300HB (32 HRC) prehardened grade specialty designed for plastic mold industry, for medium and very large – size moulds and tools with good machinability. Consistent texturing and polishing improved by very low sulphur content and hardness homogeneity. Reliable repair welding and high thermal conductivity.
Plastic injection mould cores and cavities, large – size moulds for bumpers, dashboards, television panels, bottle crates, etc.
Thermoplastics (PE, PP, PS), thermosetting plastics, transparent melts. Injection moulding, compression moulding, RIM moulding, etc.
• EN: 40 CrMnNiMo 8-6-4
• Werkstoff: W1.2738
• AISI: ≈ P20 + Ni
Typical values (weight%). Typical Industeel analysis
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