GB/T 37400.3-2019 Heavy mechanical general technical specification—Part 3:Welding parts

GB/T 37400.1-2019 Heavy mechanical general technical specification—Part 1:Products inspection and test GB/T 37400.2-2019 Heavy mechanical general technical specification—Part 2:Flame cutting parts GB/T 37400.4-2019 Heavy mechanical general technical specification—Part 4:Iron castings GB/T 37400.5-2019 Heavy mechanical general technical specification—Part 5:Nonferrous metal casting GB/T 37400.6-2019 Heavy mechanical general technical specification—Part 6:Steel castings GB/T 37400.7-2019 Heavy mechanical general technical specification—Part 7:Repair welding for steel castings GB/T 37400.8-2019 Heavy mechanical general technical specification—Part 8:Forgings GB/T 37400.9-2019 Heavy mechanical general technical specification—Part 9:Machining parts GB/T 37400.10-2019 Heavy mechanical general technical specification—Part 10:Assembling GB/T 37400.11-2019 Heavy mechanical general technical specification—Part 11:Piping GB/T 37400.12-2019 Heavy mechanical general technical specification—Part 12:Painting GB/T 37400.13-2019 Heavy mechanical general technical specification—Part 13:Packaging GB/T 37400.14-2019 Heavy mechanical general technical specification—Part 14:Nondestructive test of steel castings GB/T 37400.15-2019 Heavy mechanical general technical specification—Part 15:Nondestructive test of steel forgings GB/T 37400.16-2019 Heavy mechanical general technical specification—Part 16:Hydraulic system

NB/T 47003.1 GB/T 324-1988 Welds-symbolic representation on drawings GB/T 324-2008 Weld symbolic representation on drawings GB/T 985.1-2008 Recommended joint preparation for gas welding,manual metal arc welding,gas-shield arc welding and beam welding GB/T 985.2-2008 Recommended joint preparation for submerged arc welding GB/T 3323-1987 Methods for radiographic inspection and classification of radiographs for fusion welded butt joints in steel GB/T 3323-2005 Radiographic examination of fusion welded joints in metallic materials GB/T 3323.1-2019 Non-destructive testing of welds—Radiographic testing—Part 1:X-and gamma-ray techniques with film GB/T 3323.2-2019 Non-destructive testing of welds—Radiographic testing—Part 2:X-and gamma-ray techniques with digital detectors GB/T 6417.1-2005 Classification and explanation of imperfections in fusion welded joints GB/T 11345-1989 Method for manual ultrasonic testing and classification of testing results for ferritic steel welds GB/T 11345-2013 Non-destructive testing of welds—Ultrasonic testing—Techniques,testing levels,and assessment GB/T 11345-2023 Non-destructive testing of welds—Ultrasonic testing—Techniques, testing levels and assessment GB/T 18591-2001 Welding—Guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature GB/T 18851.1-2005 Non-destructive testing—Penetrant testing—Part 1:General principles GB/T 18851.1-2012 Non-destructive testing—Penetrant testing—Part 1:General principles GB/T 19418-2003 Arc-welded joints in steel—Guidance on quality levels for imperfections GB/T 25712-2010 Vibratory stress relief technology—Parameter selection and effect evaluation methods GB/T 26951-2011 Non-destructive testing of welds—Magnetic particle testing GB/T 26952-2011 Non-destructive testing of welds—Magnetic particle testing of welds—Acceptance levels GB/T 26953-2011 Non-destructive testing of welds—Penetrant testing of welds—Acceptance levels GB/T 29712-2013 Non-destructive testing of welds—Ultrasonic testing—Acceptance levels GB/T 29712-2023 Non-destructive testing of welds—Ultrasonic testing—Acceptance levels GB/T 37400.2-2019 Heavy mechanical general technical specification—Part 2:Flame cutting parts GB/T 37400.11-2019 Heavy mechanical general technical specification—Part 11:Piping GB/T 37400.12-2019 Heavy mechanical general technical specification—Part 12:Painting JB/T 3223-2017 Welding Material Quality Management Regulations JB/T 6046-1992 The post-welding heat treatment methods for welded steel structures made of carbon steel and low alloy steel JB/T 3223-1996 Welding Material Quality Management Regulations GB/T 18851.1-2024 Non-destructive testing—Penetrant testing—Part 1:General principles GB/T 26952-2025 Non-destructive testing of welds—Magnetic particle testing—Acceptance levels GB/T 26951-2025 Non-destructive testing of welds—Magnetic particle testing GB/T 26953-2025 Non-destructive testing of welds—Penetrant testing—Acceptance levels