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S420MC | 1.0980

Thanks to its fine-grained microstructure and high degree of purity, grade S420MC is well suited for cold bending, folding and cold flanging without cracking. The name of grade S420MC refers to its upper yield strength. This is 420 MPa. The following minimum values for the bending radii should be considered:

Thermomechanically rolled steel for cold working

Nominal thickness (t), mmMin. bending radius
<= 30.5 t
3< t <=61.0 t
t >61.0 t

Properties according to DIN EN 10 149-2

Steel type

Short designationVDA239-100Material number

Mechanical properties, longitudinal

Upper yield1) strength ReH MPa min.Tensile strength Rm MPaElongation at fracture A80 % min.Elongation at fracture A80 % min.

Chemical composition (heat analysis)

Percentage by weight % max.
CMnSiPSAltotal min.NbVTi
0.121.600.500.0250.0150.0150.092)0.202)0.15 2)

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.