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high quality 99.95% pure tungsten bar Specification 1.Material: tungsten 2.Pure: 99.95% 3.Surface: black, burnishing, polishing
Tungsten
content
Type
Diameter (mm)
Dia.tolerance (mm)
Length (mm)
L tolerance (mm)
Liner rate
99.95%
Sintering bar
40-100
±3
500max
±5
±5%
Forged bar
20-80
±2
800max
±5
±2%
Ground bar
2-60
±0.1
650max
±1
±0.5%
Application
Be used for drawing tungsten wires, electrodes, heaters in high temperature vacuum furnace and so on.
Chemical Compositions
Grade
Tungsten content
Contents of Impurity Elements
Total Content
Content of each element
WAL1,WAL2
99.95%min
0.05%nax
0.01%max
W1
99.95%min
0.05%nax
0.01%max
W2
99.92%min
0.08%nax
0.01%max
Dimension & Tolerance
Varity
DiameterRange
Diameter Tolerance
MIN
MAX
Black bar wroughted
≥3.0mm
±0.05mm
±0.10mm
Straightened bar
0.5→3.0mm
±0.01mm
±0.01mm
Ground bar
≥0.8mm
±0.01mm
±0.05mm