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Help Center99.95% Raw Tungsten Bar Wolfram Rod For Sale
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raw tungsten bar ; wolfram rod ; tungsten bar
PRODUCT DESCRIPTION
p
Grade: W1
Standard: ASTM B760
Purity: 99.95% min
Density: 19.1g/cm3
Size: OD1.0mm min.*L2000mm max
Uses: it is suitable for the manufacture of vacuum devices and electric light source parts.
Specifications and Model
Diameter mm | Black tungsten rod | Polished tungsten rod | Length deviation mm | ||
Diameter deviation % | Roundness % | Diameter deviation mm | Roundness% | ||
0.8≤d≤3.0 | ±2 | 2 | ±0.03 | 0.03 | L≤50±0.550<L≤100±1.0100<L ≤300±1.5300<L≤500±2.0500<L ≤100±2.51000<L≤2000±5 |
3.0<d≤6.5 | ±2 | 2 | ±0.05 | 0.05 | |
6.5<d≤13.5 | ±2 | 2 | ±0.08 | 0.08 | |
13.5<d≤25.0 | ±2 | 2 | ±0.15 | 0.15 | |
25.0<d≤50 | ±2 | 2 | ±0.25 | 0.25 | |
Processing methods
Sintering, forging, swaging, rolling, polished
The quality requirements of Tungsten rod surface
| Surface state | Surface color |
Forged tungsten rod | No cracks, delamination, burrs, allowing a slight traces of forging | Allows oxygen Membrane |
Sintering tungsten rod | No cracks, burrs and obvious ripples, thread, pits, allowing a slight nick does not affect the use of trench | Black to dark gray |
Polished tungsten rod | Allowed to have cracks, vertical lines and traces of roughness |
Grade: W1
Standard: ASTM B760
Purity: 99.95% min
Density: 19.1g/cm3
Size: OD1.0mm min.*L2000mm max
Uses: it is suitable for the manufacture of vacuum devices and electric light source parts.
Specifications and Model
Diameter mm | Black tungsten rod | Polished tungsten rod | Length deviation mm | ||
Diameter deviation % | Roundness % | Diameter deviation mm | Roundness% | ||
0.8≤d≤3.0 | ±2 | 2 | ±0.03 | 0.03 | L≤50±0.550<L≤100±1.0100<L ≤300±1.5300<L≤500±2.0500<L ≤100±2.51000<L≤2000±5 |
3.0<d≤6.5 | ±2 | 2 | ±0.05 | 0.05 | |
6.5<d≤13.5 | ±2 | 2 | ±0.08 | 0.08 | |
13.5<d≤25.0 | ±2 | 2 | ±0.15 | 0.15 | |
25.0<d≤50 | ±2 | 2 | ±0.25 | 0.25 | |
The quality requirements of Tungsten rod surface
| Surface state | Surface color |
Forged tungsten rod | No cracks, delamination, burrs, allowing a slight traces of forging | Allows oxygen Membrane |
Sintering tungsten rod | No cracks, burrs and obvious ripples, thread, pits, allowing a slight nick does not affect the use of trench | Black to dark gray |
Polished tungsten rod | Allowed to have cracks, vertical lines and traces of roughness |
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