GB/T 9842-2018 Specification for urea reactor

GB/T 9842-2004 Specification for urea reactor

GB/T 5777-2008 Seamless steel pipe and tubing methods for ultrasonic testing GB 150-1998 Steel pressure vessels GB/T 150.1-2011 Pressure vessels—Part 1:General requirements GB/T 150.1-2024 Pressure vessels—Part 1:General requirements GB/T 150.2-2011 Pressure vessels—Part 2:Materials GB/T 150.2-2024 Pressure vessels—Part 2:Materials GB/T 150.3-2011 Pressure vessels—Part 3:Design GB/T 150.3-2024 Pressure vessels—Part 3:Design GB/T 150.4-2011 Pressure vessels—Part 4:Fabrication,inspection and testing,and acceptance GB/T 150.4-2024 Pressure vessels—Part 4:Fabrication,inspection and testing,and acceptance GB/T 983-1995 Stainless steel covered electrodes GB/T 983-2012 Covered electrodes for manual metal arc welding of stainless and heat-resisting steels GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 4226-1984 Cold finished stainless steel bars GB/T 4226-2009 Cold finished stainless steel bar GB 13296-1991 Seamless stainless steel tubes for boiler and heat exchanger GB 13296-2007 Seamless stainless steel tubes for boiler and heat exchanger GB/T 13296-2013 Seamless stainless steel tubes for boiler and heat exchanger GB/T 13296-2023 Seamless stainless steel tubes for boiler and heat exchanger GB/T 14976-2002 Stainless steel seamless tubes for fluid transport GB/T 14976-2012 Seamless stainless steel pipes for fluid transport GB/T 25150-2010 Quality test method of passive film on austenitic stainless steel of chemical cleaning for industrial equipment—Blue dot method GB/T 25151.1-2010 Fabrication and inspection method for high pressure urea equipment—Part 1:Ultrasonic examination on the automatic strip overlay welds of stainless steel GB/T 25151.2-2010 Fabrication and inspection method for high pressure urea equipment—Part 2:Selective corrosion examination and metallography examination for ultra low-carbon chromated nickel molybdenum austenitic stainless steel of urea grade GB/T 25151.3-2010 Fabrication and inspection method for high pressure urea equipment—Part 3:Intergranular corrosion tendency test for ultra low-carbon chromated nickel molybdenum austenitic stainless steel of urea grade GB/T 25151.4-2010 Fabrication and inspection method for high pressure urea equipment—Part 4:Intergranular corrosion tendency test specimen preparation for ultra low-carbon chromated nickel molybdenum austenitic stainless steel of urea grade GB/T 25151.6-2014 Fabrication and inspection method for high pressure urea equipment—Part 6:Helium leakage test method for urea high pressure equipment GB/T 25198-2010 Heads for pressure vessels GB/T 25198-2023 Heads for pressure vessels HG/T 3179-2023 Urea high-pressure equipment welding process qualification and welder skill evaluation HG/T 3180-2023 Urea high-pressure equipment lining plate and internal parts welding process qualification and welder skill evaluation NB/T 47013.1-2015 Non-destructive testing of pressure equipment - Part 1: General requirements NB/T 47013.2-2015 Non-destructive testing of pressure equipment - Part 2: Radiographic testing NB/T 47013.5-2015 Non-destructive testing of pressure equipment - Part 5: Penetrant testing NB/T 47016-2023 The mechanical properties of welded specimens for pressure equipment products are tested HG/T 3180-2002 Welding procedure qualification and welder performance qualification of cladding and internal for high pressure urea equipments HG/T 3179-2002 Surfacing procedure qualification and welder performance qualification for high pressure urea equipment JB/T 4711-2003 Coating and packing for pressure vessels transport GB/T 14976-2025 Seamless stainless steel pipes for fluid transport GB/Z 150-2025 Guide for magnetizing behaviour of permanent magnets