AFNOR · 1,469 grades

AFNOR steel grades — 1469 designations — Page 20

Every grade designated under AFNOR, 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. Every name on this page is an indicative cross-reference, not an asserted identity: the grades are close, not interchangeable. Check the composition before you substitute.

Also known as

1469 designations

Grade	Material no.	Category	C% by weight	Also inother standards
XC42	1.1191	Others	0.42–0.5	18
XC42H1	1.1186	Quenched and tempered steels	0.37–0.44	16
XC42H1	1.1191	Quenched and tempered steels	0.42–0.5	21
XC42H1	1.1191	Others	0.42–0.5	18
XC42H1	1.0511	Quenched and tempered steels	0.37–0.44	21
XC42H1	1.0503	Quenched and tempered steels	0.42–0.5	24
XC42H1	1.1201	Quenched and tempered steels	0.42–0.5	11
XC42H1TS	1.0503	Quenched and tempered steels	0.42–0.5	24
XC42H1u	1.1189	Quenched and tempered steels	0.37–0.44	8
XC42HI	1.0511	Quenched and tempered steels	0.37–0.44	21
XC45	1.1191	Quenched and tempered steels	0.42–0.5	21
XC45	1.1191	Others	0.42–0.5	18
XC45	1.0503	Quenched and tempered steels	0.42–0.5	24
XC45H1	1.0503	Quenched and tempered steels	0.42–0.5	24
XC48	1.0503	Quenched and tempered steels	0.42–0.5	24
XC48 / C45E	1.1730	Unalloyed tool steels / carbon steels	0.42–0.5	14
XC48H1	1.1191	Quenched and tempered steels	0.42–0.5	21
XC48H1	1.1191	Others	0.42–0.5	18
XC48H1	1.0540	Quenched and tempered steels	0.47–0.55	13
XC48H1	1.0503	Quenched and tempered steels	0.42–0.5	24
XC48H1	1.0535	Quenched and tempered steels	0.52–0.6	21
XC48H1	1.1206	Quenched and tempered steels	0.47–0.55	17
XC48H1TS	1.0535	Quenched and tempered steels	0.52–0.6	21
XC48H1TS	1.1213	Steels for surface hardening	0.5–0.57	11
XC48H1u	1.1201	Quenched and tempered steels	0.42–0.5	11
XC48TS	1.1213	Steels for surface hardening	0.5–0.57	11
XC48TS	1.1210	Steels for surface hardening	0.5–0.57	8
XC48TS	1.0535	Quenched and tempered steels	0.52–0.6	21
XC50	1.1206	Quenched and tempered steels	0.47–0.55	17
XC50	1.0535	Quenched and tempered steels	0.52–0.6	21
XC50	1.0540	Quenched and tempered steels	0.47–0.55	13
XC50	1.1210	Steels for surface hardening	0.5–0.57	8
XC54	1.1203	Quenched and tempered steels	0.52–0.6	15
XC54	1.0535	Quenched and tempered steels	0.52–0.6	21
XC55	1.1203	Quenched and tempered steels	0.52–0.6	15
XC55	1.0601	Quenched and tempered steels	0.57–0.65	25
XC55	1.0535	Quenched and tempered steels	0.52–0.6	21
XC55H1	1.1203	Quenched and tempered steels	0.52–0.6	15
XC55H1	1.0535	Quenched and tempered steels	0.52–0.6	21
XC55H1u	1.1209	Others	0.52–0.6	8
XC6	1.0322	Unalloyed structural steels	≤ 0.12	17
XC60	1.1221	Quenched and tempered steels	0.57–0.65	18
XC60	1.0601	Quenched and tempered steels	0.57–0.65	25
XC60	1.1211	Spring steels	0.57–0.65	5
XC65	1.0601	Quenched and tempered steels	0.57–0.65	25
XC65	1.1620	Unalloyed tool steels / carbon steels	0.65–0.74	14
XC68	1.1231	Spring steels	0.65–0.73	18
XC68	1.1234	Others	0.6–0.75	9
XC68	1.0603	Spring steels	0.65–0.72	10
XC68	1.2007	Tool steels for cold work	0.65–0.7	8

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.