GB/T 28713-2023 Enhanced heat transfer tubes used in heat exchanger

GB/T 28713.2-2012 Enhanced heat transfer elements used in tube-shell heat exchangers—Part 2:Stainless steel corrugated tubes GB/T 28713.3-2012 Enhanced heat transfer elements used in tube-shell heat exchangers—Part 3:Wavy tubes GB/T 28713.1-2012 Enhanced heat transfer elements used in tube-shell heat exchangers—Part 1:Threaded tubes

GB 151-1999 Tubular heat exchangers GB/T 151-2014 Heat exchangers GB/T 241-1990 Metal tubes—Hydrostatic pressure testing GB/T 241-2007 Metal materials—Tube—Hydrostatic pressure test GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 4436-1995 Wrought aluminium and aluminium alloy tubes—Dimensions and deviations GB/T 4436-2012 Wrought aluminum and aluminum alloy tubes—Dimensions and deviations GB/T 6893-2000 Aluminium and aluminium alloy cold drawn (rolled) seamless tubes GB/T 6893-2010 Aluminium and aluminium alloys cold drawn(rolled) seamless tubes GB/T 6893-2022 Aluminium and aluminium alloys cold drawn (rolled) tubes NB/T 47013.5-2015 Non-destructive testing of pressure equipment - Part 5: Penetrant testing NB/T 47014-2023 Pressure equipment welding process qualification NB/T 47019.1-2021 NB/T 47019.1-2021 Ordering Technical Conditions for Tubes Used in Boilers and Heat Exchangers Part 1: General Requirements NB/T 47019.2-2021 Specifications for the technical conditions for ordering of boiler and heat exchanger pipes - Part 2: Non-alloy and alloy steel pipes with specified room temperature properties NB/T 47019.3-2021 Specifications for the technical conditions for ordering of boiler and heat exchanger pipes - Part 3: Non-alloy and alloy steels with specified high-temperature properties NB/T 47019.4-2021 Order Specification for Low Alloy Steel Tubes for Boilers and Heat Exchangers - Part 4: Low Temperature Application for Low Alloy Steel Tubes NB/T 47019.5-2021 Specification for orders of boiler and heat exchanger tubes - Part 5: Stainless steel NB/T 47019.6-2021 Nitriled piping technical requirements for boilers and heat exchangers Part 6: Austenitic-ferromagnetic duplex stainless steel NB/T 47019.7-2021 Technical Conditions for Ordering of Tubes for Boilers and Heat Exchangers - Part 7: Copper and Copper Alloys NB/T 47019.8-2021 Technical Conditions for Orders of Tubes for Boilers and Heat Exchangers - Part 8: Titanium and Titanium Alloys NB/T 47019.9-2021 Specification for ordering of pipes for boilers and heat exchangers - Part 9: Nickel and nickel alloys NB/T 47019.4-2011 Purchase technical specification for boiler & heater exchanger tubes/pipes Part 4:Low alloy steel for low-temperature service NB/T 47019.6-2011 Purchase technical specification for boiler & heater exchanger tubes/pipes Part 6:Ferrite/austenite duplex steel NB/T 47019.1-2011 Purchase technical specification for boiler & heater exchanger tubes/pipes Part 1:General Requirements NB/T 47019.2-2011 Purchase technical specification for boiler & heater exchanger tubes/pipes Part 2:Non-alloy and alloy steel with room temperature properties NB/T 47019.3-2011 Purchase technical specification for boiler & heater exchanger tubes/pipes Part 3:Non-alloy and alloy steel with specified elevated temperature properties NB/T 47019.5-2011 Purchase technical specification for boiler & heater exchanger tubes/pipes Part 5:Stainless steel NB/T 47019.7-2011 Purchase technical specification for boiler & heater exchanger tubes/pipes Part 7:Copper and copper alloy/tube NB/T 47019.8-2011 Purchase technical specification for boiler & heater exchanger tubes/pipes Part 8:Titanium and titanium alloy GB/T 241-2025 Metallic materials—Tube—Hydrostatic pressure test GB/T 151-2026 Heat exchangers GB/Z 151-2026 Fire prevention measures on converters for high-voltage direct current(HVDC)systems,static var compensators(SVC)and flexible AC transmission systems(FACTS)and their valve halls