Ovako Steel's 677 and 477 air hardening steels do not require oil or salt
baths, thereby eliminating a costly and environmentally polluting
production step. According to a new report from the company, the steels
show very good hard machining properties in their hardened state.
Substantial cutting depths can be used to achieve faster machining
without requirement for cutting fluids, and a resulting surface that is
easy to finish. In addition, Ovako 477 has good dimensional stability at
elevated temperatures, plus the strength and toughness required for
applications such as shafts and other machine elements subject to adverse
operating conditions. The report can be ordered via email.