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 inother standards
444 Indicative	1.4523	Others	≤ 0.03	8
444 Indicative	1.4321	Others	≤ 0.03	8
446	1.4749	Heat resistant steels	0.15–0.2	10
446 Indicative	1.4773	Heat resistant steels	≤ 0.09	4
446 Indicative	1.4762	Heat resistant steels	≤ 0.12	12
446 Indicative	1.4746	Others	≤ 0.12	8
446-1 Indicative	1.4749	Heat resistant steels	0.15–0.2	10
446Mo Indicative	1.4575	Stainless steels	≤ 0.015	3
446Mo Indicative	1.4750	Others	≤ 0.03	3
45006 Indicative	EN-JM1140	Others	—	10
4520	1.5423	Heat-resistant structural steels	0.12–0.2	5
4544 Indicative	2.4360	Nickel and cobalt alloys	≤ 0.15	7
4615	1.7016	Case hardening steels	0.14–0.2	11
4617	1.5919	Case hardening steels	0.12–0.18	11
4620 Indicative	1.7225	Quenched and tempered steels	0.38–0.45	25
4676 Indicative	2.4375	Nickel and cobalt alloys	≤ 0.2	6
4718	1.6755	Quenched and tempered steels	0.17–0.27	2
4718H	1.6755	Quenched and tempered steels	0.17–0.27	2
4820 Indicative	1.6587	Case hardening steels	0.15–0.21	15
4820 Indicative	1.7147	Case hardening steels	0.17–0.22	15
4820 Indicative	1.7149	Case hardening steels	0.17–0.22	8
501	1.7362	Hydrogen resistant steels	0.1–0.15	13
5015	1.7015	Case hardening steels	0.12–0.18	15
5015	1.7016	Case hardening steels	0.14–0.2	11
502	1.7362	Hydrogen resistant steels	0.1–0.15	13
503	1.7386	Hydrogen resistant steels	0.08–0.15	6
504 Indicative	1.7386	Hydrogen resistant steels	0.08–0.15	6
5045	1.7006	Quenched and tempered steels	0.42–0.5	5
5046	1.7006	Quenched and tempered steels	0.42–0.5	5
5046H	1.7002	Cold extrusion steels	0.42–0.5	2
50B40	1.7007	Others	0.35–0.4	4
50B40H	1.7007	Others	0.35–0.4	4
50B40RH	1.7007	Others	0.35–0.4	4
50B50	1.7138	Spring steels	0.48–0.55	4
50B50H	1.7138	Spring steels	0.48–0.55	4
50B60	1.7137	Others	0.56–0.64	2
5115	1.7131	Case hardening steels	0.14–0.19	24
5115 Indicative	1.7015	Case hardening steels	0.12–0.18	15
5117	1.7016	Case hardening steels	0.14–0.2	11
5117	1.7131	Case hardening steels	0.14–0.19	24
5117	1.7139	Case hardening steels	0.14–0.19	11
5117 Indicative	1.7027	Case hardening steels	0.17–0.23	12
5120	1.3523	Case hardening steels	0.17–0.22	8
5120	1.7027	Case hardening steels	0.17–0.23	12
5120	1.7147	Case hardening steels	0.17–0.22	15
5120 Indicative	1.0841	Unalloyed structural steels	—	6
5120 Indicative	1.7131	Case hardening steels	0.14–0.19	24
5120H	1.3523	Case hardening steels	0.17–0.22	8
5120H	1.7147	Case hardening steels	0.17–0.22	15
5120H Indicative	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.