S650MC | 1.8976

Thanks to its fine-grained microstructure and high degree of purity, grade S650MC is well suited for cold bending, folding and cold flanging without cracking. The name of grade S650MC refers to its upper yield strength. This is 650 MPa.

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The following minimum values for the bending radii should be considered:

Thermomechanically rolled steel for cold working

Nominal thickness (t), mm	Min. bending radius
<= 3	1.5 t
3< t <=6	2.0 t
t >6	2.5 t

S650MC | 1.8976: Properties according to DIN EN 10 149-2

Steel type

Short designation	VDA239-100	Material number
S650MC	-	1.8976

S650MC | 1.8976: Mechanical properties, longitudinal

Upper yield¹⁾ strength ReH MPa min.	Tensile strength Rm MPa	Elongation at fracture A80 % min.	Elongation at fracture A80 % min.
650	700–880	10	12

S650MC | 1.8976: Chemical composition (heat analysis)

Percentage by weight % max.
C	Mn	Si	P	S	Altotal min.	Nb	V	Ti	M	B
0.12	2.00	0.60	0.025	0.015	0.015	0.09²⁾	0.20²⁾	0.22 ²⁾	0.50	0.005

Your product of choice: S650MC | 1.8976

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1) For thicknesses > 8 mm the yield strength values may be 20 MPa lower.

2) The combined content of Nb, V and Ti must not exceed 0.22 %.

Also available with closer thickness tolerances in the form of scalur® (see page 19) or from the Basque Mungia as in accordance with DIN EN 10 140.