Plastic Molds
1.1730
VR Holder
1.2311
1.2312
VR 16
VR 200
VR 300
1.2738
VR 400
1.2083
1.2085
VR Stainless
1.2316
1.1730
UNI EN ISO 4957
Surface hardenable tool steel with hard surface and tough core. Used for cold heading dies, top and bottom plates for plastic die casting, die casting tools, hand tools, tongs, agricultural tools, blanking tools, leather knives.
Supply conditions
Annealed to max 207 HB
Heat treatment
Annealing
- Heat to 680-710 C
- Furnance cooling
Stess relieving
- Heat to 600-650 C
- Furnance cooling
Hardening
- Preheating 600-650 C
- Heat to hardening temperature 800-830 C and hold at temperature
- Cooling in water
- Hardness after quenching: HRC 57
Tempering
- To be carried out after hardening in the range of 300-350 C for 1