Tungsten Standards

The tungsten standards include Chinese national standards, industrial standards and international standards.
GBT 3875 2006 Tungsten Plate
This Chinese national standard applied for tungsten plate produced by powder metallurgy.

GBT 3500 2008 Powder Metallurgy Terms
This standard introduces terms of powder metallurgy.

GBT 3457 1998 Tungsten Oxide
This standard specifies oxide kind, technology requirement, and inspection rules. The attachment is blue tungsten oxide testing method.

GBT 2967 2008 Cast Tungsten Carbide Powder
This standard is applicable to cast tungsten carbide powder used for surface reinforcement of oil drilling tools, building materials machinery, sugar cane crushing tools, grain machinery and other wear parts.

GBT 1479.1 2011 Powder Scott Density Testing
This standard shows powder Scott density testing.

GB 11247.2 1989 Tungsten Heater
This standard applied for vacuum coating tungsten heater.

GB/T 4295-2008 Tungsten Carbide Powder
This standard provides tungsten carbide powder requirement, testing method, inspection method, marks, packing, transport and storage.

GB/T 10116-2007 Ammonium Paratungstate
This standard provides ammonium paratungstate requirement, testing method, inspection method, marks, packing, transport and storage.

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