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Alloy Steels

Steel	BS 970 1991	BS 970 1983	BS 970 1955 EN	AISI / SAE	Werkstöff	Kerzname
523H15	523H15	523H15	–	5015	1.7012	13 Cr 2
523M15	523M15	523M15	–	5015	1.7015	15 Cr 3
527A17	527A17	527A17	–	5115	–	–
527A60	–	–	48	5160	1.7176	55 Cr 3
527H17	527H17	527H17	–	5115	–	–
527H60	–	–	–	5160	1.7176	55 Cr 3
527M17	527M17	527M17	–	5115	–	–
530A30	–	530A30	18A	5130	1.7030	28 Cr 4
530A32	–	530A32	18B	5130	1.7033	34 Cr 4
530A36	–	530A36	18C	5132	1.7034	37 Cr 4
530A40	–	530A40	18D	5140	1.7035	41 Cr 4
530H32	–	530H32	–	5130	1.7033	34 Cr 4
530H36	–	530H36	–	5132	1.7034	37 Cr 4
530H40	–	530H40	–	5140	1.7035	41 Cr 4
530M40	530M40	530M40	18	5140	1.7035	41 Cr 4
535A99	–	535A99	31	52100	1.3505	100 Cr 6
590A15	590A15	590A15	–	–	1.7131	16 Mn Cr 5
590H17	590H17	590H17	–	–	1.7131	16 Mn Cr 5
590M17	590M17	590M17	–	–	1.7131	16 Mn Cr 5
605A32	–	605A32	16B	–	–	–
605A37	–	605A37	16C	–	–	–
605H32	–	605H32	–	–	–	–
605H37	–	605H37	–	–	–	–
605M36	605M36	605M36	16	–	–	–
606M36	606M36	606M36	16M	–	–	–
635A14	635A14	635A14	–	–	–	–
635H15	635H15	635H15	–	–	–	–
635M15	635M15	635M15	351	–	–	–
637A16	637A16	637A16	–	–	–	–
637H17	637H17	637H17	–	–	–	–
637M17	637M17	637M17	352	–	–	–
655H13	655H13	655H13	–	3415	1.5752	14 NiCr 14
655M13	655M13	655M13	36	3415	1.5752	14 NiCr 14
665H17	665H17	665H17	–	4615	–	–
665H20	665H20	665H20	–	4620H	–	–
665H23	665H23	665H23	–	–	–	–
665M17	665M17	665M17	34	4615	–	–
665M20	665M20	665M20	–	4620	–	–
665M23	665M23	665M23	35	–	–	–
708A25	–	708A25	–	–	–	–
708A30	–	708A30	–	4130	–	–
708A37	–	708A37	19B	4137	1.7220	34 CrMo 4
708A40	–	708A40	–	4140	1.7225	42 CrMo 4
708A42	–	708A42	19C	4142	1.7225	42 CrMo 4
708A47	–	708A47	–	4147	1.7228	50 CrMo 4
708H20	708H20	708H20	–	–	–	–
708H37	–	708H37	–	4137H	1.7220	34 CrMo 4
708H42	–	708H42	–	4142H	1.7227	42 CrMo 4
708H45	–	708H45	–	4145H	–	–
708M20	708M20	708M20	–	–	–	–
708M40	708M40	708M40	19	4140	1.7225	42 CrMo 4
709M40	709M40	709M40	19	–	1.7225	42 CrMo 4
720M32	720M32	720M32	–	–	1.7361	32 CrMo 12
722M24	722M24	722M24	40B	–	1.7361	32 CrMo 12
735A50	–	–	47	6150	1.8159	50 CrV 4
805A17	805A17	805A17	–	8617	1.6523	21 NiCrMo 2
805A20	805A20	805A20	–	8620	1.6543	21 NiCrMo 22
805A22	805A22	805A22	–	8622	1.6543	21 NiCrMo 22
805A60	–	–	–	8660	–	–
805H17	805H17	805H17	–	8617H	1.6523	21 NiCrMo 2
805H20	805H20	805H20	–	8620H	1.6543	21 NiCrMo 22
805H22	805H22	805H22	–	8622H	1.6543	21 NiCrMo 22
805H60	–	805H60*	–	8660H	–	–
805M17	805M17	805M17	361	8617	1.6523	21 NiCrMo 2
805M20	805M20	805M20	362	8620	1.6543	21 NiCrMo 22
805M22	805M22	805M22	–	8622	1.6543	21 NiCrMo 22
808H17	808H17	808H17	–	–	–	–
808M17	808M17	808M17	–	–	–	–
815H17	815H17	815H17	–	–	–	–
815M17	815M17	815M17	353	–	–	–
817A37	–	817A37	–	4340	–	–
817A42	–	817A42	–	4340	–	–
817M40	817M40	817M40	24	4340	1.6565	40 CrNiMo 6
820H17	820H17	820H17	–	–	–	–
820M17	820M17	820M17	354	–	–	–
822H17	822H17	822H17	–	–	–	–
822M17	822M17	822M17	355	–	–	–
826M31	826M31	826M31	25	–	1.6743	32 NiCrMo 10 4
826M40	826M40	826M40	26	–	1.6745	40 NiMoCr 10 5
832H13	832H13	832H13	–	–	1.6657	14 NiCrMo 13 4
832M13	832M13	832M13	36C	9310	1.6657	14 NiCrMo 13 4
835H15	835H15	835H15	–	–	1.6723	15 NiCrMo 16 5
835M15	835M15	835M15	39B	–	1.6723	15 NiCrMo 16 5
835M30	–	835M30	30B	–	1.6747	30 NiCrMo 16 6
897M39	897M39	897M39	40C	–	1.8523	39 CrMoV 13 9
905M39	905M39	905M39	41B	–	1.8509	41 CrAlMo 7
925A60	–	925A60*	–	–	–	–
945M38	945M38	945M38	100	–	–	–

These Comparison Charts are based on chemical composition and type analysis. Mechanical properties have not been taken into account although in many cases may be similar. The information in the charts should therefore be used for guidance only.