Description
Zhuzhou Zhongte Tungsten Molybdenum Alloy & Material Company
locates in Zhuzhou City, Hunan Province **- the world-renowned
research and production base for nonferrous metals,such as
Tungsten, Molybdenum, Tantalum, Niobium, Palladium, Rhenium,
especially a very important alloy metal - tungsten carbide.Engaged
in premium manufacturing and high-precision processing of tungsten
and molybdenum products, tungsten molybdenum alloy metals, hard
alloy metal products (such as tungsten steel, tungsten carbide, or
cemented carbide products). We are every experienced manufacturer
and exporter in the Tungsten Molybdenum Hard Metal Industry for
years.
Tungsten alloy, also named tungsten heavy alloy, generally is
refractory metal, which has two-phase composites consisting of
W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe, some tungsten alloys are
added Coã€Moã€Cr, etc. They have very high melting point and have
a density twice that of steel and are more than *0% heavier than
lead. Tungsten content in conventional heavy alloys varies from *0%
to *7% and is the reason for their high density (between *6.5g/cc
and *8.*5 g/cc). Nickel, iron and copper serve as a binder matrix,
which holds the brittle tungsten grains together and which makes
tungsten alloys ductile and easy to machine.The majority of current
usages for WHAs (tungsten heavy alloy) are best satisfied with the
W-Ni-Fe system. As its high density, it is mostly used as tungsten
alloy crankshaft for racing car weight. Tungsten heavy alloy such
as *3W*4.9Ni*2.1Fe and *5W*4Ni*1Fe represent common compositions,
and the addition of Co to a W-Ni-Fe alloy is a common approach for
slight enhancement of both strength and ductility. The presence of
cobalt within the alloy provides solid-solution strengthening of
the binder and slightly enhanced tungsten-matrix interfacial
strength. Cobalt additions of 5% to *5% of the nominal binder
weight fraction are the most common.
