STN · 184 grades

STN steel grades — 184 designations — Page 4

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
19 152	1.1525	Unalloyed tool steels / carbon steels	0.75–0.85	20
19 191	1.1545	Unalloyed tool steels / carbon steels	1–1.1	19
19 221	1.1555	Unalloyed tool steels / carbon steels	1.15–1.25	16
19 312	1.2842	Tool steels for cold work	0.85–0.95	14
19 313	1.2842	Tool steels for cold work	0.85–0.95	14
19 314	1.2825	Tool steels for cold work	0.9–1	13
19 356	1.2834	Tool steels for cold work	1–1.1	5
19 421	1.2210	Tool steels for cold work	1.1–1.25	13
19 436	1.2080	Tool steels for cold work	1.9–2.2	18
19 437	1.2436	Tool steels for cold work	2–2.3	16
19 452	1.2101	Tool steels for cold work	0.58–0.66	5
19 487	1.2162	Tool steels for cold work	0.18–0.24	7
19 520	1.2311	Tool steels for cold work	0.35–0.45	12
19 541	1.2365	Tool steels for hot work	0.28–0.35	18
19 550	1.2355	Others	0.45–0.55	2
19 552	1.2343	Tool steels for hot work	0.33–0.41	20
19 554	1.2344	Tool steels for hot work	0.35–0.42	20
19 569	1.2345	Tool steels for hot work	0.48–0.53	3
19 571	1.2363	Tool steels for cold work	0.95–1.05	16
19 572	1.2601	Tool steels for cold work	1.55–1.75	15
19 573	1.2379	Tool steels for cold work	1.45–1.6	20
19 614	1.2721	Tool steels for cold work	0.45–0.55	4
19 655	1.2767	Tool steels for cold work	0.4–0.5	9
19 663	1.2714	Tool steels for hot work	0.5–0.6	15
19 721	1.2581	Tool steels for hot work	0.25–0.35	18
19 735	1.2550	Tool steels for cold work	0.55–0.65	15
19 820	1.3333	High-speed steels	0.95–1.03	2
19 824	1.3355	High-speed steels	0.73–0.83	22
19 830	1.3339	High-speed steels	0.8–0.88	16
19 830	1.3553	Bearing steels	0.78–0.86	2
19 837	1.3344	High-speed steels	1.15–1.25	8
19 852	1.3243	High-speed steels	0.87–0.95	19
19 861	1.3207	High-speed steels	1.2–1.35	14
415320	1.7733	Heat-resistant structural steels	0.2–0.28	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.