M-2 High Speed Tool Steel

M2 (UNS T11302) is a high speed tungsten-molybdenum tool steel. It has high wear resistance and it is usually used to manufacture a variety of tools, such as drill bits, taps and reamers. Its decarbonization sensitivity is a little bit high.

M2 tool steel designation

AISI M2 / ASTM M2

ASTM A600

SAE J437

SAE J438

DIN 1.3343

JIS SKH9

Available forms

M2 round/square bar

M2 plate

M2 Flats

Chemistry composition

CCrMnSiPSWVNiFe
0.78-1.053.75 – 4.500.15 – 0.400.20 – 0.450.03 max0.03 max5.50 – 6.751.75 – 2.200.3Balance

Physical and Mechanical Properties

Density:7.72 to 8.0 g/cm3

Thermal expansion at 20-200° C: 9.7 10⁶m/(m*K)

Hardness, Rockwell C: 65 HRC.

Thermal Conductivity at 20°C: 32.8 W/(m*K)

Applications

For all metal-cutting tools for roughing or finishing such as Blanking Dies, Lathe tools, Planer Tools, Boring Tools, Lamination Dies, Router Bits, Shear Blades, Thread Chasers, Twist Drills, Wood Knives, Mandrels, Milling Cutters, Gear Cutters, Center Drills

Features

After heat treatment, its hardness is the same as T-1, but its toughness and thermoplasticity are higher than T-1 by 50%.

LKALLOY is a leading Supplier of AISI M2 Steel. We mainly stocks and produces AISI M2 bar, AISI M2 flats, AISI M2 plates and other forms in various size and specifications.