AISI M3 Type 2 (PM)
M3T2 PM represents a higher carbon-vanadium modification of the popular AISI M3 high- speed steel. The higher carbon and vanadium provides greater resistance to abrasion while maintaining an optimum combination of cutting ability, edge strength, red hardness, and >long service life. M3T2 PM is produced by the powder metallurgy process which provides excellent structural uniformity exhibiting finer carbide particle size while eliminating carbide segregation. In addition, finer and more evenly distributed sulfides provide improved machinability as annealed and excellent grindability as hardened. These unique properties make this ideal material for applications requiring both red hardness and wear resistance.
TYPICALAPPLICATIONS
Broaches, Drills, End Mills, Form Tools, Gear Cutters, Hobs, Lathe Tools, Milling Cutters, Punches, and Slitting Saws.
WEARRESISTANCE |
Highest |
TOUGHNESS |
Low |
RESISTANCE TO SOFTENING EFFECT OF ELEVATED TEMPERATURE |
Very High |
DEPTH OF HARDENING |
Deep |
MACHINABILITY |
Medium |
GRINDABILITY |
High |
DISTORTION IN HEAT TREATING |
Low |
SAFETY INHARDENING |
Medium |
RESISTANCE TO DECARBURIZATION |
Medium |
TYPICAL ANALYSIS |
Carbon (C) |
1.20 |
Manganese(Mn) |
.30 |
Silicon(Si) |
.40 |
Tungsten(W) |
6.00 |
Molybdenum(Mo) |
6.00 |
M3 TYPE 2 PM (UNS T11323) |
Chromium (Cr) |
4.25 |
Vanadium (V) |
2.95 |
Sulphur (S) |
.07 |
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