STN · 184 grades

STN steel grades — 184 designations — Page 2

Every grade designated under STN, 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

184 designations

Grade	Material no.	Category	C% by weight	Also inother standards
12 050	1.1191	Quenched and tempered steels	0.42–0.5	21
12 050	1.1191	Others	0.42–0.5	18
12 050	1.0503	Quenched and tempered steels	0.42–0.5	24
12 051	1.1206	Quenched and tempered steels	0.47–0.55	17
12 051	1.0540	Quenched and tempered steels	0.47–0.55	13
12 060	1.1203	Quenched and tempered steels	0.52–0.6	15
12 060	1.0535	Quenched and tempered steels	0.52–0.6	21
12 060	1.1219	Unalloyed bearing steels	0.52–0.6	3
12 061	1.1221	Quenched and tempered steels	0.57–0.65	18
12 061	1.0601	Quenched and tempered steels	0.57–0.65	25
12061	1.1231	Spring steels	0.65–0.73	18
12061	1.1234	Others	0.6–0.75	9
12061	1.0603	Spring steels	0.65–0.72	10
12061	1.2007	Tool steels for cold work	0.65–0.7	8
12081	1.1248	Spring steels	0.7–0.8	11
12081	1.0605	Spring steels	0.7–0.8	11
12081	1.2003	Tool steels for cold work	0.7–0.8	9
12090	1.1269	Spring steels	0.8–0.9	14
12090	1.2004	Tool steels for cold work	0.8–0.9	8
13 030	1.0481	Heat-resistant structural steels	0.08–0.2	17
13 030	1.1133	Quenched and tempered steels	0.17–0.23	20
13 141	1.1170	Quenched and tempered steels	0.25–0.32	16
13 180	1.1244	Others	0.65–0.75	2
14 100	1.2067	Tool steels for cold work	0.95–1.1	21
14 109	1.3505	Bearing steels	0.93–1.05	22
14 120	1.7016	Case hardening steels	0.14–0.2	11
14 140	1.7034	Quenched and tempered steels	0.34–0.41	23
14 209	1.3520	Bearing steels	0.93–1.05	16
14 220	1.7131	Case hardening steels	0.14–0.19	24
14 220	1.3521	Others	0.14–0.19	2
14 221	1.7147	Case hardening steels	0.17–0.22	15
14 221	1.2162	Tool steels for cold work	0.18–0.24	7
14 221	1.3523	Case hardening steels	0.17–0.22	8
15 020	1.5415	Heat-resistant structural steels	0.12–0.2	15
15 121	1.7335	Heat-resistant structural steels	0.08–0.18	22
15 124	1.7243	Case hardening steels	0.15–0.21	12
15 124	1.3567	Others	0.17–0.23	7
15 127	1.8963	Weathering steels	≤ 0.16	9
15 130	1.7218	Quenched and tempered steels	0.22–0.29	25
15 142	1.7225	Quenched and tempered steels	0.38–0.45	25
15 142	1.3563	Quenched and tempered steels	0.4–0.46	2
15 217	1.8945	Weathering steels	≤ 0.12	16
15 260	1.8159	Quenched and tempered steels	0.47–0.55	27
15 313	1.7380	Heat-resistant structural steels	0.08–0.14	20
15 313	1.7383	Heat-resistant structural steels	0.08–0.15	9
15 320	1.7709	Heat-resistant structural steels	0.17–0.25	6
15 330	1.8519	Nitriding steels	0.27–0.34	5
15 340	1.8509	Nitriding steels	0.38–0.45	16
16 224	1.8928	High-strength steels	≤ 0.2	7
16 341	1.6563	Others	0.38–0.44	4

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.