Tungsten Carbide Powder Specification

Specification of Tungsten Carbide Powder (WC Powder)

The technical conditions of the tungsten carbide powder GB/T4295-93 general implementation of the internal control standards, part of the enterprise conditions are given in Table A and Table B.

Table A Tungsten carbide powder quality specifications

Class	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 B Tungsten carbide powder chemical composition index

Grade \ content%	FWC-1	FWC-2
WC	≥99.8	≥99.7
Fe	≤0.04	≤0.06
Mo	≤0.010	≤0.015
Al	≤0.001	≤0.002
Si	≤0.01	≤0.01
Ca	≤0.005	≤0.008
Mn	≤0.002	≤0.002
Mg	≤0.002	≤0.004
Ni	≤0.005	≤0.008
Na	≤0.003	≤0.005