Comparing American and British Piping Standards

Comparing US American (ASTM) and British (BSi) piping standards - specifications, grades and material descriptions

The table below compares some British (BSi) and American (ASTM) piping standards:

ASTM InternationalBSi - British Standards instituteMaterial
A120 1387 (BS EN 10255:2004) Carbon Steel
A53 Gr. A 3601/320 Carbon Steel
A53 Gr. B 3601/410 Carbon Steel
A106 Gr. A 3602/360 Carbon Steel
A106 Gr. B 3602/410 Carbon Steel
A333 Gr. 3 3603/503 Killed Carbon Steel
A333 Gr. 6 3603/410  
A333 Gr. 8 3603/590 3.5% nickel
API 5L Gr. A 3601/23 Carbon Steel
API 5L Gr. B 3601/27 Carbon Steel
A335 Gr. P5 3604/625 5% Cr 1/2% Mo
A335 Br. P9 3604/629 9% Cr 1% Mo
A335 Gr. P11 3604/621 1 1/4% Cr 1/2% Mo
A335 Gr. P12 3604/620 1% Cr 1/2% Mo
A335 Gr. P22 3604/622 2 1/4% Cr 1% No
A312 Gr. Tp 304 3605/304 S18 (EN58E) Austenitic chromium nickel
A312 Gr. Tp 304H 3605/304 S59 Austenitic chromium nickel
A312 Gr. Tp 304L 3605/304 S14 Austenitic chromium nickel (extra low carbon)
A312 Gr. Tp 316 3605/316 S18 (EN58J) Austenitic chromium nickel molybdenum bearing
A312 Gr.Tp 316L 3605/316 S14 Austenitic chromium nickel molybdenum bearing (extra low carbon)
A312 Gr. Tp 321 3605/321 S18 (EN58B) Austenitic chromium nickel titanium stabilized
A312 Gr. Tp 347 3605/347 S18 (EN58G) Austenitic chromium nickel nobelium stabilized
  • A 333 - Seamless and Welded Pipe for Low-Temperature Service
  • A 53 - Welded and Seamless Steel Pipe
  • A 106 - Seamless C-Steel Pipe for High Temperature Service
  • A 335 - Seamless Ferritic Alloy Steel Pipe for High Temperature Service
  • A 312 - Seamless and Welded Austenitic Stainless Steel Pipe
  • API 5L - Specification for Line Pipe

 

  • BS 1387 - Steel Tubes and Tubulars Suitable for Screwing to Bs 21 Pipe Threads - Replaced by BS EN 10255:2004  Non-alloy steel tubes suitable for welding or threading. Technical delivery conditions
  • BS 3601 - Steel Pipes and Tubes for Pressure Purposes Carbon Steel with Specified Room Temperature Properties -  Replaced by BS EN 10216-1:2002 Seamless tubes for pressure purposes - Non-alloy steel tubes with specified room temperature properties, BS EN 10217-1:2002 Welded steel tubes for pressure purposes - Non-alloy steel tubes with specified room temperature properties
  • BS 3602 PART1 - Steel Pipes and Tubes for Pressure Purposes : Carbon and Carbon Manganese Steel with Specified Elevated Temperature Properties - Replaced by BS EN 10216-2:2002 Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy and alloy steel tubes with specified elevated temperature properties
  • BS 3602 PART2 - Steel Pipes and Tubes for Pressure Purposes : Carbon and Carbon Manganese Steel with Specified Elevated Temperature Properties - Replaced by BS EN 10216-2:2002 Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy and alloy steel tubes with specified elevated temperature properties
  • BS 3603 - Steel Pipes and Tubes for Pressure Purposes Carbon and Alloy Steel with Specified Low Temperature Properties - Replaced by EN10216-4:2002 Seamless steel tubes for pressure purposes. Technical delivery conditions
  • BS 3604 -  Steel pipes and tubes for pressure purposes: ferritic alloy steel with specified elevated temperature properties. Specification for longitudinally arc welded tubes
  • BS 3605 PART1 - Seamless and Welded Austentic Stainless Steel Pipe and Tubes for Pressure Purposes -  Replaced by BS EN 10216-5:2004  Seamless steel tubes for pressure purposes. Technical delivery conditions. Stainless steel tubes

Related Topics

  • Valve Standards - International standards for valves in piping systems
  • Codes and Standards - Piping codes and standards - ASME, ANSI, ASTM, AGA, API, AWWA, BS, ISO, DIN and more..
  • Piping Systems - Dimensions of pipes and tubes, materials and capacities, pressure drop calculations and charts, insulation and heat loss diagrams

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