-no/1.0114 "1.0114") | Unalloyed structural steels | ≤ 0.17 | 21 | | [1312](/materials/gost/1312 "1312") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [1312](/materials/gost/1312 "1312") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [1312](/materials/gost/1312 "1312") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [1312-00](/materials/ss/1312-00 "1312-00") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [1313](/materials/gost/1313 "1313") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [1313](/materials/gost/1313 "1313") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [1313](/materials/gost/1313 "1313") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [1313](/materials/gost/1313 "1313") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | | [1313](/materials/gost/1313 "1313") | [1.0116](/materials/material-no/1.0116 "1.0116") | Unalloyed structural steels | ≤ 0.17 | 12 | | [1330](/materials/aisi-sae/1330 "1330") | [1.0345](/materials/material-no/1.0345 "1.0345") | Heat-resistant structural steels | ≤ 0.16 | 18 | | [1330](/materials/aisi-sae/1330 "1330") | [1.8945](/materials/material-no/1.8945 "1.8945") | Weathering steels | ≤ 0.12 | 16 | | [1330-01](/materials/ss/1330-01 "1330-01") | [1.0345](/materials/material-no/1.0345 "1.0345") | Heat-resistant structural steels | ≤ 0.16 | 18 | | [1332](/materials/ss/1332 "1332") | [1.8945](/materials/material-no/1.8945 "1.8945") | Weathering steels | ≤ 0.12 | 16 | | [1350](/materials/ss/1350 "1350") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [1370](/materials/ss/1370 "1370") | [1.1140](/materials/material-no/1.1140 "1.1140") | Case hardening steels | 0.12–0.18 | 7 | | [1370](/materials/ss/1370 "1370") | [1.1141](/materials/material-no/1.1141 "1.1141") | Case hardening steels | 0.12–0.18 | 20 | | [1370](/materials/ss/1370 "1370") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [1411](/materials/gost/1411 "1411") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [1411](/materials/gost/1411 "1411") | [1.0144](/materials/material-no/1.0144 "1.0144") | Unalloyed structural steels | ≤ 0.18 | 22 | | [1412](/materials/gost/1412 "1412") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [1412](/materials/gost/1412 "1412") | [1.0144](/materials/material-no/1.0144 "1.0144") | Unalloyed structural steels | ≤ 0.18 | 22 | | [1414](/materials/ss/1414 "1414") | [1.0144](/materials/material-no/1.0144 "1.0144") | Unalloyed structural steels | ≤ 0.18 | 22 | | [1414](/materials/ss/1414 "1414") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [1414-00](/materials/ss/1414-00 "1414-00") | [1.0144](/materials/material-no/1.0144 "1.0144") | Unalloyed structural steels | ≤ 0.18 | 22 | | [1414-01](/materials/ss/1414-01 "1414-01") | [1.0145](/materials/material-no/1.0145 "1.0145") | Unalloyed structural steels | ≤ 0.18 | 8 | | [1430](/materials/ss/1430 "1430") | [1.0425](/materials/material-no/1.0425 "1.0425") | Heat-resistant structural steels | ≤ 0.2 | 20 | | [1430](/materials/ss/1430 "1430") | [1.0426](/materials/material-no/1.0426 "1.0426") | Aging resistant steels | 0.08–0.2 | 17 | | [1431](/materials/ss/1431 "1431") | [1.0425](/materials/material-no/1.0425 "1.0425") | Heat-resistant structural steels | ≤ 0.2 | 20 | | [1431](/materials/ss/1431 "1431") | [1.0426](/materials/material-no/1.0426 "1.0426") | Aging resistant steels | 0.08–0.2 | 17 | | [1432](/materials/ss/1432 "1432") | [1.0426](/materials/material-no/1.0426 "1.0426") | Aging resistant steels | 0.08–0.2 | 17 | | [1432](/materials/ss/1432 "1432") | [1.0425](/materials/material-no/1.0425 "1.0425") | Heat-resistant structural steels | ≤ 0.2 | 20 | | [1450](/materials/ss/1450 "1450") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [1450](/materials/ss/1450 "1450") | [1.0406](/materials/material-no/1.0406 "1.0406") | Quenched and tempered steels | 0.22–0.29 | 20 | | [1505](/materials/ss/1505 "1505") | [1.0551](/materials/material-no/1.0551 "1.0551") | Unalloyed structural steels | ≤ 0.24 | 10 | | [1550](/materials/ss/1550 "1550") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [1550](/materials/ss/1550 "1550") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [1550](/materials/ss/1550 "1550") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [1550-00](/materials/ss/1550-00 "1550-00") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [1550-00](/materials/ss/1550-00 "1550-00") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [1550-01](/materials/ss/1550-01 "1550-01") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [1550-01](/materials/ss/1550-01 "1550-01") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [1555](/materials/ss/1555 "1555") | [1.0511](/materials/material-no/1.0511 "1.0511") | Quenched and tempered steels | 0.37–0.44 | 21 | | [1572](/materials/gost/1572 "1572") | [1.1181](/materials/material-no/1.1181 "1.1181") | Quenched and tempered steels | 0.32–0.39 | 20 | | [1572](/materials/gost/1572 "1572") | [1.1183](/materials/material-no/1.1183 "1.1183") | Steels for surface hardening | 0.33–0.39 | 7 | | [1572](/materials/gost/1572 "1572") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [1572](/materials/gost/1572 "1572") | [1.1180](/materials/material-no/1.1180 "1.1180") | Quenched and tempered steels | 0.32–0.39 | 11 | **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/ss "Previous") Page 2 of 8[Next](/materials/ss/page/3 "Next")