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Material Feature:
Tungsten, a metallic element.Atomic number 74, atomic weight 183.84.Gray or silver-white steel, high hardness, high melting point, no air erosion at room temperature;Tungsten is the refractory metal with the highest melting point.Generally, metals whose melting point is higher than 1650鈩?and have a certain amount of storage and those whose melting point is higher than zirconium melting point (1852鈩? are called refractory metals.Typical refractory metals are tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium, and titanium.As a refractory metal, tungsten has the most important advantages of good high temperature strength, good corrosion resistance to molten alkali metal and vapor, tungsten only in 1000鈩?above the oxide volatilization and liquid oxide.

Tungsten rod can be manufactured in random length pieces or cut to meet customers’ desired lengths. There are three different surface processes which are provided upon the desired end use:
Black tungsten rod – Surface is “as swaged” or “as drawn”; retaining a coating of processing lubricants and oxides;
Cleaned tungsten alloy rod- Surface is chemically cleaned to remove all lubricants and oxides; pure tungsten rod
Ground tungsten rod- Surface is centerless ground to remove all coating and to achieve precise diameter control.
Tungsten rod diameter deviation:
d/mmdiameter deviation
Black surface/%Ground surface/%
0.8鈮鈮?.0卤2卤0.03
3.0锛渄鈮?.5卤0.05
6.5锛渄鈮?1.0卤0.08

Surface requirement for tungsten rod
Surface stateSurface color
Froging surfaceNo cracks, layers, burrs,Oxidation films are allowed
Ground surfaceCracks, longitudinal grooves and rough marks are not allowedMetallic luster, does not allow significant oxidation color

Application for tungsten rod:
1.Tungsten bars are mainly used for processing tungsten parts or as a tool bit of processing lathe, conductors, steel-making burdening and additives;
2.They are also applied in crankshaft, cylinder burdening and electrodes for advanced automobiles;
3.They are also produced as components for manufacturing of guns, artillery, rockets, satellites, aircrafts and ships. In addition, tungsten bar can be also used as antiradiation material in nuclear industry.

Diameter deviation
d/mmdiameter deviation
Black surface/%Ground surface/%
0.8鈮鈮?.0卤2卤0.03
3.0锛渄鈮?.5卤0.05
6.5锛渄鈮?1.0卤0.08

Surface requirement for tungsten rod
Surface stateSurface color
Froging surfaceNo cracks, layers, burrs,Oxidation films are allowed
Ground surfaceCracks, longitudinal grooves and rough marks are not allowedMetallic luster, does not allow significant oxidation color
Buy Tungsten
website:http://www.hx-sputteringtarget.com/tungsten/