This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage, quality certificate and contract (or order) content of cobalt-tungsten carbide composite powder. This standard applies to cobalt-tungsten carbide composite powder for flame spraying, supersonic flame spraying, plasma spraying and explosive spraying.
YS/T 511-2014 Referenced Document
GB/T 1479.1 Metallic powders—Determination of apparent density—Part 1:Funnal method
GB/T 1480 Metallic powders.Determination of particle size by dry sieving
GB/T 20255.2 Methods for chemical analysis of hardmetals. Determination of cobalt,iron,manaanese and nickel contents. Flame atomic absorption spectrometric method
GB/T 5124.1 Methods for chemical analysis of hardmetals.Determination of total carbon content.Gravimetric method
GB/T 5124.3 Hardmetals—Part 3:Determination of cobalt—Potentiometric method*, 2017-10-14 Update
GB/T 5314 Powders for powder metallurgical purposes.Sampling