| 摘要 |
A steel alloy contains in weight-% 0.5-1.0 C, 1-2 Si, max 0.2 Mn, preferably max 0.001 S, 0.1-0.5 Cr, balance essentially only iron. In the form of a cold rolled, hardened and tempered strip it can be used as a backing material for band saw blades, frame saw blades and circular saw blades, where the teeth are tipped with a different material than the backing material. This steel strip has a structure consisting of tempered martensite, and possibly remaining carbides, obtainable by hardening from a temperature between 780 DEG and 1000 DEG C. and tempering at a temperature between 200 DEG and 550 DEG C.
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