BS · 1,547 grades

BS steel grades — 1547 designations — Page 6

Every grade designated under BS, 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 indicative cross-reference, not an asserted identity — the grades are close, not interchangeable. 1 of 50 rows differ and carry a “This grade’s own name” mark.

Also known as

1547 designations

Grade	Material no.	Category	C% by weight	Also inother standards
2 S.143	1.4546	Special steels for aviation and aerospace	≤ 0.08	5
200	EN-JL1030	Others	—	22
203-4	2.4630	High-temperature steels / aviation variant	0.08–0.15	3
204	2.4665	High-temperature steels	0.05–0.15	11
2067	1.2067	Tool steels for cold work	0.95–1.1	21
207	1.7027	Case hardening steels	0.17–0.23	12
2080	1.2060	Tool steels for cold work	1–1.1	15
20Mn5	1.1133	Quenched and tempered steels	0.17–0.23	20
20MnCr5	1.7131	Case hardening steels	0.14–0.19	24
20NiCrMo2-2	1.6523	Case hardening steels	0.17–0.23	18
20NiCrMoS2-2	1.6523	Case hardening steels	0.17–0.23	18
210A15	1.0723	Free cutting steels	0.12–0.18	3
210M15	1.0721	Free cutting steels	0.07–0.13	15
212M36	1.0726	Free cutting steels	0.32–0.39	15
212M44	1.0727	Free cutting steels	0.42–0.5	8
216M36	1.0762	Free cutting steels	0.4–0.48	20
22-4-9	1.4875	Valve steels	0.5–0.6	4
220	EN-JL1030	Others	—	22
220M07	1.0711	Free cutting steels	≤ 0.12	6
223-460	1.0436	Fine-grain structural steels	0.15–0.2	14
223-490	1.0445	Higher strength steels	—	12
223Gr.490	1.0562	Fine-grain structural steels	≤ 0.18	18
224-400	1.0437	Others	≤ 0.2	8
224-430	1.0481	Heat-resistant structural steels	0.08–0.2	17
224-460	1.0577	Unalloyed structural steels	≤ 0.2	11
224-460B	1.0481	Heat-resistant structural steels	0.08–0.2	17
224Gr.430	1.0487	Fine-grain structural steels	≤ 0.16	3
224Gr.460	1.0481	Heat-resistant structural steels	0.08–0.2	17
224Gr.490	1.0481	Heat-resistant structural steels	0.08–0.2	17
224Gr.490	1.0473	Heat-resistant structural steels	0.1–0.22	10
224Gr.490	1.0566	Fine-grain structural steels	≤ 0.18	11
224Gr.490	1.0565	Fine-grain structural steels	≤ 0.18	7
225M36	1.0762	Free cutting steels	0.4–0.48	20
226M44	1.0762	Free cutting steels	0.4–0.48	20
22H17 This grade’s own name	1.6587	Case hardening steels	0.15–0.21	15
22HS	1.0402	Quenched and tempered steels	0.17–0.24	24
230M07	1.0715	Free cutting steels	≤ 0.14	14
230M07	1.0736	Free cutting steels	≤ 0.14	11
230M07Pb	1.0737	Free cutting steels	≤ 0.14	8
2343	1.2343	Tool steels for hot work	0.33–0.41	20
2344	1.2344	Tool steels for hot work	0.35–0.42	20
235JRG1	1.0036	Unalloyed structural steels	≤ 0.17	20
235JRG1	1.0036	Unalloyed structural steels	≤ 0.17	19
2365	1.2365	Tool steels for hot work	0.28–0.35	18
240	1.5415	Heat-resistant structural steels	0.12–0.2	15
240M07	1.0736	Free cutting steels	≤ 0.14	11
240M07EN	1.0736	Free cutting steels	≤ 0.14	11
240M07EN 1B	1.0736	Free cutting steels	≤ 0.14	11
243	1.5415	Heat-resistant structural steels	0.12–0.2	15
244Gr.400	1.0425	Heat-resistant structural steels	≤ 0.2	20

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.