Carburization of a high-manganese, low-carbon steel by Methane-Nitrogen gas mixtures.

It has been shown that an experimental 4 wt pet Mn steel can be successfully treated to produce a very high surface hardness (in excess of 700 VPN) and a substantial core strength. The base steel has sufficient hardenability to give through-hardening without quenching from the carburization furnace. [ABSTRACT FROM AUTHOR]