M2 High Speed Steel
Our M2 steel is a general purpose molybdenum-type high-speed steel exhibiting well-balanced toughness, wear-resistance and red hardness properties. This grade is commonly used in cold work punches and dies and cutting applications involving high-speed and light cuts. M2 high-speed steel is by far the most popular high-speed steel replacing T1 in most applications because of its superior properties such as its bending strength, toughness and thermo-plasticity—all of which are higher than T1 by 50%.
Density : 0.294 lb/in3 (8138 kg/m3)
Specific Gravity : 8.14
Modulus Of Elasticity : 30 x 106 psi (207 GPa)
Machinability : 50-60% of a 1% carbon steel
Grade Brief:
Bharti Steels is the largest Supplier & Stockiest of M2 in India.
M2 is a standard high-speed steel grade. Having balanced alloy composition forms the basis of its high toughness and good cutting edge retention, rendering it suitable for a large variety of applications. This grade is mainly used for all metal-cutting tools for roughing or finishing such as twist drills, diverse milling cutters, thread dies, broaches, reamers, countersinks, thread chasers, circular saw segments, shaping tools and woodworking tools. Also highly suitable for cold-forming tools such as cold extrusion rams and dies, as well as cutting and precision cutting tools, plastic moulds with elevated wear resistance and screws.
A general-purpose high-speed steel of the molybdenum type, M2 steel has balanced toughness, wear-resistance, and red hardness characteristics. This grade is frequently used in cold work punches, dies, and high-speed, light-cutting applications. Due to its better qualities, such as its bending strength, toughness, and thermo-plasticity, all of which are 50% greater than T1, M2 High Speed steel is by far the most often used high-speed steel in place of T1 in most applications. Group M steels make up over 95% of the high-speed steels produced in the US.
Except for M6, all varieties of steel from M1 through M10 contain tungsten, and none of these steels contain cobalt. Tools constructed of this type of steel can be coated with titanium nitride, titanium carbide, and several other materials using a physical vapor deposition technique to increase their functionality and durability.
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Steel Properties
Standard high-speed steel grade. Its well-balanced alloy composition forms the basis of its high toughness and good cutting edge retention, rendering it suitable for a large variety of applications.
Mechanical Properties:
| Tensile strength | 1000-1400 MPa |
| Yield Strength | 3250 MPa |
| Abrasion (loss as-hardened; ASTM G65) | 25.8 mm3 |
| Impact Toughness | 67 J/cm2 |
| Hardness | 262 HRC |
| Modulus of elasticity | 207 GPa |
Physical Properties
These physical properties are approximate values and can vary depending on the specific composition , heat treatment and manufacturing processes used for M2 steel.
| Thermal Conductivity at °C | 20 | 350 | 700 |
| W/(m*K) | 32.8 | 23.5 | 25.5 |
| MAXIMUM | TYPICAL | ||||||
|---|---|---|---|---|---|---|---|
| Carbon | Chromium | Tungsten | Molybdenum | Vanadium | Cobalt | Annealed | Tempered |
| C | Cr | W | Mo | V | Co | Hb | HrC |
| 0.85 | 4.15 | 6.15 | 5.1 | 1.95 | – | 255 | 64 |