--- title: "AISI / SAE steel grades — 2156 designations — Page 38" description: "Steel grades designated under AISI / SAE, with chemical composition, mechanical properties and equivalents in other standards. 2156 designations…" canonical: https://steelequivalents.com/materials/aisi-sae/page/38 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/aisi-sae/page/38.md cs: https://steelequivalents.com/cs/materiály/aisi-sae.md de: https://steelequivalents.com/de/werkstoffe/aisi-sae.md es: https://steelequivalents.com/es/materiales/aisi-sae.md fr: https://steelequivalents.com/fr/matériaux/aisi-sae.md hu: https://steelequivalents.com/hu/anyagok/aisi-sae.md it: https://steelequivalents.com/it/materiali/aisi-sae.md nl: https://steelequivalents.com/nl/materialen/aisi-sae.md pl: https://steelequivalents.com/pl/materiały/aisi-sae.md pt: https://steelequivalents.com/pt/materiais/aisi-sae.md ru: https://steelequivalents.com/ru/материалы/aisi-sae.md tr: https://steelequivalents.com/tr/malzemeler/aisi-sae.md zh: https://steelequivalents.com/zh/材料/aisi-sae.md ja: https://steelequivalents.com/ja/材料/aisi-sae.md ar: https://steelequivalents.com/ar/المواد/aisi-sae.md ko: https://steelequivalents.com/ko/재료/aisi-sae.md pt-br: https://steelequivalents.com/pt-br/materiais/aisi-sae.md hi: https://steelequivalents.com/hi/सामग्री/aisi-sae.md content_hash: sha256:b8b77fe6fee95978bc82f2c378d9b4c3c4903ef118d2ad7768ac71e870c5c590 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/aisi-sae/page/38 > Canonical URL: https://steelequivalents.com/materials/aisi-sae/page/38 > 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. AISI / SAE · 2,156 grades # AISI / SAE steel grades — 2156 designations — Page 38 Every grade designated under AISI / SAE, 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. 7 of 50 rows differ and carry a “This grade’s own name” mark. ## Also known as 2156 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [M41](/materials/aisi-sae/m41 "M41") This grade’s own name | [1.3246](/materials/material-no/1.3246 "1.3246") | High-speed steels | 1.05–1.15 | 5 | | [M41](/materials/aisi-sae/m41 "M41") | [1.3243](/materials/material-no/1.3243 "1.3243") | High-speed steels | 0.87–0.95 | 19 | | [M42](/materials/aisi-sae/m42 "M42") This grade’s own name | [1.3247](/materials/material-no/1.3247 "1.3247") | High-speed steels | 1.05–1.15 | 14 | | [M47](/materials/aisi-sae/m47 "M47") | [1.3247](/materials/material-no/1.3247 "1.3247") | High-speed steels | 1.05–1.15 | 14 | | [M50](/materials/aisi-sae/m50 "M50") This grade’s own name | [1.3551](/materials/material-no/1.3551 "1.3551") | Bearing steels | 0.77–0.85 | 4 | | [M7](/materials/aisi-sae/m7 "M7") This grade’s own name | [1.3348](/materials/material-no/1.3348 "1.3348") | High-speed steels | 0.95–1.05 | 8 | | [MT309](/materials/aisi-sae/mt309 "MT309") | [1.4833](/materials/material-no/1.4833 "1.4833") | Heat resistant steels | ≤ 0.15 | 15 | | [MT309S](/materials/aisi-sae/mt309s "MT309S") | [1.4833](/materials/material-no/1.4833 "1.4833") | Heat resistant steels | ≤ 0.15 | 15 | | [MT405](/materials/aisi-sae/mt405 "MT405") | [1.4724](/materials/material-no/1.4724 "1.4724") | Heat resistant steels | ≤ 0.12 | 15 | | [N08002](/materials/uns/n08002 "N08002") | [1.4865](/materials/material-no/1.4865 "1.4865") | Heat-resistant cast steels | 0.3–0.5 | 5 | | [N08004](/materials/uns/n08004 "N08004") | [1.4865](/materials/material-no/1.4865 "1.4865") | Heat-resistant cast steels | 0.3–0.5 | 5 | | [N08005](/materials/uns/n08005 "N08005") | [1.4865](/materials/material-no/1.4865 "1.4865") | Heat-resistant cast steels | 0.3–0.5 | 5 | | [N08028](/materials/uns/n08028 "N08028") | [1.4563](/materials/material-no/1.4563 "1.4563") | Stainless steels | ≤ 0.02 | 5 | | [N08030](/materials/uns/n08030 "N08030") | [1.4865](/materials/material-no/1.4865 "1.4865") | Heat-resistant cast steels | 0.3–0.5 | 5 | | [N08151](/materials/uns/n08151 "N08151") | [1.4859](/materials/material-no/1.4859 "1.4859") | Heat-resistant cast steels | 0.05–0.15 | 4 | | [N08330](/materials/uns/n08330 "N08330") | [1.4864](/materials/material-no/1.4864 "1.4864") | Heat resistant steels | ≤ 0.15 | 14 | | [N08332](/materials/uns/n08332 "N08332") | [1.4876](/materials/material-no/1.4876 "1.4876") | Heat resistant steels | ≤ 0.12 | 12 | | [N08705](/materials/uns/n08705 "N08705") | [1.4857](/materials/material-no/1.4857 "1.4857") | Heat-resistant cast steels | 0.3–0.5 | 3 | | [N08800](/materials/uns/n08800 "N08800") | [1.4876](/materials/material-no/1.4876 "1.4876") | Heat resistant steels | ≤ 0.12 | 12 | | [N08810](/materials/uns/n08810 "N08810") | [1.4876](/materials/material-no/1.4876 "1.4876") | Heat resistant steels | ≤ 0.12 | 12 | | [N08811](/materials/uns/n08811 "N08811") | [1.4876](/materials/material-no/1.4876 "1.4876") | Heat resistant steels | ≤ 0.12 | 12 | | [N08811](/materials/uns/n08811 "N08811") | [1.4959](/materials/material-no/1.4959 "1.4959") | High-temperature steels | 0.05–0.1 | 6 | | [N08904](/materials/uns/n08904 "N08904") | [1.4539](/materials/material-no/1.4539 "1.4539") | Stainless steels | ≤ 0.02 | 10 | | [N08926](/materials/uns/n08926 "N08926") | [1.4529](/materials/material-no/1.4529 "1.4529") | Stainless steels | ≤ 0.02 | 3 | | [N1](/materials/aisi-sae/n1 "N1") | [1.0443](/materials/material-no/1.0443 "1.0443") | Others | ≤ 0.11 | 13 | | [No 20 B](/materials/aisi-sae/no-20-b "No 20 B") | [EN-JL1010](/materials/material-no/en-jl1010 "EN-JL1010") | Others | — | 16 | | [No 25 B](/materials/aisi-sae/no-25-b "No 25 B") | [EN-JL1020](/materials/material-no/en-jl1020 "EN-JL1020") | Others | — | 22 | | [No 30 B](/materials/aisi-sae/no-30-b "No 30 B") | [EN-JL1030](/materials/material-no/en-jl1030 "EN-JL1030") | Others | — | 22 | | [No 35 B](/materials/aisi-sae/no-35-b "No 35 B") | [EN-JL1040](/materials/material-no/en-jl1040 "EN-JL1040") | Others | — | 22 | | [No 45 B](/materials/aisi-sae/no-45-b "No 45 B") | [EN-JL1050](/materials/material-no/en-jl1050 "EN-JL1050") | Others | — | 22 | | [No 50 B](/materials/aisi-sae/no-50-b "No 50 B") | [EN-JL1060](/materials/material-no/en-jl1060 "EN-JL1060") | Others | — | 21 | | [No 55 B](/materials/aisi-sae/no-55-b "No 55 B") | — | — | — | 4 | | [No.20](/materials/aisi-sae/no-20 "No.20") | [EN-JL1010](/materials/material-no/en-jl1010 "EN-JL1010") | Others | — | 16 | | [No.25](/materials/aisi-sae/no-25 "No.25") | [EN-JL1020](/materials/material-no/en-jl1020 "EN-JL1020") | Others | — | 22 | | [No.30](/materials/aisi-sae/no-30 "No.30") | [EN-JL1030](/materials/material-no/en-jl1030 "EN-JL1030") | Others | — | 22 | | [No.35](/materials/aisi-sae/no-35 "No.35") | [EN-JL1040](/materials/material-no/en-jl1040 "EN-JL1040") | Others | — | 22 | | [No.45](/materials/aisi-sae/no-45 "No.45") | [EN-JL1050](/materials/material-no/en-jl1050 "EN-JL1050") | Others | — | 22 | | [NO8028](/materials/aisi-sae/no8028 "NO8028") | [1.4563](/materials/material-no/1.4563 "1.4563") | Stainless steels | ≤ 0.02 | 5 | | [NO8367](/materials/din-en/no8367 "NO8367") | [1.4529](/materials/material-no/1.4529 "1.4529") | Stainless steels | ≤ 0.02 | 3 | | [NO8904](/materials/aisi-sae/no8904 "NO8904") | [1.4539](/materials/material-no/1.4539 "1.4539") | Stainless steels | ≤ 0.02 | 10 | | [O 2](/materials/aisi-sae/o-2 "O 2") This grade’s own name | [1.2842](/materials/material-no/1.2842 "1.2842") | Tool steels for cold work | 0.85–0.95 | 14 | | [O1](/materials/aisi-sae/o1 "O1") This grade’s own name | [1.2510](/materials/material-no/1.2510 "1.2510") | Tool steels for cold work | 0.9–1.05 | 13 | | [O7](/materials/aisi-sae/o7 "O7") | [1.2419](/materials/material-no/1.2419 "1.2419") | Tool steels for cold work | 1–1.1 | 16 | | [P 6](/materials/aisi-sae/p-6 "P 6") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [P 6](/materials/aisi-sae/p-6 "P 6") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [P 6](/materials/aisi-sae/p-6 "P 6") | [1.2735](/materials/material-no/1.2735 "1.2735") | Tool steels for cold work | 0.1–0.17 | 2 | | [P20](/materials/aisi-sae/p20 "P20") This grade’s own name | [1.2330](/materials/material-no/1.2330 "1.2330") | Others | 0.32–0.37 | 8 | | [P20](/materials/aisi-sae/p20 "P20") | [1.2311](/materials/material-no/1.2311 "1.2311") | Tool steels for cold work | 0.35–0.45 | 12 | | [P20+S](/materials/aisi-sae/p20-s "P20+S") | [1.2312](/materials/material-no/1.2312 "1.2312") | Tool steels for cold work | 0.35–0.45 | 5 | | [P91](/materials/csn/p91 "P91") | [1.4903](/materials/material-no/1.4903 "1.4903") | High-temperature steels | 0.08–0.12 | 4 | **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/aisi-sae/page/37 "Previous") Page 38 of 44[Next](/materials/aisi-sae/page/39 "Next")