--- title: "SAE AMS steel grades — 768 designations — Page 15" description: "Steel grades designated under SAE AMS, with chemical composition, mechanical properties and equivalents in other standards. 768 designations across…" canonical: https://steelequivalents.com/materials/ams/page/15 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/ams/page/15.md cs: https://steelequivalents.com/cs/materiály/ams.md de: https://steelequivalents.com/de/werkstoffe/ams.md es: https://steelequivalents.com/es/materiales/ams.md fr: https://steelequivalents.com/fr/matériaux/ams.md hu: https://steelequivalents.com/hu/anyagok/ams.md it: https://steelequivalents.com/it/materiali/ams.md nl: https://steelequivalents.com/nl/materialen/ams.md pl: https://steelequivalents.com/pl/materiały/ams.md pt: https://steelequivalents.com/pt/materiais/ams.md ru: https://steelequivalents.com/ru/материалы/ams.md tr: https://steelequivalents.com/tr/malzemeler/ams.md zh: https://steelequivalents.com/zh/材料/ams.md ja: https://steelequivalents.com/ja/材料/ams.md ar: https://steelequivalents.com/ar/المواد/ams.md ko: https://steelequivalents.com/ko/재료/ams.md pt-br: https://steelequivalents.com/pt-br/materiais/ams.md hi: https://steelequivalents.com/hi/सामग्री/ams.md content_hash: sha256:c3c4826a55e54f86da7c5adf2d898d0fa2b4d7df3f66d7f1844d81b51e4b278d 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/ams/page/15 > Canonical URL: https://steelequivalents.com/materials/ams/page/15 > 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. SAE AMS · 768 grades # SAE AMS steel grades — 768 designations — Page 15 Every grade designated under SAE AMS, 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 indicative cross-reference, not an asserted identity — the grades are close, not interchangeable. 5 of 50 rows differ and carry a “This grade’s own name” mark. ## Also known as 768 designations Product form**All forms**[bar](/materials/ams/page/15?form=bar "bar")[sheet](/materials/ams/page/15?form=sheet "sheet")[plate](/materials/ams/page/15?form=plate "plate")[strip](/materials/ams/page/15?form=strip "strip")[tube](/materials/ams/page/15?form=tube "tube")[tubing](/materials/ams/page/15?form=tubing "tubing")[forging](/materials/ams/page/15?form=forging "forging")[wire](/materials/ams/page/15?form=wire "wire")[rod](/materials/ams/page/15?form=rod "rod")[ring](/materials/ams/page/15?form=ring "ring")[coil](/materials/ams/page/15?form=coil "coil")[extrusion](/materials/ams/page/15?form=extrusion "extrusion")[powder](/materials/ams/page/15?form=powder "powder") | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [6419](/materials/ams/6419 "6419") | — | — | — | 1 | | [6419](/materials/ams/6419 "6419") | [1.6928](/materials/material-no/1.6928 "1.6928") | Quenched and tempered steels | 0.38–0.45 | 3 | | [6425](/materials/ams/6425 "6425") | — | — | — | 2 | | [6427](/materials/ams/6427 "6427") bar forging tubing | — | — | — | 3 | | [6427](/materials/ams/6427 "6427") bar forging tubing | [1.2057](/materials/material-no/1.2057 "1.2057") | Tool steels for cold work | 1–1.1 | 4 | | [6431](/materials/ams/6431 "6431") | [1.8509](/materials/material-no/1.8509 "1.8509") | Nitriding steels | 0.38–0.45 | 16 | | [6440](/materials/ams/6440 "6440") bar | [1.2057](/materials/material-no/1.2057 "1.2057") | Tool steels for cold work | 1–1.1 | 4 | | [6440](/materials/ams/6440 "6440") bar | [1.2067](/materials/material-no/1.2067 "1.2067") | Tool steels for cold work | 0.95–1.1 | 21 | | [6440](/materials/ams/6440 "6440") bar | [1.3505](/materials/material-no/1.3505 "1.3505") | Bearing steels | 0.93–1.05 | 22 | | [6444](/materials/ams/6444 "6444") bar | [1.2057](/materials/material-no/1.2057 "1.2057") | Tool steels for cold work | 1–1.1 | 4 | | [6444](/materials/ams/6444 "6444") bar | [1.2067](/materials/material-no/1.2067 "1.2067") | Tool steels for cold work | 0.95–1.1 | 21 | | [6444](/materials/ams/6444 "6444") bar | [1.3505](/materials/material-no/1.3505 "1.3505") | Bearing steels | 0.93–1.05 | 22 | | [6448](/materials/ams/6448 "6448") | [1.2241](/materials/material-no/1.2241 "1.2241") | Tool steels for cold work | 0.47–0.55 | 9 | | [6448](/materials/ams/6448 "6448") | [1.8154](/materials/material-no/1.8154 "1.8154") | Special steels for aviation and aerospace | 0.47–0.55 | 3 | | [6448](/materials/ams/6448 "6448") | [1.8159](/materials/material-no/1.8159 "1.8159") | Quenched and tempered steels | 0.47–0.55 | 27 | | [6454](/materials/ams/6454 "6454") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [6454](/materials/ams/6454 "6454") | [1.6565](/materials/material-no/1.6565 "1.6565") | Quenched and tempered steels | 0.35–0.45 | 15 | | [6454](/materials/ams/6454 "6454") | [1.6580](/materials/material-no/1.6580 "1.6580") | Quenched and tempered steels | 0.26–0.34 | 15 | | [6454](/materials/ams/6454 "6454") | [1.6582](/materials/material-no/1.6582 "1.6582") | Quenched and tempered steels | 0.3–0.38 | 25 | | [6470](/materials/ams/6470 "6470") This grade’s own name bar | — | — | — | 1 | | [6470H](/materials/ams/6470h "6470H") This grade’s own name | [1.8509](/materials/material-no/1.8509 "1.8509") | Nitriding steels | 0.38–0.45 | 16 | | [6471](/materials/ams/6471 "6471") | — | — | — | 1 | | [6472](/materials/ams/6472 "6472") bar | — | — | — | 1 | | [6478](/materials/ams/6478 "6478") | — | — | — | 1 | | [6484](/materials/ams/6484 "6484") bar forging | [1.6562](/materials/material-no/1.6562 "1.6562") | Quenched and tempered steels | 0.37–0.44 | 10 | | [6484](/materials/ams/6484 "6484") bar forging | [1.7707](/materials/material-no/1.7707 "1.7707") | Quenched and tempered steels | 0.26–0.34 | 8 | | [6485](/materials/ams/6485 "6485") | [1.2343](/materials/material-no/1.2343 "1.2343") | Tool steels for hot work | 0.33–0.41 | 20 | | [6485](/materials/ams/6485 "6485") | [1.7783](/materials/material-no/1.7783 "1.7783") | Others | 0.38–0.43 | 3 | | [6487](/materials/ams/6487 "6487") | [1.2343](/materials/material-no/1.2343 "1.2343") | Tool steels for hot work | 0.33–0.41 | 20 | | [6487](/materials/ams/6487 "6487") | [1.7783](/materials/material-no/1.7783 "1.7783") | Others | 0.38–0.43 | 3 | | [6488](/materials/ams/6488 "6488") | [1.2343](/materials/material-no/1.2343 "1.2343") | Tool steels for hot work | 0.33–0.41 | 20 | | [6488](/materials/ams/6488 "6488") | [1.7783](/materials/material-no/1.7783 "1.7783") | Others | 0.38–0.43 | 3 | | [6490](/materials/ams/6490 "6490") | [1.3551](/materials/material-no/1.3551 "1.3551") | Bearing steels | 0.77–0.85 | 4 | | [6491](/materials/ams/6491 "6491") | [1.3551](/materials/material-no/1.3551 "1.3551") | Bearing steels | 0.77–0.85 | 4 | | [6512](/materials/ams/6512 "6512") bar forging | [1.6359](/materials/material-no/1.6359 "1.6359") | Special steels for aviation and aerospace | ≤ 0.03 | 3 | | [6514](/materials/ams/6514 "6514") This grade’s own name | — | — | — | — | | [6514](/materials/ams/6514 "6514") bar | [1.6358](/materials/material-no/1.6358 "1.6358") | Special steels for aviation and aerospace | ≤ 0.03 | 3 | | [6515](/materials/ams/6515 "6515") This grade’s own name | — | — | — | — | | [6520](/materials/ams/6520 "6520") | [1.6359](/materials/material-no/1.6359 "1.6359") | Special steels for aviation and aerospace | ≤ 0.03 | 3 | | [6521](/materials/ams/6521 "6521") | — | — | — | — | | [6521](/materials/ams/6521 "6521") plate sheet strip | [1.6358](/materials/material-no/1.6358 "1.6358") | Special steels for aviation and aerospace | ≤ 0.03 | 3 | | [6526](/materials/ams/6526 "6526") | [1.6974](/materials/material-no/1.6974 "1.6974") | Special steels for aviation and aerospace | 0.29–0.34 | 1 | | [6532](/materials/ams/6532 "6532") This grade’s own name bar forging | — | — | — | 1 | | [6693](/materials/ams/6693 "6693") | [1.4300](/materials/material-no/1.4300 "1.4300") | Stainless steels | ≤ 0.12 | 15 | | [6693](/materials/ams/6693 "6693") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [6693](/materials/ams/6693 "6693") | [1.4324](/materials/material-no/1.4324 "1.4324") | Special steels for aviation and aerospace | ≤ 0.12 | 7 | | [6693](/materials/ams/6693 "6693") | [1.4325](/materials/material-no/1.4325 "1.4325") | Stainless steels | 0.03–0.15 | 11 | | [7241](/materials/ams/7241 "7241") | [1.4300](/materials/material-no/1.4300 "1.4300") | Stainless steels | ≤ 0.12 | 15 | | [7241](/materials/ams/7241 "7241") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [7241](/materials/ams/7241 "7241") | [1.4324](/materials/material-no/1.4324 "1.4324") | Special steels for aviation and aerospace | ≤ 0.12 | 7 | **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/ams/page/14 "Previous") Page 15 of 16[Next](/materials/ams/page/16 "Next")