Molybdenum Tungsten

Molybdenum Tungsten

The tungsten content of most molybdenum tungsten alloy is from 30% to 50%. There are two producing methods to making molybdenum tungsten alloy: sintered powder metallurgy processing and smelting processing. They can be made into various shapes, such as: rod, sheet, wire and so on. The molybdenum tungsten alloy which contains 30% tungsten has the property of excellent corrosion resistance to liquid zinc. It can be used as mixers, pipes, containers and other components in zinc industry.

In molybdenum-tungsten alloys, the higher the content of tungsten, the higher the melting point of the alloy will be. According to the different proportion of alloy, the tungsten molybdenum alloy melting point range is between 2620 ℃ to 3410 ℃.Therefore, you can select the appropriate alloy proportion according to the working environment and specific requirements.

The higher the content of tungsten, the higher the density and lattice parameter of tungsten-molybdenum alloy will be. The hardness and strength of the same alloy will also increase. When the tungsten-alloy content is between 90% and 100%, the alloy will have the highest room temperature hardness. The hardness is more than twice of pure molybdenum (3530~3860MPa). When the tungsten content is between 70% and 85%, the alloy will have the highest high temperature hardness.

Hardness of Molybdenum Tungsten Alloy
The Content of Alloys /%	Vickers hardness/MPa
	20°C	427°C	871°C	1316°C	1649°C
100%Mo	1764 MPa	637 MPa	568 MPa	206 MPa	176 MPa
Mo18.6%W	1891 MPa	990 MPa	813 MPa	441 MPa	216 MPa
Mo28.9%W	1940 MPa	1019 MPa	853 MPa	490 MPa	265 MPa
Mo40.1%W	2009 MPa	1068 MPa	951 MPa	568 MPa	294 MPa
Mo49.1%W	2186 MPa	1137 MPa	980 MPa	686 MPa	372 MPa
Mo49.7%W	2273 MPa	-	-	-	-
Mo59.8%W	2372 MPa	1235 MPa	1039 MPa	784 MPa	412 MPa
Mo70.8%W	2587 MPa	-	-	-	-
Mo72.2%W	2685 MPa	1343 MPa	1117 MPa	892 MPa	510 MPa
Mo84.4%W	3185 MPa	1176 MPa	902 MPa	853 MPa	500 MPa
Mo89.9%W	3499 MPa	-	-	-	-
Mo90.4%W	3538 MPa	1156 MPa	902 MPa	843 MPa	472 MPa
Mo97.3%W	3587 MPa	902 MPa	833 MPa	764 MPa	402 MPa
Mo99.9%W	3861 MPa	-	-	-	-

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