Anti-skid and protective chain

An anti-skid chain for tires having a tread net which comprises closed interconnected horizontal links and vertical links, the horizontal links being of case hardened steel and having an inner width larger than that of the vertical links, said horizontal links having a recarburized surface zone of a maximum thickness of two millimeters and a carbon content of 0.5 to 0.9%, and said vertical links consisting of an alloyed super refined steel having a carbon content of 0.5 to 0.9%, said vertical and horizontal links being hardened with a grain hardness of at least 600 HV (test force 300 N) in the hardened condition.