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DRM2<br />
WARM and COLD FORGING DIE <strong>STEEL</strong><br />
DRM2 is a matrix type high speed tool steel available for warm and cold forging tools<br />
where critical performance is required. DRM2 prolongs service life due to its higher<br />
hardness and toughness than those of conventional grades.<br />
TYPICAL APPLICATIONS<br />
Used for warm and cold forging dies and punches.<br />
TYPICAL ANALYSIS<br />
TYPE DRM2<br />
Carbon (C) .70<br />
Tungsten (W) 1.00<br />
Molybdenum (Mo) 2.40<br />
Chromium (Cr) 5.50<br />
Vanadium (V) 1.00<br />
ANNEALING (c)<br />
Temperature<br />
Slow cooling<br />
Typical annealed hardness, Brinell<br />
HARDENING<br />
Rate of heating<br />
Preheat temperature<br />
Hardening temperature<br />
1472-1616°F<br />
(800-880°C)<br />
≤235HB<br />
Moderately from preheat<br />
1742°F (950°C)<br />
1922-2012°F<br />
(1050-1100°C)<br />
Time at temperature, minutes<br />
20-30 per inch of thickness<br />
for material under 4"<br />
10-20 per inch of thickness<br />
for material 4" and over<br />
Quenching<br />
OQ-Oil Quenching,<br />
GC-Gas Quenching<br />
in vacuum furnace,<br />
Salt Bath, Similar to conventional<br />
high speed steels<br />
TEMPERING<br />
Minimal Double Temper<br />
AC-Air Cooling,<br />
Tempering temperature<br />
1022-1148°F<br />
(550-620°C)<br />
Approx. tempered hardness, Rockwell C<br />
58-62 HRC<br />
WEAR RESISTANCE<br />
Good<br />
TOUGHNESS<br />
High<br />
RESISTANCE TO SOFTENING EFFECT OF<br />
ELEVATED TEMPERATURE<br />
High<br />
MACHINABILITY<br />
Better and faster than<br />
conventional high speed steels<br />
GRINDABILITY<br />
Better and faster than<br />
conventional high speed steels<br />
14-18
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