--- title: "ASTM steel grades — 2441 designations — Page 21" description: "Steel grades designated under ASTM, with chemical composition, mechanical properties and equivalents in other standards. 2441 designations across…" canonical: https://steelequivalents.com/materials/astm/page/21 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/astm/page/21.md cs: https://steelequivalents.com/cs/materiály/astm.md de: https://steelequivalents.com/de/werkstoffe/astm.md es: https://steelequivalents.com/es/materiales/astm.md fr: https://steelequivalents.com/fr/matériaux/astm.md hu: https://steelequivalents.com/hu/anyagok/astm.md it: https://steelequivalents.com/it/materiali/astm.md nl: https://steelequivalents.com/nl/materialen/astm.md pl: https://steelequivalents.com/pl/materiały/astm.md pt: https://steelequivalents.com/pt/materiais/astm.md ru: https://steelequivalents.com/ru/материалы/astm.md tr: https://steelequivalents.com/tr/malzemeler/astm.md zh: https://steelequivalents.com/zh/材料/astm.md ja: https://steelequivalents.com/ja/材料/astm.md ar: https://steelequivalents.com/ar/المواد/astm.md ko: https://steelequivalents.com/ko/재료/astm.md pt-br: https://steelequivalents.com/pt-br/materiais/astm.md hi: https://steelequivalents.com/hi/सामग्री/astm.md content_hash: sha256:23a272bb40ce8580ed649cd7fe9bb405b6a707adc910197d46b80f845ef46bd0 generated: 2026-09-26 --- > **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/astm/page/21 > Canonical URL: https://steelequivalents.com/materials/astm/page/21 > 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. ASTM · 2,441 grades # ASTM steel grades — 2441 designations — Page 21 Every grade designated under ASTM, 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 2441 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [A409](/materials/astm/a409 "A409") | [1.4438](/materials/material-no/1.4438 "1.4438") | Stainless steels | ≤ 0.03 | 13 | | [A409](/materials/astm/a409 "A409") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [A409](/materials/astm/a409 "A409") | [1.4314](/materials/material-no/1.4314 "1.4314") | Special steels for aviation and aerospace | ≤ 0.07 | 4 | | [A409](/materials/astm/a409 "A409") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [A409](/materials/astm/a409 "A409") | [1.4307](/materials/material-no/1.4307 "1.4307") | Stainless steels | ≤ 0.03 | 14 | | [A409](/materials/astm/a409 "A409") | [1.4828](/materials/material-no/1.4828 "1.4828") | Heat resistant steels | ≤ 0.2 | 20 | | [A409](/materials/astm/a409 "A409") | [1.4833](/materials/material-no/1.4833 "1.4833") | Heat resistant steels | ≤ 0.15 | 15 | | [A409](/materials/astm/a409 "A409") | [1.4950](/materials/material-no/1.4950 "1.4950") | Heat resistant steels | 0.04–0.08 | 7 | | [A409](/materials/astm/a409 "A409") | [1.4335](/materials/material-no/1.4335 "1.4335") | Stainless steels | ≤ 0.02 | 9 | | [A409](/materials/astm/a409 "A409") | [1.4845](/materials/material-no/1.4845 "1.4845") | Heat resistant steels | ≤ 0.1 | 21 | | [A409](/materials/astm/a409 "A409") | [1.4951](/materials/material-no/1.4951 "1.4951") | Heat resistant steels | 0.04–0.08 | 8 | | [A409](/materials/astm/a409 "A409") | [1.4401](/materials/material-no/1.4401 "1.4401") | Stainless steels | ≤ 0.07 | 20 | | [A409](/materials/astm/a409 "A409") | [1.4436](/materials/material-no/1.4436 "1.4436") | Stainless steels | ≤ 0.05 | 19 | | [A409](/materials/astm/a409 "A409") | [1.4984](/materials/material-no/1.4984 "1.4984") | High-temperature steels / aviation variant | 0.04–0.1 | 4 | | [A409](/materials/astm/a409 "A409") | [1.4404](/materials/material-no/1.4404 "1.4404") | Stainless steels | ≤ 0.03 | 25 | | [A409](/materials/astm/a409 "A409") | [1.4432](/materials/material-no/1.4432 "1.4432") | Others | ≤ 0.03 | 11 | | [A409](/materials/astm/a409 "A409") | [1.4435](/materials/material-no/1.4435 "1.4435") | Stainless steels | ≤ 0.03 | 20 | | [A409](/materials/astm/a409 "A409") | [1.4445](/materials/material-no/1.4445 "1.4445") | Others | ≤ 0.08 | 6 | | [A409](/materials/astm/a409 "A409") | [1.4449](/materials/material-no/1.4449 "1.4449") | Stainless steels | ≤ 0.035 | 7 | | [A409](/materials/astm/a409 "A409") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [A409](/materials/astm/a409 "A409") | [1.4544](/materials/material-no/1.4544 "1.4544") | Special steels for aviation and aerospace | ≤ 0.08 | 6 | | [A409](/materials/astm/a409 "A409") | [1.4546](/materials/material-no/1.4546 "1.4546") | Special steels for aviation and aerospace | ≤ 0.08 | 5 | | [A409](/materials/astm/a409 "A409") | [1.4550](/materials/material-no/1.4550 "1.4550") | Stainless steels | ≤ 0.08 | 15 | | [A412](/materials/astm/a412 "A412") | [1.3964](/materials/material-no/1.3964 "1.3964") | Non-magnetic steels | ≤ 0.03 | 4 | | [A412](/materials/astm/a412 "A412") | — | — | — | 2 | | [A414 Gr F](/materials/astm/a414-gr-f "A414 Gr F") | [1.0481](/materials/material-no/1.0481 "1.0481") | Heat-resistant structural steels | 0.08–0.2 | 17 | | [A430](/materials/astm/a430 "A430") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [A430](/materials/astm/a430 "A430") | [1.4314](/materials/material-no/1.4314 "1.4314") | Special steels for aviation and aerospace | ≤ 0.07 | 4 | | [A430](/materials/astm/a430 "A430") | [1.4401](/materials/material-no/1.4401 "1.4401") | Stainless steels | ≤ 0.07 | 20 | | [A430](/materials/astm/a430 "A430") | [1.4436](/materials/material-no/1.4436 "1.4436") | Stainless steels | ≤ 0.05 | 19 | | [A430](/materials/astm/a430 "A430") | [1.4984](/materials/material-no/1.4984 "1.4984") | High-temperature steels / aviation variant | 0.04–0.1 | 4 | | [A430](/materials/astm/a430 "A430") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [A430](/materials/astm/a430 "A430") | [1.4544](/materials/material-no/1.4544 "1.4544") | Special steels for aviation and aerospace | ≤ 0.08 | 6 | | [A430](/materials/astm/a430 "A430") | [1.4546](/materials/material-no/1.4546 "1.4546") | Special steels for aviation and aerospace | ≤ 0.08 | 5 | | [A430](/materials/astm/a430 "A430") | [1.4550](/materials/material-no/1.4550 "1.4550") | Stainless steels | ≤ 0.08 | 15 | | [A453](/materials/astm/a453 "A453") | [1.2779](/materials/material-no/1.2779 "1.2779") | Tool steels for hot work | ≤ 0.08 | 4 | | [A453](/materials/astm/a453 "A453") | [1.4943](/materials/material-no/1.4943 "1.4943") | Special steels for aviation and aerospace | ≤ 0.06 | 4 | | [A453](/materials/astm/a453 "A453") | [1.4944](/materials/material-no/1.4944 "1.4944") | High-temperature steels / aviation variant | ≤ 0.08 | 4 | | [A453](/materials/astm/a453 "A453") | [1.4954](/materials/material-no/1.4954 "1.4954") | High-temperature steels | ≤ 0.08 | 3 | | [A453](/materials/astm/a453 "A453") | [1.4980](/materials/material-no/1.4980 "1.4980") | High-temperature steels | 0.03–0.08 | 8 | | [A463](/materials/astm/a463 "A463") | [1.4510](/materials/material-no/1.4510 "1.4510") | Stainless steels | ≤ 0.05 | 14 | | [A473](/materials/astm/a473 "A473") | [1.4438](/materials/material-no/1.4438 "1.4438") | Stainless steels | ≤ 0.03 | 13 | | [A473](/materials/astm/a473 "A473") | [1.4040](/materials/material-no/1.4040 "1.4040") | Others | 0.6–0.75 | 6 | | [A473](/materials/astm/a473 "A473") | [1.4109](/materials/material-no/1.4109 "1.4109") | Stainless steels | 0.6–0.75 | 10 | | [A473](/materials/astm/a473 "A473") | [1.4125](/materials/material-no/1.4125 "1.4125") | Stainless steels | 0.95–1.2 | 11 | | [A473](/materials/astm/a473 "A473") | [1.4372](/materials/material-no/1.4372 "1.4372") | Others | ≤ 0.15 | 10 | | [A473](/materials/astm/a473 "A473") | [1.3965](/materials/material-no/1.3965 "1.3965") | Non-magnetic steels | ≤ 0.1 | 9 | | [A473](/materials/astm/a473 "A473") | [1.4373](/materials/material-no/1.4373 "1.4373") | Non-magnetic steels | ≤ 0.15 | 13 | | [A473](/materials/astm/a473 "A473") | [1.4300](/materials/material-no/1.4300 "1.4300") | Stainless steels | ≤ 0.12 | 15 | | [A473](/materials/astm/a473 "A473") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 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/astm/page/20 "Previous") Page 21 of 49[Next](/materials/astm/page/22 "Next")