1.3343
Other1.3343
Tool and die steel for cutting, forming, punching and molding tools. Tungsten/molybdenum (≈6.3%/4.95%) give hot hardness and red-hardness for high-speed and hot-work tools. High chromium (≈4.15%) prov
Chemical Composition (%)
| C | 0.86 |
|---|---|
| W | 5.9 |
| MO | 4.7 |
| CR | 3.8 |
| V | 1.7 |
Applications
Tool and die steel for cutting, forming, punching and molding tools. Tungsten/molybdenum (≈6.3%/4.95%) give hot hardness and red-hardness for high-speed and hot
Available Forms
Bar, plate, forgings, tube
Uses
Tool and die steel for cutting, forming, punching and molding tools. Tungsten/molybdenum (≈6.3%/4.95%) give hot hardness and red-hardness for high-speed and hot-work tools. High chromium (≈4.15%) provides wear resistance and secondary hardening. Applied to blanks, punches, extrusion dies, shear blades, plastic-mold and cold-work tooling.
Heat Treatment
Powder/HSS: preheat 800–850 °C, austenitize 1180–1230 °C (salt or vacuum), quench, triple temper 540–570 °C to ≈64–66 HRC.
Precautions
Risk of quench cracking and distortion — use graded preheating, controlled cooling and multiple tempers. Avoid overheating the austenitizing temperature. Machine in the soft annealed condition; allow for dimensional change after heat treatment. Grind with coolant to prevent rehardening cracks.
Comments 0