tool steel din 2738

  Product Description AISI P20+Ni, DIN/W.Nr. 1.2738, 718, GB 3Cr2MnNiMo 1.A pre-hardened grade specially designed for plastic mold industry. Chromium, Molybdenum, Nickel carbon and manganese additions are optimized to have a fully martensite-bainite microstructure after quenching.  2.The high nickel content (1%) is specially adapted to ensure a perfect homogeneity of structure and hardness through thickness even for very thick blocks. 3. Uniform hardness across the cross-section. 4. Good polishability. 5. Good machinability. 6.Hardenable and temperable plastic mould steel.

Heat Treatment:
Forge: at 900°C-1100°C Cool slowly and anneal immediatedly
Anneal: at 710°C-740°C Cool slowly in furnace
Stress Relieve: at to 530°C-580°C Cool in still air
Harden: Preheat at 500°C-550°C raise to 840°C-880°C Cool in air, iol or into salt bath held at 200°C-300°C and then air or oil cooling according to the steel 

APPLICATIONS:  Mould for TV housings and rear walls, copier housings; shock-absorber moulds; moulds for dashboards and large outside body parts; waste bin moulds; pressure casting frames.   Chemical Composition (%)

C	Si	Mn	S	P	Cr	Mo	Ni
0.32~040	0.20~0.40	1.10~1.50	≤0.03	≤0.03	1.80~2.20	0.25~0.40	0.85~1.15

  Packaging & Shipping 1.All the round bar and flat bars are fixed by the steel wire in the container . 2.On the bottom of container , we also put the wooden dunnage between the material and container bottom 3.As customer requirements.  FAQ   our main products: