GB/T 24590-2009 Enhanced tubes for efficient heat exchanger

GB/T 24590-2021 Enhanced tubes for efficient heat exchanger

GB/T 228-2002 Metallic materials—Tensile testing at ambient temperature GB/T 241-1990 Metal tubes—Hydrostatic pressure testing GB/T 241-2007 Metal materials—Tube—Hydrostatic pressure test GB/T 241-2025 Metallic materials—Tube—Hydrostatic pressure test GB/T 2102-1988 Acceptance, packing, marking, and certification of pipe GB/T 2102-2006 Acceptance, packing, marking and quality certification of steel pipe GB/T 2102-2022 Acceptance,packaging,marking and quality certification for steel tubular products GB/T 2882-1981 Nickel and nickel-copper alloy tube GB/T 2882-2005 Nickel and nickel alloys tube GB/T 2882-2013 Nickel and nickel alloys tube GB/T 2882-2023 Nickel and nickel alloys tube GB 3087-1999 Seamless steel tubes for low and medium pressure GB/T 3087-2008 Seamless steel tubes for low and medium pressure boiler GB/T 3087-2022 Seamless steel tubes and pipes for low and medium pressure boiler GB/T 3620.1-1994 Designation and composition of titanium and titanium alloys GB/T 3620.1-2007 Designation and composition of titanium and titanium alloys GB/T 3620.1-2016 Designation and composition of titanium and titanium alloys GB/T 3625-1995 Titanium and titanium alloy tubes for condensers and heat exchangers GB/T 3625-2007 Titanium and titanium alloy tube for condensers and heat exchangers GB 5310-1995 Seamless steel tubes and pipes for high pressure boiler GB/T 5310-2008 Seamless steel tubes and pipes for high pressure boiler GB/T 5310-2017 Seamless steel tubes and pipes for high pressure boiler GB/T 5310-2023 Seamless steel tubes and pipes for high pressure boiler GB 6479-2000 Seamless steel tubes for high-pressure for chemical fertilizer equipments GB/T 6479-2013 Seamless steel tubes for high-pressure chemical fertilizer equipments GB/T 8163-1999 Seamless steel tubes for liquid service GB/T 8163-2008 Seamless steel tubes for liquid service GB/T 8163-2018 Seamless steel pipes for liquid service GB/T 8180-1987 Wrought titanium and titanium alloy products packing, marking, transporting and storing GB/T 8180-2007 Wrought titanium and titanium alloy products packing, marking, transporting and storing GB/T 8180-2023 Wrought titanium and titanium alloy products packing,marking,transporting and storing GB/T 8888-2003 Wrought heavy non-ferrous metal products-Packing,marking,transporting and storing GB/T 8888-2014 Wrough heavy non-ferrous metal products-packing,marking,transportation,storing and cetificate of quality GB/T 8890-1998 Seamless copper alloy tube for condenser and heat-exchanger GB/T 8890-2007 Seamless copper alloy tube for heat-exchanger GB/T 8890-2015 Seamless copper alloy tube for condenser and heat-exchanger GB 9948-1988 Seamless steel tubes for petroleum cracking GB 9948-2006 Seamless steel tubes for petroleum cracking GB/T 9948-2013 Seamless steel tubes for petroleum cracking GB/T 9948-2025 Seamless steel tubes and pipes for petrochemical and chemical facilities 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 14976-2025 Seamless stainless steel pipes for fluid transport GB/T 18851-2002 Non-destructive testing—Penetrant testing—Reference test blocks 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 18851.1-2024 Non-destructive testing—Penetrant testing—Part 1:General principles GB/T 18851.2-2005 Non-destructive testing—Penetrant testing—Part 2:Testing of penetrant materials GB/T 18851.2-2008 Non-destructive testing—Penetrant testing—Part 2:Testing of penetrant materials GB/T 18851.2-2024 Non-destructive testing—Penetrant testing—Part 2:Testing of penetrang materials GB/T 18851.3-2008 Non-destructive testing—Penetrant testing—Part 3:Reference test blocks GB/T 18851.4-2005 Non-destructive testing—Penetrant testing—Part 4:Equipment GB/T 18851.5-2005 Non-destructive testing—Penetrant testing—Part 5:Means of verification GB/T 18851.5-2014 Non-destructive testing—Penetrant testing—Part 5:Penetrant testing at temperatures higher than 50 ℃ GB/T 18851.6-2014 Non-destructive testing—Penetrant testing—Part 6:Penetrant testing at temperatures lower than 10 ℃ GB/T 20878-2007 Stainless and heat-resisting steels—Designation and chemical composition GB/T 20878-2024 Stainless steels—Designation and chemical composition