High Performance Prehardened Plastic Mould Steel With High Hardness

Delivered Condition:
Prehardened to 341-400 HB

Comparable Standard:
AISI P20 Modified
W.Nr 1.2738 Modified


  • Through special composition ratio, LKM738MHH have better performance in etchability and weldability than conventional W.Nr 1.2738. Its thermal conductivity is also better than other mould steel of the same type, and the hardness was uniform across the cross-section

Major Application:

  • Large plastic mould with high photo-etching requirement
  • Moulds for dashboard and large outer body parts
  • Moulds for TV and copier housing


 LKM Steel Rainbow Chart