Ameralloy D-2 is a premium quality,
high carbon/high chrome air hardening
steel for use in high volume production
applications. It is recommended for dies
with production quotas in the hundreds,
thousands, or millions of pieces at minimum
cost. Ameralloy D-2 resists edge chipping,
sometimes experienced with other types of
die steel. This decreases both the number
and depth of grinds necessary to maintain
Ameralloy D-2 hardens with a minimum amount of distortion and is perfectly suited for dies where close size tolerance is critical. Ameralloy D-2 is easier to machine than other high carbon/high chrome die steels.
Heating – Ac range 1520° to 1600°F
Cooling – Ar range 1390° to 1300°F
Ameralloy-tested hardness and fracture grain ratings for various air-quenching temperatures:
|Quenching Temperature (°F)||Fracture Grain Size||Rockwell C|
Rockwell hardness from various heats of steel, air-quenched from 1850°F and tempered a minimum or 2 hours per inch of cross section.