Ameralloy Oil is an electric furnace, fully deoxidized tool steel and is produced under conditions of strictest tool steel practice. Ameralloy Oil is one of the best general purpose oil hardening tool and die steels. It machines with relative ease to a high finish. With reasonable care, Ameralloy Oil can be hardened safely with very little dimensional change. It has a good combination of abrasion resistance and toughness for a wide variety of tool and die applications.
Heating – Ac range 1390° to 1450°F
Cooling – Ar range 1280° to 1260°F
Ameralloy-tested hardness and fracture grain ratings for various oil-quenching temperatures:
|Still Air Quenching Temperature (°F)||Fracture Grain Size||Rockwell C|
Resulting Rockwell hardness for various tempering temperatures. Obtained from 1” round samples oil-quenched from 1475°F and tempered for 2 hours.
|Tempering Temperature (°F)||Rockwell C|
Above results on 1” diameter specimens may be used as a guide in tempering tools to desired hardness. Tools of heavy section or mass may be several points lower in Rockwell hardness for a given treatment.