UNS · 2,038 grades

UNS steel grades — 2038 designations — Page 4

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. 5 of 50 rows differ and carry an “Indicative” mark.

Also known as

2038 designations

Grade	Material no.	Category	C% by weight	Also inother standards
G10400	1.1153	Quenched and tempered steels	0.38–0.42	6
G10400	1.1186	Quenched and tempered steels	0.37–0.44	16
G10400	1.1189	Quenched and tempered steels	0.37–0.44	8
G10400	1.9502	Quenched and tempered steels	0.37–0.44	5
G10420	1.0541	Quenched and tempered steels	0.4–45	2
G10420	1.1154	Quenched and tempered steels	0.4–0.44	2
G10420	1.1162	Quenched and tempered steels	0.44–0.48	2
G10420	1.1191	Quenched and tempered steels	0.42–0.5	21
G10420	1.9503	Quenched and tempered steels	0.4–0.47	2
G10430	1.0503	Quenched and tempered steels	0.42–0.5	24
G10430	1.0541	Quenched and tempered steels	0.4–45	2
G10430	1.1154	Quenched and tempered steels	0.4–0.44	2
G10430	1.9503	Quenched and tempered steels	0.4–0.47	1
G10450	1.0503	Quenched and tempered steels	0.42–0.5	24
G10450	1.1191	Quenched and tempered steels	0.42–0.5	21
G10450	1.1193	Steels for surface hardening	0.43–0.49	3
G10450	1.1201	Quenched and tempered steels	0.42–0.5	11
G10450	1.1730	Unalloyed tool steels / carbon steels	0.42–0.5	14
G10450	1.9504	Others	0.43–0.5	3
G10450 Indicative	1.1191	Others	0.42–0.5	18
G10460	1.9504	Others	0.43–0.5	1
G10490	1.0540	Quenched and tempered steels	0.47–0.55	13
G10490	1.1171	Others	0.48–0.52	6
G10490	1.1201	Quenched and tempered steels	0.42–0.5	11
G10490	1.1206	Quenched and tempered steels	0.47–0.55	17
G10490	1.9505	Others	0.46–0.53	6
G10500	1.0540	Quenched and tempered steels	0.47–0.55	13
G10500	1.0586	Steels for surface hardening	0.48–0.53	7
G10500	1.1206	Quenched and tempered steels	0.47–0.55	17
G10500	1.1213	Steels for surface hardening	0.5–0.57	11
G10500	1.1241	Steels for surface hardening	0.47–0.55	8
G10500	1.9505	Steels for surface hardening	0.48–0.55	6
G10500 Indicative	1.1210	Steels for surface hardening	0.5–0.57	8
G10550	1.0535	Quenched and tempered steels	0.52–0.6	21
G10550	1.1203	Quenched and tempered steels	0.52–0.6	15
G10550	1.1204	Others	0.52–0.6	5
G10550	1.1209	Others	0.52–0.6	8
G10550	1.1213	Steels for surface hardening	0.5–0.57	11
G10550	1.1220	Others	0.54–0.58	2
G10550	1.9518	Others	0.5–0.6	2
G10550 Indicative	1.1206	Quenched and tempered steels	0.47–0.55	17
G10550 Indicative	1.0601	Quenched and tempered steels	0.57–0.65	25
G10550 Indicative	1.1221	Quenched and tempered steels	0.57–0.65	18
G10590	1.1212	Others	0.56–0.6	5
G10590	1.1228	Others	0.58–0.62	5
G10600	1.0601	Quenched and tempered steels	0.57–0.65	25
G10600	1.0609	Quenched and tempered steels	0.55–0.6	2
G10600	1.0610	Quenched and tempered steels	0.58–0.63	2
G10600	1.1211	Spring steels	0.57–0.65	5
G10600	1.1221	Quenched and tempered steels	0.57–0.65	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.