YS/T 59-1993 Nitride coating agent is a type of nitride agent used for hot spray welding. It is a kind of self-fluxing alloy powder composed of Ni-Cr-B-Si system and WC

GB 223.1 GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method GB/T 230.2-2002 Metallic rockwell hardness test—Part 2:Verification and calibration of hardness testers(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.2-2012 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines GB/T 230.2-2022 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines and indenters GB/T 230.3-2002 Metallic rockwell hardness test—Part 3:Calibration of hardness reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2012 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2022 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks GB/T 1479-1984 Metallic powders—Determination of apparent density—Part 1:Funnel method GB/T 1479.1-2011 Metallic powders—Determination of apparent density—Part 1:Funnal method GB/T 1479.2-2011 Metallic powders—Determination of apparent density—Part 2:Scott volumeter method GB/T 1479.3-2017 Metallic powders—Determination of apparent density—Part 3:Oscillating funnel method GB/T 1480-1995 Determination of particle size for metallic powders—Dry sieving GB/T 1480-2012 Metallic powders—Determination of particle size by dry sieving GB/T 1482-1984 Metallic powders—Determination of flowability by means of a calibrated funnel (Hall flowmeter) GB/T 1482-2010 Metallic powders—Determination of flow time by means of a calibrated funnel (Hall flowmeter) GB/T 1482-2022 Metallic powders—Determination of flow rate—Calibrated funnel methods(Hall flowmeter) GB/T 5314-1985 Powders for powder metallurgical purposes—Sampling GB/T 5314-2011 Powders for powder metallurgical purposes—Sampling GB/T 6526-1986 Self-fluxing alloy powders Determination of solidus-Liquidus temperature range GB/T 8638.1-1988 Nickel base alloy powder—Determination of boron content—Alkalimetric method GB/T 8638.2-1988 Nickel base alloy powder—Determination of aluminium content—Chrome azurol S spectrophotometric method GB/T 8638.3-1988 Nickel base alloy powder—Determination of silicon content—Gravimetric method after dehydration by perchloric acid GB/T 8638.4-1988 Nickel base alloy powder—Determination of chromium content—Persulfate oxidation titrimetric method GB/T 8638.5-1988 Nickel base alloy powder—Determination manganese content—Sodium (potassium periodate spectrophotometric method) GB/T 8638.6-1988 Nickel base alloy powder—Determination of iron content—Titanium trichloride-potassium dichromate titrimetric method GB/T 8638.7-1988 Nickel base alloy powder—Determination of cobalt content—Nitroso-R salt spectrophotometric method GB/T 8638.8-1988 Nickel base alloy powder—Determination of copper content—Neocuproine-chloroform extraction spectrophotometric method GB/T 8638.9-1988 Nickel base alloy powder—Determination of copper content—Thiosulfate-iodimetric method GB/T 8638.10-1988 Nickel base alloy powder—Determination of melybdenum content—Thiocyanate spectrophotometric method GB/T 8638.11-1988 Nickel base alloy powder—Determination of tungsten content—Cinchonine gravimetric method GB/T 8638.12-1988 Nickel base alloy powder—Determination of phosphorus content—N-butyl alcohol-chloroform extraction spectrophotometric method GB/T 8638.13-1988 Nickel base alloy powder—Determination of oxygen content—Pulse heating inert gas fusion coulometric titrimetric method GB/T 8640-1988 Thermal sprayed metallic coatings—Rockwell hardness test GB/T 1480-2025 Metallic powders—Determination of particle size by dry sieving