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Tungsten bar

Tungsten bar

Uses:


Tungsten is one of the most important alloy elements in producing special steel. At the same time of moderately reducing the steel elongation, the steel strength limit and yield point can be improved; it can also improve the hardness and steel wear resistance. Alloy structural steel has a broader application scope, which can be used to produce gun pipe, high temperature spring, high-speed diesel engine crank and high-pressure boil steel pipe and so on. In recent years, welding rod manufacturing enterprises was also widely used.
  The product quality standard implements national standard GB/GB3459-82
Appearance quality

The surface has gray or dark gray metallic luster.

Packing

The product is packed in wooden case.

Grade and chemical composition

Grade

W-1

W-2

W-3

W-4

Impurity content%

Pb

--

--

--

0.001

Bi

--

--

--

0.001

Sn

--

--

--

0.001

Sb

--

--

--

0.001

As

--

--

--

0.002

Fe

0.005

0.005

0.010

0.05

Ni

0.003

0.003

0.005

0.30

Al

0.002

0.002

0.005

0.005

Si

0.003

0.003

0.010

0.010

Ca

0.003

0.003

0.005

0.005

Mg

0.002

0.002

0.005

0.010

Mo

0.010

0.010

0.20

0.20

P

0.001

0.001

0.002

0.005

C

0.005

0.008

0.010

0.010

O

0.003

0.003

0.005

0.010

N

0.003

0.003

--

--


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