EJ/T 1027.16-1996 Welding code for mechanical components of PWR nuclear islands Hardfacing procedure qualification on valve

EJ/T 1027.1-1996 Welding code for mechanical components of PWR nuclear islands Accepance of welding material EJ/T 1027.2-1996 Welding code for mechanical components of PWR nuclear islands Qualification of welding materials EJ/T 1027.3-1996 Welding code for mechanical components of PWR nuclear islands Storage and use management of the welding materials EJ/T 1027.4-1996 Welding code for mechanical components of PWR nuclear islands Welding of carbon and low-alloy steel EJ/T 1027.6-1996 Welding code for mechanical components of PWR nuclear islands Welding for helerogeneous steel EJ/T 1027.7-1996 Welding code for mechanical components of PWR nuclear islands Anticorrosion overlaging with austenitic stainless steel EJ/T 1027.8-1996 Welding code for mechanical components of PWR nuclear islands Anticorrosion overlaying with nickel-base alloy EJ/T 1027.9-1996 Welding code for mechanical components of PWR nuclear islands Hardfacing on Valve EJ/T 1027.10-1996 Welding code for mechanical components of PWR nuclear islands Repair of weld defects by welding EJ/T 1027.12-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure qualification of austenilic stainless steel EJ/T 1027.13-1996 Welding code for mechanical components of PWR nuclear islends Welding procedure qualification of heterogeneous steel EJ/T 1027.14-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure quelification of anticorrosion overlaying with austenitie stainless steel EJ/T 1027.15-1996 Welding code for mechanical components of PWR nuclear islands Welding procedure qualification of anticorrosion overlaying with nickel-base alloy EJ/T 1027.17-1996 Welding code for mechanical components of PWR nuclear islands Procedure qualification of repair welding for weld defects EJ/T 1027.18-1996 Welding code for mechanical components of PWR nuclear islands Specification for equiapment production workshops EJ/T 1027.19-1996 Welding code for mechanical components of PWR nuclear islands Qualification of welders and operators

NB/T 20002.7-2013 Pressurized water reactor nuclear power plant nuclear island mechanical equipment welding specifications Part 7: Wear-resistant surface welds

EJ/T 1027.17-1996 Welding code for mechanical components of PWR nuclear islands Procedure qualification of repair welding for weld defects EJ/T 1027.9-1996 Welding code for mechanical components of PWR nuclear islands Hardfacing on Valve GB/T 226-1991 Etch test for macrostructure and defect of steels GB/T 226-2015 Test method for macrostructure and defect of steel by etching 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 4334.5-2000 Method of copper sulfate-sulfuric acid test for stainless steels GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.2-1999 Metallic vickers hardness test—Part 2:Verification of hardness testers GB/T 4340.2-2012 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines GB/T 4340.3-1999 Metallic vickers hardness test—Part 3:Calibration of hardness reference blocks GB/T 4340.3-2012 Metallic materials—Vickers hardness test—Part 3:Calibration of reference blocks GB/T 4340.4-2009 Metallic materials—Vickers hardness test—Part 4:Tables of hardness values GB/T 4340.4-2022 Metallic materials—Vickers hardness test—Part 4:Tables of hardness values GB/T 984-2001 Hardfacing electrodes for shielded metal arc welding JB/T 3169 JB/TQ EJ/T 1027.1-1996 Welding code for mechanical components of PWR nuclear islands Accepance of welding material GB/T 4340.2-2025 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines GB/T 4340.3-2025 Metallic materials—Vickers hardness test—Part 3:Calibration of reference blocks