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Product Standards

GB/T 14992 Classification and grade of superalloys and intermetallics high temperature materials;
GB/T 3620.1 titanium and titanium type and chemical composition;
GB/T 9943 high speed tool steel;
GB/T 1220 stainless steel bar;
GB/T 1480 metal powder dry sieving method for determination of particle size;
Particle size distribution laser diffraction method;
GB/T 1482 Determination of fluidity of metallic powders Standard funnel method (Hall flow meter)
GB/T 1479.1 Metallic powders - Determination of bulk density - Part 1: Funnel method;
GB/T 5162 Determination of tap density of metallic powders;
GB/T 233 (all parts) Chemical analysis methods for steel and alloys;
GB/T 11261 Iron and steel - Determination of oxygen content - Pulsed heating inert gas - Infrared absorption method;
GB/T 20123 Iron and steel - Determination of total carbon and sulfur content - Infrared absorption method after burning at high frequency induction furnace;
GB /T 20124 Iron and steel - Determination of nitrogen content - Inhalation of inert gas;
GB/T 20127 (all parts) - Determination of trace elements in steel and alloys.