AISI M2 Steel, also referred to as JIS SKH51 and DIN 1.3343 steel, is a tungsten-molybdenum high-speed steel with excellent properties. Its well-balanced carbon composition ensures high toughness, making it resistant to large impact forces.

This steel is widely used in the manufacturing of various cutting tools that require exceptional wear resistance and toughness. Applications include pinion cutters, planers, milling cutters, turning tools, and drill bits, among others

With AISI M2 Steel, you can rely on its hardness, red hardness, good thermoplasticity, and outstanding toughness to enhance the performance of your tools.

AISI M2 Steel exhibits remarkable characteristics that make it a preferred choice for cutting applications. In its factory state, it boasts a hardness of ≤255HB. During heat treatment, the recommended curing temperature ranges from 1220℃ to 1240℃.

After heat treatment, the hardness can reach ≤63 HRC, ensuring excellent wear resistance and toughness. One of the key advantages of AISI M2 Steel is its even distribution of carbide, which further enhances its toughness.

This high-speed tool steel is ideal for making milling cutters, reamers, broaches, gear cutters, and other industrial tools that demand reliability and durability.

1.3343 Steel Characteristics
Hardness (factory state): ≤255HB
Curing Temperature: 1220℃-1240℃
Hardness (after heat treatment): ≤ 63 HRC
It is a good choice for cutting applications due to its high wear resistance and toughness.
Carbide evenly distributed and high toughness.
Can be used to make milling cutters, reamers, broaches, gear cutters and other industrial tools.