Inventors:
Rene Schlatter - Latrobe PA
David P. Hughes - Ligonier PA
James Stepanic - Latrobe PA
Assignee:
Latrobe Steel Company - Latrobe PA
International Classification:
C22C 3822
C22C 3824
Abstract:
A new high speed steel with improved cutting life is provided consisting essentially of about 0. 7 to 1. 6% carbon, about 0. 2 to 1. 0% silicon, about 0. 2 to 0. 8% manganese, up to about 0. 2% sulphur, about 0. 5 to about 20% tungsten, about 0. 5 to about 10% molybdenum, about 0. 5 to 5% chromium, about 0. 5 to about 6% vanadium, up to about 10% cobalt, more than 0. 03% to about 0. 20% phosphorus, the balance iron with residual impurities in ordinary amounts.