Bozhong 2738 mod.HH – Steels For Molds Tools And Die
A HRC 40 prehardened mould steel
Premium mould steel that meets or exceeds standards for grades W 1.2738HH.
Prehardened steel for medium and very large – size moulds and tools with good machinability. Consistent texturing and polishing improved by very low sulphur content. Reliable repair welding and good thermal conductivity.
For which tools
Plastic injection mould cores and cavities, large – size moulds for bumpers, dashboards, fenders, television panels, bottle crates, etc.
For which plastics
Thermoplastics, thermosetting plastics, ABS, transparent melts. Injection moulding, compression moulding, RIM moulding, etc.
Typical values (weight%)
Bozhong 2738 mod. HH is delivered quenched and tempered to 330 – 360 HB (34 – 38 HRC).
|Test thickness||Test hardness||Yield strength||Tensile strength|
|400 mm||345 HB||940 N/mm2||1095 N/mm2|
Typical delivery sizes
|Hot rolling||15 – 150 mm||1000 – 2000 mm|
|Hot forging||150 – 1200 mm||1200 – 2000 mm|