Patent ID: 8771589

Claim:
A spheroidal cast iron alloy part having mechanical strength, high wear resistance and a high degree of ductility, consisting of: 3.43% by weight C, 3.38% by weight Si, 0.047% by weight P, 0.037% by weight Mg, 0.043% by weight Cr, 0.012% by weight Al, 0.004% by weight S, 0.71% by weight Cu, 0.2% by weight Mn, 0.0008% by weight B, and balance essentially Fe, wherein the cast part is selected from the group consisting of wheel carriers for motor vehicles, brake disks and wishbones for passenger cars, and wherein the cast part has an elongation at rupture A 5 of 5 to 14% with a tensile strength Rm of 900 to 600 MPa in as cast and cooled condition.