Tungsten Alloy for Die Casting

Tungsten alloy has low thermal expansion and high thermal conductivity which are fundamental for heat checking resistance. The low thermal expansion guarantees low thermal stress. A high thermal conductivity reduces the thermal gradients and thereby the thermal stress by cooling the casting faster.
What is more, low erosion. Erosion of the die is important. Tungsten alloy material provides a low erosion rate due to its chemical resistance. This occurs because molten aluminum dissolves tool steel. Aluminum does not dissolve tungsten alloy, therefore you have a longer die life. This means you don't have to change the die or core rods as often, which results in less downtime. Die casting life can be up to 10 times longer with tungsten alloy.

Besides, we can manufacture tungsten alloy welding rod with the similar or even better properties to one type of famous brand rod. Properties of tungsten alloy for die casting have been shown as follows:

Products	Normal Composition	Density(g/cm3)	UTS(N/mm2)	Hardness (HRC)	Applications
WHAMo-90	90%W4Mo4Ni2Fe	17.25	965	34
WHAMo-93	93%WNiFeMo	17.8	885	30	Extrusion Dies
WHAMo-90	90%WNiFeMo	17.3	960	32	Die Casting Tools, Extrusion Tools
WHAMo-86	86%WNiFeMo	16.7	1075	36	Die Casting Tools

Typical Properties of WHAMo-90 for Die Casting

Chemistry:	90%W, 4%Ni; 4%Mo; 2%Fe
Density:	0.62lb/in3	17.25g/cm3
Hardness:	34HRC	67HRA
Ultimate Tensile Strength:	140ksi	965Mpa
RT Yield Strength (.2%)	125ksi	862Mpa
RT Elongation (in 2'')	3%

Chinatungsten specializes in manufacturing and offering tungsten alloy for die casting. Any enquiry will be warmly welcomed by email to sales@chinatungsten.com or telephone to 0086 592 5129696.