UNS · 2,038 grades

UNS steel grades — 2038 designations — Page 7

Every grade designated under UNS, 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. 15 of 50 rows differ and carry an “Indicative” mark.

Also known as

2038 designations

Grade	Material no.	Category	C% by weight	Also inother standards
G15410	1.1127	Quenched and tempered steels	0.34–0.42	6
G15410	1.1167	Quenched and tempered steels	0.32–0.4	17
G15480	1.1226	Others	0.47–0.55	2
G15520	1.1226	Others	0.47–0.55	2
G15660	1.1260	Others	0.6–0.71	7
G15660 Indicative	1.1240	Others	0.6–0.7	10
G31400	1.5711	Others	0.38–0.43	8
G33106	1.5752	Case hardening steels	0.14–0.2	15
G33106	1.5752	Case hardening steels	0.14–0.2	15
G41180	1.7321	Case hardening steels	0.17–0.23	4
G41210	1.7319	Case hardening steels	0.17–0.23	2
G41210	1.7320	Case hardening steels	0.17–0.23	2
G41300 Indicative	1.7214	Special steels for aviation and aerospace	0.22–0.29	9
G41300	1.7216	Low-temperature structural steels	0.27–0.34	9
G41300 Indicative	1.7220	Quenched and tempered steels	0.3–0.37	24
G41300 Indicative	1.7218	Quenched and tempered steels	0.22–0.29	25
G41350	1.7220	Quenched and tempered steels	0.3–0.37	24
G41350	1.7226	Others	0.3–0.37	9
G41350 Indicative	1.2330	Others	0.32–0.37	8
G41370	1.7220	Quenched and tempered steels	0.3–0.37	24
G41400	1.7225	Quenched and tempered steels	0.38–0.45	25
G41400	1.7227	Quenched and tempered steels	0.38–0.45	15
G41420	1.7223	Steels for surface hardening	0.38–0.44	13
G41420	1.7225	Quenched and tempered steels	0.38–0.45	25
G4145 Indicative	1.7225	Quenched and tempered steels	0.38–0.45	25
G4145 Indicative	1.7227	Quenched and tempered steels	0.38–0.45	15
G41450	1.7225	Quenched and tempered steels	0.38–0.45	25
G41470	1.7228	Quenched and tempered steels	0.46–0.54	12
G41500	1.7228	Quenched and tempered steels	0.46–0.54	12
G41500	1.7701	Spring steels	0.48–0.56	3
G41610	1.7241	Others	0.56–0.64	4
G43200	1.5919	Case hardening steels	0.12–0.18	11
G43370	1.6562	Quenched and tempered steels	0.37–0.44	10
G43370	1.6944	Special steels for aviation and aerospace	0.35–0.4	2
G43376	1.6562	Quenched and tempered steels	0.37–0.44	10
G43376	1.6944	Special steels for aviation and aerospace	0.35–0.4	2
G43400 Indicative	1.6511	Quenched and tempered steels	0.32–0.4	18
G43400 Indicative	1.6565	Quenched and tempered steels	0.35–0.45	15
G43400 Indicative	1.6580	Quenched and tempered steels	0.26–0.34	15
G43400 Indicative	1.6582	Quenched and tempered steels	0.3–0.38	25
G43406 Indicative	1.6562	Quenched and tempered steels	0.37–0.44	10
G43406 Indicative	1.7707	Quenched and tempered steels	0.26–0.34	8
G44190	1.5423	Heat-resistant structural steels	0.12–0.2	5
G44220	1.5419	Heat-resistant structural steels	0.15–0.23	2
G45200	1.5423	Heat-resistant structural steels	0.12–0.2	5
G46150	1.7016	Case hardening steels	0.14–0.2	11
G46170	1.5919	Case hardening steels	0.12–0.18	11
G46200 Indicative	1.7225	Quenched and tempered steels	0.38–0.45	25
G47180	1.6755	Quenched and tempered steels	0.17–0.27	2
G48200 Indicative	1.6587	Case hardening steels	0.15–0.21	15

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.