Tungsten Carbide Quality Specifications

       The technical conditions of tungsten carbide powder are GB/T4295-93, and the internal control standards of enterprises are generally implemented. The technical conditions of some enterprises are shown in Table 6-6-42 and Table 6-6-43.



Table 6-6-42 Quality specifications of tungsten carbide powder



 

Category Fisher Average Particle Size (μ) Total Carbon (%) Free Carbon (%)



 

WC-1 ≤1.0 6.08～6.18 ≤0.08



 

WC-2 1～1.99 6.08～6.18 ≤0.08



 

WC-3 2～3.99 6.08～6.18 ≤0.08



 

WC-4 4～5.99 6.08～6.18 ≤0.08



 

WC-5 6～7.99 6.08～6.18 ≤0.08



 

WC-6 8～11.99 6.08～6.18 ≤0.08



 

WC-7 12～15.99 6.08～6.18 ≤0.08



 

WC-8 ≥16 6.08～7.18 ≤0.08



 

Table 6-6-43 Chemical composition index of tungsten carbide powder



 

Grade\Content% WC Fe Mo Al Si Ca Mn Mg Ni Na



 

FWC-1 ≥99.8 ≤0.04 ≤0.010 ≤0.001 ≤0.01 ≤0.005 ≤0.002 ≤0.002 ≤0.005 ≤0.003



 

FWC-2 ≥99.7 ≤0.06 ≤0.015 ≤0.002 ≤0.01 ≤0.008 ≤0.002 ≤0.004 ≤0.008 ≤0.005



 

Note: Customers have special requirements for the above specifications, which can be negotiated specifically.