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11SMnPb30 - Nr.1.0718

Automotive

Power Transmission

11SMnPb30 Steel

11SMnPb30 is a lead-alloyed free-cutting steel designed for high productivity. The lead addition delivers exceptional machinability and superior chip removal performance. It is the most widely used grade in Germany for precision turned parts.

References and Comparable Standards

Standard Reference: EN ISO 683-4: 2018 (Hot-rolled products) | EN 10277: 2018 (Bright products)

References and comparable standards for 100Cr6 steel
Region	Standard	Grade	Werkstoff No.
Europe	EN 10087: 1998 EN 10277-3: 2008	11SMnPb30	1.0718
Italy	UNI 4838-80	CF9SMnPb28	-
Germany	DIN 1651-88	9SMnPb28	1.0718
France	NF A 35-561-92	S250Pb	-
UK	BS 970 pt.3-91	230M07 Leaded	-
USA	ASTM A 29	12L14	-

Europe

StandardEN 10087: 1998
EN 10277-3: 2008

Grade11SMnPb30

Werkstoff No.1.0718

Italy

StandardUNI 4838-80

GradeCF9SMnPb28

Werkstoff No.-

Germany

StandardDIN 1651-88

Grade9SMnPb28

Werkstoff No.1.0718

France

StandardNF A 35-561-92

GradeS250Pb

Werkstoff No.-

StandardBS 970 pt.3-91

Grade230M07 Leaded

Werkstoff No.-

USA

StandardASTM A 29

Grade12L14

Werkstoff No.-

Chemical Composition (Cast Analysis) (%)

Chemical composition values for 100Cr6 steel
C / max	Si / max	Mn	P / max	S	Pb
%0,14	%0,05	%1,00-1,50	%0,11	%0,34-0,40	%0,20-0,35

Chemical composition values for 100Cr6 steel
Carbon	%0,14
Silicon	%0,05
Manganese	%1,00-1,50
Phosphorus	%0,11
Sulfur	%0,34-0,40
Lead	%0,20-0,35

Mechanical Properties – Bright Steel

Mechanical properties for 100Cr6 steel
Size (mm)	as Rolled and/or as Rolled + Turned (+SH)		Cold Drawn (+C)
Size (mm)	HardnessHB	Tensile StrengthRm (MPa)	Yield StrengthRp0.2 (MPa) min	Tensile StrengthRm (MPa)	ElongationA5 (%) min
5≤d≤10	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)-	as Rolled and/or as Rolled + Turned (+SH)-	Cold Drawn (+C)440	Cold Drawn (+C)510-810	Cold Drawn (+C)6
10<d≤16	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)-	as Rolled and/or as Rolled + Turned (+SH)-	Cold Drawn (+C)410	Cold Drawn (+C)490-760	Cold Drawn (+C)7
16<d≤40	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)169	as Rolled and/or as Rolled + Turned (+SH)380-570	Cold Drawn (+C)375	Cold Drawn (+C)460-710	Cold Drawn (+C)8
40<d≤63	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)169	as Rolled and/or as Rolled + Turned (+SH)370-570	Cold Drawn (+C)305	Cold Drawn (+C)400-650	Cold Drawn (+C)9
63<d≤100	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)154	as Rolled and/or as Rolled + Turned (+SH)360-520	Cold Drawn (+C)245	Cold Drawn (+C)360-630	Cold Drawn (+C)9
Note: For size <5 mm the mechanical properties may be agreed at the time of enquiry and order.