Patent ID: 7210388

Claim:
A bimetal saw band, comprising (a) a support band made from steel consisting essentially of at least one of the following: from 1.8 to 4.0% of chromium, from 0.1 to 0.5% of vanadium or from 0.01 to 0.30% of niobium and/or tantalum, said steel further comprising, from 0.1 to less than 2.0% of tungsten and/or from 0.1 to 1.0% of copper and less than 0.2% cobalt, and (b) hard-metal tips comprising at least 75% of tungsten carbide and 5 to 15% of cobalt and 0.5 to 5% of at least one of the carbides Cr 3 C 2 , VC and NbC and up to 3% of titanium carbide and/or tantalum carbide as grain stabilizers with a grain size of less than 5 μm.