M-3 / M2 HSS | Ultra-Hard High-Speed Steel Repair Welding Wire
M-3 / M2 HSS โ Ultra-Hard High-Speed Steel Repair Welding Wire
Designed for high-speed steel cutting tools, punches, and heavily worn cutting surfaces that require long-lasting edge performance.
Typical hardness: HRC 61 - 63
Recommended processes: TIG welding and precision repair welding
Alloy / standard reference: AISI M2 | JIS SKH51 | EN 1.3343 / HS6-5-2C
Key Features
- High as-welded hardness
- Excellent red hardness
- Helps extend cutting-edge service life
- Developed for high-speed steel tool repair
Typical Applications
- High-speed steel cutting tools
- Heavy-duty punches
- Cold-heading dies
- High-wear precision cutting edges
Application guidance: High-speed steel repair requires strict temperature control together with suitable preheating, interpass-temperature control, and post-weld treatment.
The information above is provided as a typical selection reference. Final supply condition, hardness, chemical composition, and welding procedure shall be confirmed by the order and the corresponding batch material certificate.