Bozhong 2738 mod.HH
As the largest Bozhong 2738 mod.HH manufacturer in china, Bozhong Metal Group sales quality Bozhong 2738 mod.HH to customers all over the world.
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  • Description
  • Parameter
A HRC 40 prehardened mould steel
Premium mould steel that meets or exceeds standards for grades W 1.2738HH.

Material properties
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.

Chemical Analysis
Typical values (weight%)
C Si S Ni Cr Mo V B
0.26 0.10 0.002 0.30 1.70 0.52 0.05 +

Mechanical Properties
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

Delivery Conditions
Typical delivery sizes
Manufacturing process Thickness Width
Hot rolling 15 – 150 mm 1000 – 2000 mm
Hot forging 150 – 1200 mm 1200 – 2000 mm
Contact Us
Sales Manager: Janet Chang
Tel: +86-21-67897511 Fax: +86-21-67897500
Mobile: +86-13774328559
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