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28SMnPb28

Automotive

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28SMnPb28 Steel

28SMnPb28, is a non-standardized free-cutting steel providing mechanical strength around 600 MPa. It delivers higher strength than low-carbon free-cutting steels while maintaining good machinability. This grade is not suitable for heat treatments.

References and Comparable Standards

References and comparable standards for 100Cr6 steel
Region	Standard	Grade	Werkstoff No.
Europe	EN 10087: 1998 EN 10277-3: 2008	-	-
Italy	UNI 4838-80	-	-
Germany	DIN 1651-88	-	-
France	NF A 35-561-92	-	-
UK	BS 970 pt.3-91	-	-
USA	ASTM A 29	-	-

Europe

StandardEN 10087: 1998
EN 10277-3: 2008

Grade-

Werkstoff No.-

Italy

StandardUNI 4838-80

Grade-

Werkstoff No.-

Germany

StandardDIN 1651-88

Grade-

Werkstoff No.-

France

StandardNF A 35-561-92

Grade-

Werkstoff No.-

StandardBS 970 pt.3-91

Grade-

Werkstoff No.-

USA

StandardASTM A 29

Grade-

Werkstoff No.-

Chemical Composition (Cast Analysis) (%)

Chemical composition values for 100Cr6 steel
C	Si / max	Mn	P / max	S	Pb
%0,25-0,30	%0,30	%1,10-1,60	%0,10	%0,24-0,32	%0,15-0,30

Chemical composition values for 100Cr6 steel
Carbon	%0,25-0,30
Silicon	%0,30
Manganese	%1,10-1,60
Phosphorus	%0,10
Sulfur	%0,24-0,32
Lead	%0,15-0,30

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)630-890	Cold Drawn (+C)7
10<d≤16	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)-	as Rolled and/or as Rolled + Turned (+SH)-	Cold Drawn (+C)400	Cold Drawn (+C)590-850	Cold Drawn (+C)7
16<d≤40	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)140-200	as Rolled and/or as Rolled + Turned (+SH)450-650	Cold Drawn (+C)350	Cold Drawn (+C)540-820	Cold Drawn (+C)8
40<d≤63	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)140-200	as Rolled and/or as Rolled + Turned (+SH)450-650	Cold Drawn (+C)330	Cold Drawn (+C)520-800	Cold Drawn (+C)9
63<d≤100	PropertyDelivery ConditionValue					as Rolled and/or as Rolled + Turned (+SH)150-200	as Rolled and/or as Rolled + Turned (+SH)420-620	Cold Drawn (+C)-	Cold Drawn (+C)-	Cold Drawn (+C)-
Note: For size <5 mm the mechanical properties may be agreed at the time of enquiry and order.