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Pure Tungsten Rod
Pure tungsten rods are made from pure tungsten powder, which is
usually quite high in purity, 99.95%. Tungsten metal can be
processed by forging, extrusion, drawing, rolling, etc. Pure
tungsten ingots use tungsten powder as raw material, and pure
tungsten ingots made by powder metallurgy are the raw materials for
processing tungsten rods. Tungsten rods have excellent heat
resistance, heat emission, strength and hardness. Therefore, they
are used in various applications, valve anchors such as discharge
electrodes, tungsten inert gas (TIG) rods, probe needles.
Pure tungsten rod specification:
1.Material:W>99.95% pure tungsten
2. Size: diameter 10*100mm (various sizes are available)
3. Material density: 19.3 g/cm3
4. Melting point: 3420℃
5. Features: low thermal expansion rate, good thermal conductivity, high elastic modulus, low resistivity
6. Usage: Spot welding electrodes.
7. Surface: sintering/forging/swaging/rolling/grinding
2.Tungsten Rods surface finish:
Black:Surface is "as swaged" or "as drawn"; retaining a coating of
processing lubricants and oxides.
Cleaned - Surface is chemically cleaned to remove all lubricants
and oxides.
Ground - Surface is centerless ground to remove all coating and to
achieve precise diameter control.
3. Tungsten Rods available size:
Forged rods size: Diameter(2-100mm)*Length<2500mm
Strainghtened rods after drawn diameter 0.3-3.2mm
Tungsten Rod Picture:
Tungsten Content | Type | Diameter (mm) | Dia.Tolerance (mm) | Length (mm) | L tolerance (mm) |
99.95% | Sintering rod | 40-100 | ±3 | 500max | ±5 |
99.95% | Forged rod | 20-80 | ±2 | 800max | ±5 |
99.95% | Ground rod | 2-60 | ±0.1 | 600max | ±1 |
4. Tungsten rods chemical composition
Content of Tungsten | Content of all other elements | Content of each element |
≥99.95% | ≤0.05% | ≤0.01% |
5. The application & features of tungsten rods:
Main Characteristics:
High melting point (3410 centigrade)
Low thermal expansion
High electrical resistance
Low vapour pressure
Good thermal conductivity
High density