Premium mould steel that meets or exceeds standards for grades W 1.2711 and W 1.2714.

Material properties Prehardened steel for medium and large – size moulds and tools with high wear resistance. Consistent texturing and polishing improved. Reliable repair welding and high dimensional stability.

For which tools Plastic injection mould cores and cavities, large – size moulds, compression dies under high mechanical and thermal stresses.

For which plastics Thermoplastics, long fibre reinforced thermoplastics (LFT), thermosetting plastics, ABS, transparent melts. Injection moulding, compression moulding, RIM moulding, etc.

Chemical Analysis
Typical values (weight%).

C	Mn	Ni	Cr	Mo	B
0.31	1.15	0.50	2.30	0.70	+

Mechanical Properties
Bozhong 400 is delivered quenched and tempered to 350 – 380 HB (37 – 41 HRC).

Test thickness	Test hardness	Yield strength	Tensile strength
560 mm	370 HB	1000 N/mm²	1215 N/mm²

Delivery Conditions
Typical delivery sizes

Manufacturing process	Thickness	Width
Hot rolling	15 – 150 mm	1000 – 2000 mm
Hot forging	150 – 800 mm	1200 – 2000 mm