2012年3月26日星期一

Tungsten Bars


                                  Tungsten Bar

Description
Grade: W-1 W-2 W-3 W-4  W-1
Purity: W>99.95%
Density≥17.0g /cm3
Appearance: Shine with grey or dark grey metallic luster.
Application:

1. Tungsten bar is mainly used to found ingredient of material, cutter and heads, tungsten wire for lights instruments and conductor of heat, crankshaft and cylinder barrel of advanced automobile, ingredient of kinds of heat-resistant steel.

2. Tungsten bar is also used to make guns, artillery rockets, satellite airplane and ship.

3. Purified tungsten bar is used as a material for making special steels and tungsten wire, or used in electric contact points. Tungsten bar with impurities is used to procedure bulb filaments or electron tube filaments, which are guaranteed to have remarkable resistance to high temperature.

The impurity content accords with GB3459-82 
 
Description
Code
W
Density
Size
Applications
(%)
g/cm3
Tungsten bars
TW-2
99.95
17.5
12 x 12 x 400
W rods and contacts
Tungsten bars 4r drawing wire
TW-2.1
99
14 x 14 x 450
Doped W bars suitable for drawing wire and for stirring rods in the smelting of rare earth metals
TWA1
16 x 16 x 600
Tungsten bars 4 steel smelting
TW-1
99.95
 
High purity W bars suitable for steel smelting W bars of an industrial grade suitable for steel smelting
TW-4
99.9
Tungsten blanks
BPW
99.95
18
(20-50) x (20-300) x (20-600)
Suitable for rolling tungsten plates

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