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Tungsten powder

Tungsten powder appearance: Tungsten powder is dark grey, spraying tungsten powder is bright grey.

Application: For large W plate, W-Re thermocouple, contact alloy etc.
Specifications:

Grade Main Composition Min. W (%) Oxygen Content (%) Particle Size Specs (μ m)
FW-1 ≥99.9 ≤0.20 Negotiated by Both Sides
FW-2 ≤0.25
FWP-1 ≤0.20

Impurity Content:

Grade FW-1 FW-2 FWP-1
Impurity Content Max. (%) Pb 0.0001 0.001 0.001
Bi 0.0001 0.001 0.001
Sn 0.0001 0.001 0.001
Sb 0.001 0.001 0.001
As 0.002 0.002 0.002
Fe 0.005 0.020 0.030
Ni 0.002 0.005 0.005
Cu 0.001 0.003  
Al 0.001 0.003 0.005
Si 0.002 0.010 0.010
Ca 0.001 0.005 0.005
Mg 0.001 0.005 0.005
Mo 0.005 0.020 0.020
P 0.001 0.005 0.005
C 0.005 0.008 0.010
K 0.015 0.002  
Na 0.015 0.002  
Co 0.001    
Cr 0.001    
Ti 0.001    
V 0.001    
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