Ferrous alloys and abrasive-resistant articles made therefrom

Claim 1

AN ABRASION RESISTING NON-DEFORMING STEEL ALLOY HAVING CARBON IN EXCESS OF THAT NECESSARY TO GIVE IT THE DESIRED HARDENABILITY CHARACTERISTIC COMPRISING ABOUT 1% TO 3.7% CARBON, ABOUT 2% TO 13% VANDAIUM, AT LEAST ONE OF THE GROUP CONSISTING OF CHROMIUM, TUNGSTEN, MANGANESE AND MOLYBDENUM IN INDIVIDUAL PERCENTAGES OF MANGANESE .90% TO 2.5%, CHROMIUM 1.4% TO 5% TUNGSTEN 1.75% TO 6.5%, MOLYBDENUM 1% TO 4% AND IN AGGREGATE PERCENTAGES IN SUBSTITUTED AMOUNTS SUCH THAT THE HARDENING PROPERTIES PRODUCED BY THE AGGREGATE ARE SUBSTANTIALLY EQUAL TO THE HARDENING PROPERTIES PRODUCED BY AN INDIVIDUAL MEMBER OF THE GROUP WITHIN ITS INDIVIDUAL PERCENTAGE RANGE, AND THE BALANCE SUBSTANTIALLY IRON WITH RESIDUAL IMPURITIES IN ORDINARY AMOUNTS IN WHICH ALLOY THE CONCENTRATIONS OF VANADIUM AND CARBON WITHIN THE GIVEN LIMITS ARE ADJUSTED STO THAT THE RATIO OF VANADIUM IN EXCESS OF ABOUT 1% TO THE EXCESS CARBON IS ABOUT 4.2:1.