SAE 1050/AISI 1050

The range of International steel grades is vast and it would be impractical to cover a fraction of them on this site. Below are listed the grades of steel that we have most frequently had requests for information submitted to this site. Some of these grades are exclusively steel strip, whilst others are also used in long products. The analyses are for guidance only as the equivalents are never exact. There are links on the right hand site to companies and organisations that are able to offer more comprehensive steel specification data, or other pages on this site that contain more information on specific steel grades. Stainless Steel grades can be found  here        More International equivalents can be found  here The main standards in the United Kingdom concerned with steel strip are :- BS4360 this is gradually being replaced by EN10025 BS1449 steel plate, sheet and strip - cross reference BS EN 10139
Cold Rolled Drawing Qualities ( Mild Steel )
Euronorm	Germany	UK	USA
EN 10139	DIN 1624	BS 1449	ASTM	%C	%Mn	%Si	%S	%P	%Al	%Cr	%other
DC04	St4	CS1	SAE 1006	.03 - .06	.18 - .40	.02 max	.02 max	.02 max	.02 - .06	-	-
DC04/DC03	St4/RRSt3	CS1/CS3	SAE 1006	.04 - .08	.40 max	.03 max	.02 max	.02 max	.02 - .06	-	-
DC01	St2	CS4	SAE 1010	.08 - .13	.30 - .40	.03 max	.03 max	.03 max	.02 - .06	-	-
-	-	-	SAE 1018	.14 - .17	.60 - .80	.15 - .25	.02 max	.025 max	.02 - .09	-	-
Steel Grades for Forming
Euronorm	Germany	UK	USA
EN 10111	Din 1614	BS1449		%C	%Mn	%Si	%S	%P	%Al	%Cr	%other
DD14		-	SAE 1006	0.08max	0.35max	-	0.025max	0.025max
DD13	RStW24	HR1	SAE 1006	0.08max	0.40max	-	0.030max	0.030max
DD12	RStW23	HR2	SAE 1010	0.10max	0.45max	-	0.035max	0.035max
DD11	StW22	HR3/HR4	SAE 1010	0.12max	0.60max	-	0.045max	0.045max
Structural Steels
Euronorm	Germany	UK	USA
EN10025	Din 17100	BS4360	ASTM	%C	%Mn	%Si	%S	%P	Yield min	Tensile
S235		40A	A283C	0.22 max	1.60 max	0.50 max	.050 max	.050 max	-	-	-
S235JR	Rst37-2	40B	-	-	-	-	-	-	-	-	-
S275		43A	A570Gr40	0.25 max	1.60 max	0.50 max	.050 max	.050 max	245	430/510	-
S275	St44-2	43B	-	-	-	-	-	-	-	-	-
S355		50A	A572Gr50	-	-	-	-	-	-	-	-
S355JR		50B	-	-	-	-	-	-	-	-	-
S355JO	St52-3U	50C	-	0.22 max	1.60 max	0.60 max	0.40 max	0.040 max	-	490/620	-
Micro-Alloyed Steels
Euronorm	Germany	UK	USA	%C	%Mn	other*	Min Yield N mm²		Tensile N mm²
EN10149	SEW092	BS1449	SAEJ1392			With Nb. Ti. or V as grain refining element
S315MC	QSTE 340TM	40/30	045XLK	.12 max	1.30max	-	315	-	390-510	-	-
S355MC	QSTE 380TM	43/35	050XLK	.12 max	1.50max	-	355	-	430-550	-	-
S420MC	QSTE 420M	46/40	060XLK	12 max	1.20 max	-	-	-	-	-	-
S460ML	QSTE 500TM	50/45		.12 max	1.60 max	-	460	-	520-670	-	-
S550MC	QSTE 550TM	60/55	080XLK	-	-	-	-	-	-	-	-
There are numerous branded Micro-alloyed or high strength steels including Corus (Tenform),
Carbon Steels For Quenching and Tempering
Euronorm	Germany	UK	USA
EN 10132 - 3	DIN 17200	BS 1449	ASTM	%C	%Mn	%Si	%S	%P	%Al	%Cr	%other
C22E	CK2/C22	-	SAE 1020	.18 - .22	.60 - .70	.10 - .35	.02 max	.03 max	.01 max	-	-
C35E	CK35/C35	-	SAE 1035	.33 - .38	.50 - .70	.10 - .35	.010 max	.02 max	.02 - .06	.20 - .27	-
C40E	CK40/C40	CS40	SAE 1040	.37 - .42	.60 - .75	.15 - .25	.015 max	.02 max	.05 max	.25 - .35	-
-	-	CS40	SAE 1043	.40 - .45	.70 - .90	.10 - .35	.010 max	.02 max	.02 - .06	.20 - .30	-
C50E	CK45/C45	CS50	SAE 1050	.45 - .50	.65 - .80	.10 - .35	.010 max	.02 max	.02 - .06	.22 - .30	-
C60E	CK60/C60	-	SAE 1055	.57 - .61	.60 - .90	.15 - .30	.008 max	.02 max	.02 - .06	.25 - .35	-
Case Hardening Steels
Euronorm	Germany	UK	USA
EN 10132 - 2	DIN 17210	BS 1449	ASTM	%C	%Mn	%Si	%S	%P	%Al	%Cr	%other
C10E	CK10/C10	CS12	SAE 1010	.10 - .13	.40 - .60	.15 - .25	.008 max	.02 max	.01 max	-	-
16MnCr5	16MnCr5	-	-	.14 - .19	1.0 - 1.3	.40 max	.02 max	.02 max	.015 max	.80 - .11	-
Carbon Steels for Heat Treatment
Euronorm	Germany	UK	USA
EN 10132 - 4	DIN 17222	BS 1449	SAE J403	%C	%Mn	%Si	%S	%P	%Al	%Cr	%other
	CK 50	CS50	SAE1050	.45-.55	.50-.90	.05-.35	.040 max	.045 max	-	-	-
C67S	CK67/C67	CS70	SAE 1070	.68 - .73	.60 - .85	.15 - .25	.01 max	.02 max	-	.20 - .30	-
C75S	CK75/C75	CS70	SAE 1074	.70 - .75	.60 - .80	.15 - .30	.025 max	.025 max	.02 - .05	.20 - .30	-
C85S	CK85	CS80	SAE 1085	.80 - .90	.40 - .70	.15 - .35	.025 max	.025 max	-	.40 max	-
	CK101	CS95	SAE 1095	.90-1.00	.30-.60	.05-.35	.025 max	.025 max	-	-	-
Boron Steels
Euronorm	Germany	UK	USA
EN 10083	DIN 1624	BS 1449	ASTM J1268	%C	%Mn	%Si	%S	%P	%Al	%Cr	%Boron
22Mnb5	22B2			.22/.25	1.20/1.40	0.20/0.30	.004 max	.025 max	-	.0,15-0,35	.002.0035
30MnB5	28B2		15B30	.27/.33	1.15/1.45	0.20/0.30	.004 max	.025 max	-	.0,15-0,35	.0010/.0050
There are a number of branded variations on boron grades including SSAB, (Docal)   Corus and Rukki,
An excellent link to alloy steelshere				Alloy Steels
Uni 7845	Germany	UK	USA
	DIN	BS	SAE	%C	%Mn	%Si	%S	%P	%Al	%Cr	%V
16MnCr5			5120H	.13-0.19	1.0-1.3	.15-.40	.030 max	.030 max	-	.80-1.1
50CrV4	50CV4	735A50	6150	.47-0.55	0.70-1.10	0.15-0.40	.035 max	.035 max	-	-	.10-.20
42CrMo4	2CrMo4	-	4140	.38 - .45	.60 - .90	.40 max	.035 max	.035 max	-	0.90 - 1.20	-
15CrMo5		-	-	.12 - .18	.80 - 1.10	.15 - .40	.015 max	.025 max	.05 max	0.90 - 1.20	-
100Cr6	100Cr6	-	52100	.95 - 1.10	.25 - .45	.15 - .35	.025 max	.030 max	-	1.35 - 1.65	-
25CrMo4	25CrMo4	-		.22 - .29	.60 - .90	.40 max	.035 max	.035 max	-	.90 - 1.20	-
30CrMo4			4130	.27-.34	.40-.70	.15-.40	.035 max	.035 max	-	.90-1.10	-
BS EN 10083-1 :1991 Quenched and Tempered Steels                       Name Number Name Number Name Number Name Number C22E 1.1151 C45E 1.1191 38CrS2 1.7023 25CrMoS4 1.7213 C22R 1.1149 C45R 1.1201 46Cr2 1.7006 34CrMo4 1.722 C25E 1.1158 C50E 1.1206 46CrS2 1.7025 34CrMoS4 1.7226 C25R 1.1163 C50R 1.1245 34Cr4 1.7033 42CrMo4 1.7225 C30E 1.1178 C55E 1.1203 34CrS4 1.7037 42CrMoS4 1.7227 C30R 1.1179 C55R 1.1209 37Cr4 1.7034 50CrMo4 1.7228 C35E 1.1181 C60E 1.1221 37CrS4 1.7038 36CrNiMo4 1.6511 C35R 1.118 C60R 1.1223 41Cr4 1.7035 34CrNiMo6 1.6582 C40E 1.1186 28Mn6 1.117 41CrS4 1.7039 30CrNiMo8 1.658 C40R 1.1189 38Cr2 1.7003 25CrMo4 1.7218 36NiCrMo16 1.6773 51CrV4 18,159