GB/T 20801.2-2020
Pressure piping code—Industrial piping—Part 2:Materials (English Version)

Standard No.

GB/T 20801.2-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 20801.2-2020

Replace

GB/T 20801.2-2006

Scope

This part of GB/T20801 specifies the basic requirements for materials used in pressure piping components, including the selection of materials, usage restrictions based on material properties, marking and quality certification. This section applies to the selection and use of materials for pressure piping components within the scope of GB/T20801.1.

GB/T 20801.2-2020 Referenced Document

• ASTM A333 Standard Specifications For Seamless And Welded Steel Pipe For Low-Temperature Service
• ASTM A671 Standard Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures
• ASTM A691 Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• ASTM B366 Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings*， 2024-04-22 Update
• ASTM B444 Standard Specification for Nickel-Chromium-Molybdenum-Niobium Alloys and Nickel-Chromium-Molybdenum-Silicon Alloy Pipe and Tube*， 2023-07-01 Update
• ASTM B619 Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Pipe*， 2024-04-22 Update
• ASTM B622 Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube*， 2023-12-01 Update
• GB/T 1220 Stainless steel bars
• GB/T 12228 General purpose industrial valves.Specification of carbon steel forgings
• GB/T 12229 General Purpose industrial valves.Specification of carbon steel castings
• GB/T 12230 Specifications for stainless steel castings for general valves*， 2023-05-23 Update
• GB/T 12771 Welded stainless steel pipes for fluid transport
• GB/T 12778 Determination of Charpy impact fracture surface for metallic materials
• GB/T 13295 Amendment No. 1 for ductile iron pipes, fittings and accessories for water and gas
• GB/T 13401 Steel buttwelding pipe fittings—Technical specification
• GB/T 1348 Spheroidal graphite iron castings
• GB/T 16253 Steel castings for pressure purposes
• GB/T 18984 Seamless steel tubes for low-temperature-service piping
• GB/T 20801.1-2020 Pressure piping code—Industrial piping—Part 1:General
• GB/T 20801.3-2020 Pressure pipng code—Industrial piping—Part 3:Design and calculation
• GB/T 20801.4-2020 Pressure piping code—Industrial piping—Part 4:Fabrication and assembly
• GB/T 20801.5-2020 Pressure piping code—Industrial piping—Part 5:Inspection and testing
• GB/T 20801.6-2020 Pressure piping code—Industrial piping—Part 6:Safeguarding
• GB/T 21832 Austenitic-Ferritic(duplex)grade stainless steel welded tubes and pipes
• GB/T 21833 Austenitic-Ferritic(duplex)grade stainless steel seamless tubes and pipes
• GB/T 229 Metallic materials—Charpy pendulum impact test method
• GB/T 25137 Titanium and titanium alloy forgings
• GB/T 26027 Aluminium and aluminium alloys drawn seamless tubes for large circumscribed circle diameter of cross section
• GB/T 26030 Nickel and nickel alloys forgings
• GB/T 26057 Titanium and titanium alloy welded tube
• GB/T 26058 Extruded tube of titanium and titanium alloys
• GB/T 27684 Seamless and welded fittings for titanium and titanium alloy
• GB/T 2882 Nickel and nickel alloy tubes*， 2023-11-27 Update
• GB/T 29168.1 Petroleum and natural gas industries—Induction bends, fittings and flanges for pipeline transportation systems—Part 1: Induction bends*， 2021-08-20 Update
• GB/T 29168.2 Petroleum and natural gas industries.Induction bends, fittings and flanges for pipeline transportation systems.Part 2:Fittings
• GB/T 29168.3 Petroleum and natural gas industries.Induction bends, fittings and flanges for pipeline transportationsystems.Part 3:Flanges
• GB/T 30059 Seamless corrosion-resisting alloy tubes for heat-exchanger
• GB/T 3077 Alloy structure steels
• GB/T 3087 Seamless steel tubes and pipes for low and medium pressure boiler*， 2022-04-15 Update
• GB/T 3091 Welded steel pipes for low pressure liquid delivery
• GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs
• GB/T 3098.6 Mechanical properties of fasteners—Stainless steel bolts，screws and studs*， 2023-05-23 Update
• GB/T 31032 Steel pipeline welding and acceptance*， 2023-12-28 Update
• GB/T 32964 Welded stainless steel pipes for liquefied natural gas
• GB/T 3624 Titanium and titanium alloy seamless pipe*， 2023-08-06 Update
• GB/T 4334 Corrosion of metals and alloys－Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels
• GB/T 4437.1 Aluminum and aluminum alloy hot extruded tubes Part 1: Seamless round tubes*， 2023-11-27 Update
• GB/T 5310 Seamless steel pipe for high pressure boiler*， 2023-09-07 Update
• GB/T 6479 Seamless steel tubes for high-pressure chemical fertilizer equipments
• GB/T 6614 Titanium and titanium alloy castings
• GB/T 6893 Aluminium and aluminium alloys cold drawn (rolled) tubes*， 2022-03-09 Update
• GB/T 8163 Seamless steel pipes for liquid service
• GB/T 9439 Gray cast iron parts*， 2023-09-07 Update
• GB/T 9440 Malleable iron castings
• GB/T 9711 Steel pipes for oil and gas industry pipeline transportation systems*， 2023-11-27 Update
• GB/T 9948 Seamless steel tubes for petroleum cracking
• HG/T 20537.3 Technical requirements for austenitic stainless steel welded steel pipes for chemical plants
• HG/T 20537.4 Technical requirements for austenitic stainless steel large-diameter welded steel pipes for chemical plants
• HG/T 20634 Bolting for use with steel pipe flanges(Class designated)
• JB/T 5263 Specification for steel casting for power station valves
• JB/T 7248 Technical specification for low temperature service steel casting for valves
• NB/T 47008 Carbon steel and alloy steel forgings for pressure equipment
• NB/T 47009 Alloy steel forgings for low temperature pressure equipment
• NB/T 47010 Stainless steel and heat-resistant steel forgings for pressure equipment
• NB/T 47013.2-2015 Nondestructive testing of pressure equipments.Part 2: Radiographic testing
• NB/T 47013.3-2015 Nondestructive testing of pressure equipments.Part 3: Ultrasonic testing
• NB/T 47014 Welding procedure qualification for pressure equipment
• NB/T 47028 Nickel and nickel alloy forging for pressure vessels
• NB/T 47029 Aluminium and aluminium alloy forgings for pressure vessels
• SY/T 5037 Submerged arc welded steel pipes for general fluid transportation pipelines*， 2023-10-11 Update
• YB/T 4173 Forged boring thick wall seamless steel pipe for high temperature*， 2021-12-02 Update

GB/T 20801.2-2020 history

• 2020 GB/T 20801.2-2020 Pressure piping code—Industrial piping—Part 2:Materials
• 2006 GB/T 20801.2-2006 Pressure piping code Industrial piping Part 2: Materials

GB/T 20801.2-2020 -All Parts