--- title: "AISI / SAE steel grades — 2156 designations — Page 17" 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/17 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/aisi-sae/page/17.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: sha256:6fef8fb46fafc543c79aad76ddd5c6e0b76be2613e820cca9dbad90eccf5bf01 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/aisi-sae/page/17 > Canonical URL: https://steelequivalents.com/materials/aisi-sae/page/17 > 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 17 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 asserted identity — the same grade under this standard’s own designation. 21 of 50 rows differ and carry an “Indicative” mark. ## Also known as 2156 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [444](/materials/aisi-sae/444 "444") Indicative | [1.4523](/materials/material-no/1.4523 "1.4523") | Others | ≤ 0.03 | 8 | | [444](/materials/aisi-sae/444 "444") Indicative | [1.4321](/materials/material-no/1.4321 "1.4321") | Others | ≤ 0.03 | 8 | | [446](/materials/aisi-sae/446 "446") | [1.4749](/materials/material-no/1.4749 "1.4749") | Heat resistant steels | 0.15–0.2 | 10 | | [446](/materials/aisi-sae/446 "446") Indicative | [1.4773](/materials/material-no/1.4773 "1.4773") | Heat resistant steels | ≤ 0.09 | 4 | | [446](/materials/aisi-sae/446 "446") Indicative | [1.4762](/materials/material-no/1.4762 "1.4762") | Heat resistant steels | ≤ 0.12 | 12 | | [446](/materials/aisi-sae/446 "446") Indicative | [1.4746](/materials/material-no/1.4746 "1.4746") | Others | ≤ 0.12 | 8 | | [446-1](/materials/aisi-sae/446-1 "446-1") Indicative | [1.4749](/materials/material-no/1.4749 "1.4749") | Heat resistant steels | 0.15–0.2 | 10 | | [446Mo](/materials/aisi-sae/446mo "446Mo") Indicative | [1.4575](/materials/material-no/1.4575 "1.4575") | Stainless steels | ≤ 0.015 | 3 | | [446Mo](/materials/aisi-sae/446mo "446Mo") Indicative | [1.4750](/materials/material-no/1.4750 "1.4750") | Others | ≤ 0.03 | 3 | | [45006](/materials/aisi-sae/45006 "45006") Indicative | [EN-JM1140](/materials/material-no/en-jm1140 "EN-JM1140") | Others | — | 10 | | [4520](/materials/aisi-sae/4520 "4520") | [1.5423](/materials/material-no/1.5423 "1.5423") | Heat-resistant structural steels | 0.12–0.2 | 5 | | [4544](/materials/aisi-sae/4544 "4544") Indicative | [2.4360](/materials/material-no/2.4360 "2.4360") | Nickel and cobalt alloys | ≤ 0.15 | 7 | | [4615](/materials/aisi-sae/4615 "4615") | [1.7016](/materials/material-no/1.7016 "1.7016") | Case hardening steels | 0.14–0.2 | 11 | | [4617](/materials/aisi-sae/4617 "4617") | [1.5919](/materials/material-no/1.5919 "1.5919") | Case hardening steels | 0.12–0.18 | 11 | | [4620](/materials/aisi-sae/4620 "4620") Indicative | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [4676](/materials/aisi-sae/4676 "4676") Indicative | [2.4375](/materials/material-no/2.4375 "2.4375") | Nickel and cobalt alloys | ≤ 0.2 | 6 | | [4718](/materials/aisi-sae/4718 "4718") | [1.6755](/materials/material-no/1.6755 "1.6755") | Quenched and tempered steels | 0.17–0.27 | 2 | | [4718H](/materials/aisi-sae/4718h "4718H") | [1.6755](/materials/material-no/1.6755 "1.6755") | Quenched and tempered steels | 0.17–0.27 | 2 | | [4820](/materials/aisi-sae/4820 "4820") Indicative | [1.6587](/materials/material-no/1.6587 "1.6587") | Case hardening steels | 0.15–0.21 | 15 | | [4820](/materials/aisi-sae/4820 "4820") Indicative | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [4820](/materials/aisi-sae/4820 "4820") Indicative | [1.7149](/materials/material-no/1.7149 "1.7149") | Case hardening steels | 0.17–0.22 | 8 | | [501](/materials/aisi-sae/501 "501") | [1.7362](/materials/material-no/1.7362 "1.7362") | Hydrogen resistant steels | 0.1–0.15 | 13 | | [5015](/materials/aisi-sae/5015 "5015") | [1.7015](/materials/material-no/1.7015 "1.7015") | Case hardening steels | 0.12–0.18 | 15 | | [5015](/materials/aisi-sae/5015 "5015") | [1.7016](/materials/material-no/1.7016 "1.7016") | Case hardening steels | 0.14–0.2 | 11 | | [502](/materials/aisi-sae/502 "502") | [1.7362](/materials/material-no/1.7362 "1.7362") | Hydrogen resistant steels | 0.1–0.15 | 13 | | [503](/materials/aisi-sae/503 "503") | [1.7386](/materials/material-no/1.7386 "1.7386") | Hydrogen resistant steels | 0.08–0.15 | 6 | | [504](/materials/aisi-sae/504 "504") Indicative | [1.7386](/materials/material-no/1.7386 "1.7386") | Hydrogen resistant steels | 0.08–0.15 | 6 | | [5045](/materials/aisi-sae/5045 "5045") | [1.7006](/materials/material-no/1.7006 "1.7006") | Quenched and tempered steels | 0.42–0.5 | 5 | | [5046](/materials/aisi-sae/5046 "5046") | [1.7006](/materials/material-no/1.7006 "1.7006") | Quenched and tempered steels | 0.42–0.5 | 5 | | [5046H](/materials/aisi-sae/5046h "5046H") | [1.7002](/materials/material-no/1.7002 "1.7002") | Cold extrusion steels | 0.42–0.5 | 2 | | [50B40](/materials/aisi-sae/50b40 "50B40") | [1.7007](/materials/material-no/1.7007 "1.7007") | Others | 0.35–0.4 | 4 | | [50B40H](/materials/aisi-sae/50b40h "50B40H") | [1.7007](/materials/material-no/1.7007 "1.7007") | Others | 0.35–0.4 | 4 | | [50B40RH](/materials/aisi-sae/50b40rh "50B40RH") | [1.7007](/materials/material-no/1.7007 "1.7007") | Others | 0.35–0.4 | 4 | | [50B50](/materials/aisi-sae/50b50 "50B50") | [1.7138](/materials/material-no/1.7138 "1.7138") | Spring steels | 0.48–0.55 | 4 | | [50B50H](/materials/aisi-sae/50b50h "50B50H") | [1.7138](/materials/material-no/1.7138 "1.7138") | Spring steels | 0.48–0.55 | 4 | | [50B60](/materials/aisi-sae/50b60 "50B60") | [1.7137](/materials/material-no/1.7137 "1.7137") | Others | 0.56–0.64 | 2 | | [5115](/materials/aisi-sae/5115 "5115") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [5115](/materials/aisi-sae/5115 "5115") Indicative | [1.7015](/materials/material-no/1.7015 "1.7015") | Case hardening steels | 0.12–0.18 | 15 | | [5117](/materials/aisi-sae/5117 "5117") | [1.7016](/materials/material-no/1.7016 "1.7016") | Case hardening steels | 0.14–0.2 | 11 | | [5117](/materials/aisi-sae/5117 "5117") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [5117](/materials/aisi-sae/5117 "5117") | [1.7139](/materials/material-no/1.7139 "1.7139") | Case hardening steels | 0.14–0.19 | 11 | | [5117](/materials/aisi-sae/5117 "5117") Indicative | [1.7027](/materials/material-no/1.7027 "1.7027") | Case hardening steels | 0.17–0.23 | 12 | | [5120](/materials/aisi-sae/5120 "5120") | [1.3523](/materials/material-no/1.3523 "1.3523") | Case hardening steels | 0.17–0.22 | 8 | | [5120](/materials/aisi-sae/5120 "5120") | [1.7027](/materials/material-no/1.7027 "1.7027") | Case hardening steels | 0.17–0.23 | 12 | | [5120](/materials/aisi-sae/5120 "5120") | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [5120](/materials/aisi-sae/5120 "5120") Indicative | [1.0841](/materials/material-no/1.0841 "1.0841") | Unalloyed structural steels | — | 6 | | [5120](/materials/aisi-sae/5120 "5120") Indicative | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [5120H](/materials/aisi-sae/5120h "5120H") | [1.3523](/materials/material-no/1.3523 "1.3523") | Case hardening steels | 0.17–0.22 | 8 | | [5120H](/materials/aisi-sae/5120h "5120H") | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [5120H](/materials/aisi-sae/5120h "5120H") Indicative | [1.7027](/materials/material-no/1.7027 "1.7027") | Case hardening steels | 0.17–0.23 | 12 | **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/16 "Previous") Page 17 of 44[Next](/materials/aisi-sae/page/18 "Next")