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河南省洛阳市洛龙区关林北街88号

Tungsten
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Tungsten Rod

  • Tungsten rod / Tungsten Bar polished tungsten rod surface is steel gray or silver white, high hardness, high melting point, low coefficient of thermal expansion, free from air erosion at normal temperature. Tungsten rods have special properties
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                    Tungsten rod / Tungsten Bar

    polished tungsten rod surface is steel gray or silver white, high hardness, high melting point, low coefficient of thermal expansion, free from air erosion at normal temperature. Tungsten rods have special properties such as low thermal expansion and good thermal conductivity, sufficient resistance to electrical resistance, and high modulus of elasticity. Therefore, tungsten rods are widely used in various fields. Such as manufacturing filaments, heaters, heating elements, optical instruments, chemical instruments, support lines, lead-in lines, printer needles, various electrodes and quartz furnaces, filaments, high-speed tools, automotive automatic products, sputtering targets, etc. The wire drawn from the tungsten rod can be used as a filament in an electric bulb, an electron tube, or the like. 

                    Tungsten rod supply status
Types of Forged tungsten rod (after drawing) straightening the tungsten rod surface condition
specification Ф0.8~Ф100mm Ф0.8~Ф3.2mm Black leather / car light / polished

Tungsten rod national standard diameter deviation and roundness
Diameter mm Black leather tungsten rod/rod Polished tungsten rod/rod
　 Diameter deviation % Roundness% Diameter deviation mm
0.8≤d≤3.0 ±2% 2 ±0.03
3.0<d≤6.5 ±2% 2 ±0.05
6.5<d≤13.5 ±2% 2 ±0.08
13.5<d≤25.0 ±2% 2 ±0.15
25.0<d≤50 ±2% 2 ±0.25

                    Tungsten rod use field
1. Glass smelting; 
2. High temperature furnace heating element, structural parts; 
3. Welding electrode; 
4. Filament 
 
             Tungsten rod surface color classification
1. Sintered tungsten rod surface is silver-gray metallic luster; 
2. Forged tungsten rod There is a layer of oxide on the surface, the surface is black; 
3. Polished tungsten rod, silver-gray metallic luster.

Advisory：Tungsten Rod

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