M2 high speed steel bar is a tungsten-molybdenum high speed tool steel with a strong balance of wear resistance, toughness and red hardness. It is widely used for cutting tools, drills, taps, milling cutters, reamers, broaches and precision tooling. M2 HSS bar can be supplied as round bar, flat bar or forged bar in annealed condition for machining and heat treatment.
Materials can be cut to required sizes according to customer specifications or project needs.
Different surface finishes can be supplied according to product type and application requirements.
Processing services such as cutting, machining, heat treatment or surface finishing can be arranged upon request.
Products are packed for international transportation with flexible delivery support for global buyers.
For high-speed cutting tools and wear-resistant tool components.
Suitable for drill bits, milling cutters, taps, broaches, punches, cutting tools, cold-work tools, and highly wear-resistant industrial blades. Ideal for machining applications requiring high hardness, red hardness, and superior wear resistance.|
Item |
Typical Information |
|
Product Name |
M2 High Speed Steel Bar |
|
Equivalent Grades |
AISI M2 / EN 1.3343 / JIS SKH51 / HS6-5-2C |
|
Product Form |
Round bar, flat bar, forged bar, tool blank |
|
Standard Reference |
ASTM A600, EN ISO 4957 or customer specification |
|
Supply Condition |
Annealed, forged, rolled, hardened upon request |
|
MOQ |
Usually 1 ton or negotiable for stock diameters |
|
Application |
Cutting tools, drills, taps, milling cutters, punches |
|
Property |
Typical Range / Note |
|
Annealed Hardness |
Usually ≤255 HB depending on standard |
|
Hardened Hardness |
Often around 62–65 HRC after proper heat treatment |
|
Key Property |
Red hardness, wear resistance and cutting performance |
|
Note |
Final properties depend on heat treatment and tool geometry |
|
C |
Si |
Mn |
Cr |
Mo |
W |
V |
P |
S |
|
0.78–0.88 |
0.20–0.45 |
0.15–0.40 |
3.75–4.50 |
4.50–5.50 |
5.50–6.75 |
1.75–2.20 |
≤0.030 |
≤0.030 |
Q: What is AISI M2 high speed steel round bar?
A: M2 round bar is widely-used molybdenum-tungsten high-speed tool steel. It maintains high hardness under high cutting temperature, which is known as good red hardness, ideal for various cutting tool production.
Q: What standards and equivalent grades for M2 steel?
A: Our M2 bars comply with ASTM A600 standard. Equivalent grades include GB W6Mo5Cr4V2, JIS SKH51 and DIN 1.3343. Each batch is attached with complete mill test certificate.
Q: What sizes and bar forms are available?
A: Available diameter ranges from 6 mm to 200 mm. Options contain hot-rolled, forged, peeled and precision ground bars. Custom cut-to-length service is acceptable according to customer drawing.
Q: What are the main application scenarios of M2 round bar?
A: It is mainly applied to make drills, end mills, taps, reamers, saw blades, gear cutters and broaches. It also works for punches and woodworking tools requiring high hardness and wear resistance.
Q: What hardness can M2 reach after heat treatment?
A: The supply annealed hardness is ≤255 HB. After correct quenching and triple tempering process, M2 can reach 62-66 HRC with balanced wear resistance and red hardness for cutting service.
