Comparison of Steel Equivalent Grades

The table below compares steel equivalent grades of materials from various international specifications. Note that materials compared are the nearest available grade and may have slight variations in actual chemistry.

Comparison of Steel Equivalent Grades
EN #	EN name	SAE	UNS	DIN	BS 970	UNI	JIS
Carbon steels
1.1141 1.0401 1.0453	C15D C18D	1018		CK15 C15 C16.8	040A15 080M15 080A15 EN3B	C15 C16 1C15	S15 S15CK S15C
1.0503 1.1191 1.1193 1.1194	C45	1045		C45 CK45 CF45 CQ45	060A47 080A46 080M46	C45 1C45 C46 C43	S45C S48C
1.0726 1.0727	35S20 45S20	1140/1146		35S20 45S20	212M40 En8M
1.0715 1.0736	11SMn37	1215		9SMn28 9SMn36	230M07 En1A	CF9SMn28 CF9SMn36	SUM 25 SUM 22
1.0718 1.0737	11SMnPb30 11SMnPb37	12L14		9SMnPb28 9SMnPb36	230M07 Leaded En1A Leaded	CF9SMnPb29 CF9SMnPb36	SUM 22L SUM 23L SUM 24L
Alloy steels
1.7218		4130		25CrMo4 GS-25CrMo4	708A30 CDS110	25CrMo4 (KB) 30CrMo4	SCM 420 SCM 430 SCCrM1
1.7223 1.7225 1.7227 1.3563	42CrMo4	4140/4142		41CrMo4 42CrMo4 42CrMoS4 43CrMo4	708M40 708A42 709M40 En19 En19C	41CrMo4 38CrMo4 (KB) G40 CrMo4 42CrMo4	SCM 440 SCM 440H SNB 7 SCM 4M SCM 4
1.6582 1.6562	34CrNiMo6	4340		34CrNiMo6 40NiCrMo8-4	817M40 En24	35NiCrMo6 (KB) 40NiCrMo7 (KB)	SNCM 447 SNB24-1-5
1.6543 1.6523	20NiCrMo2-2	8620		21NiCrMo22 21NiCrMo2	805A20 805M20	20NiCrMo2	SNCM 200 (H)
Stainless steels
1.4310	X10CrNi18-8	301	S30100
1.4318	X2CrNiN18-7	301LN
1.4305	X8CrNiS18-9	303	S30300	X10CrNiS18-9	202S 21 En58M	X10CrNiS18-09	SUS 303
1.4301	X2CrNi19-11 X2CrNi18-10	304	S30400	X5CrNi18-9 X5CrNi18-10 XCrNi19-9	304S 15 304S 16 304S 18 304S 25 En58E	X5CrNi18-10	SUS 304 SUS 304-CSP
1.4306	X2CrNi19-11	304L	S30403		304S 11		SUS304L
1.4311	X2CrNiN18-10	304LN	S30453
1.4948	X6CrNi18-11	304H	S30409
1.4303	X5CrNi18-12	305	S30500
1.4401 1.4436	X5CrNiMo17-12-2 X5CrNiMo18-14-3	316	S31600	X5CrNiMo17 12 2 X5CrNiMo17 13 3 X5CrNiMo 19 11 X5CrNiMo 18 11	316S 29 316S 31 316S 33 En58J	X5CrNiMo17 12 X5CrNiMo17 13 X8CrNiMo17 13	SUS 316 SUS316TP
1.4404	X2CrNiMo17-12-2	316L	S31603		316S 11		SUS316L
1.4406 1.4429	X2CrNiMoN17-12-2 X2CrNiMoN17-13-3	316LN	S31653
1.4571		316Ti	S31635	X6CrNiMoTi17-12	320S 33
1.4438	X2CrNiMo18-15-4	317L	S31703
1.4541		321	S32100	X6CrNiTi18-10	321S 31		SUS321
1.4878	X12CrNiTi18-9	321H	S32109
1.4512	X6CrTi12	409	S40900
		410	S41000
1.4016		430	S43000	X6Cr17	430S 17		SUS430
		440A	S44002
1.4112		440B	S44003
1.4125		440C	S44004
1.4104		440F	S44020	X14CrMoS17			SUS430F
1.4539	X1NiCrMoCu25-20-5	904L	N08904
1.4547	X1CrNiMoCuN20-18-7		S31254
Tool steels
1.2363	X100CrMoV5	A-2		X100CrMoV51	BA 2	X100CrMoV5-1 KU	SKD 12
1.2379	X153CrMoV12	D-2		X153CrMoV12-1	BD 2	X155CrVMo12-1	SKD 11
1.2510		O-1		100MnCrW4	Bo 1	95MnWCr-5 KU

Remember to note that steel equivalent grades may have slight variations in chemistry between specifications. These are simply the closed grades commonly available in difference national / international specifications.

 

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