Piping Supply Journal

Piping standards directory

267 standards for pipe, flanges, fittings, valves, bolting, gaskets, materials, welding and testing — American, European, British, international, Japanese, Chinese and Indian. Filter by number or keyword, or open a standards body.

ASME standards

American Society of Mechanical Engineers (USA) — 27 standards.

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ASTM standards

ASTM International (USA) — 73 standards.

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API standards

American Petroleum Institute (USA) — 16 standards.

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MSS standards

Manufacturers Standardization Society (USA) — 10 standards.

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AWWA / NACE / AWS standards

Other American bodies — 7 standards.

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EN standards

European Standards (CEN) — 27 standards.

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DIN standards

Deutsches Institut für Normung (Germany, legacy) — 15 standards.

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BS standards

British Standards (UK) — 13 standards.

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ISO standards

International Organization for Standardization — 9 standards.

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JIS standards

Japanese Industrial Standards — 16 standards.

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GB standards

Chinese National Standards (GB, GB/T) and industry standards (HG/T, NB/T, SH/T) — 28 standards.

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IS standards

Indian Standards (BIS) and Indian regulations — 26 standards.

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All standards

StandardCoversCategoryOn this site
ASME B1.20.1NPT taper pipe threads, general purpose (inch)ThreadsOpen →
ASME B16.1Grey iron pipe flanges and flanged fittingsFlangesOpen →
ASME B16.5Pipe flanges and flanged fittings NPS ½ to 24, Class 150–2500FlangesOpen →
ASME B16.9Factory-made wrought buttwelding fittingsFittingsOpen →
ASME B16.10Face-to-face and end-to-end dimensions of valvesValves–
ASME B16.11Forged fittings, socket-welding and threadedFittingsOpen →
ASME B16.20Metallic gaskets for pipe flanges (ring joint, spiral wound, jacketed)GasketsOpen →
ASME B16.21Non-metallic flat gaskets for pipe flangesGaskets–
ASME B16.25Buttwelding end preparation (bevels)FittingsOpen →
ASME B16.34Valves — flanged, threaded and welding end; pressure–temperature ratingsValves–
ASME B16.36Orifice flangesFlangesOpen →
ASME B16.47Large-diameter steel flanges NPS 26 to 60, Series A and BFlangesOpen →
ASME B16.48Line blanks (spectacle blinds, spacers, paddle blanks)FlangesOpen →
ASME B18.2.1Inch-series bolts and screws (hex, heavy hex)BoltingOpen →
ASME B18.2.2Inch-series nuts (hex, heavy hex)BoltingOpen →
ASME B31.1Power piping codeDesign codes–
ASME B31.3Process piping codeDesign codesOpen →
ASME B31.4Pipeline transportation systems for liquids and slurriesDesign codes–
ASME B31.8Gas transmission and distribution piping systemsDesign codes–
ASME B31.9Building services pipingDesign codes–
ASME B36.10MWelded and seamless wrought steel pipe dimensionsPipeOpen →
ASME B36.19MStainless steel pipe dimensions (S schedules)PipeOpen →
ASME BPVC Section IRules for construction of power boilersDesign codes–
ASME BPVC Section IIMaterials — specifications (SA, SB) and allowable stressesMaterialsOpen →
ASME BPVC Section VNon-destructive examinationTesting & inspection–
ASME BPVC Section VIII Div. 1Rules for construction of pressure vesselsDesign codes–
ASME BPVC Section IXWelding, brazing and fusing qualifications (WPS, PQR, WPQ)Welding–
ASTM A36Carbon structural steel (plates, shapes, bars)Plate & structuralOpen →
ASTM A53Black and galvanised welded and seamless steel pipePipeOpen →
ASTM A105Carbon steel forgings for piping (flanges, fittings, valves)ForgingsOpen →
ASTM A106Seamless carbon steel pipe for high-temperature servicePipeOpen →
ASTM A179Seamless cold-drawn low-carbon steel heat exchanger and condenser tubesTubeOpen →
ASTM A182Forged alloy and stainless steel flanges, fittings, valves and parts (F304, F316, F11, F22, F51…)ForgingsOpen →
ASTM A192Seamless carbon steel boiler tubes for high pressureTubeOpen →
ASTM A193Alloy and stainless steel bolting for high temperature or pressure (B7, B8, B8M, B16)BoltingOpen →
ASTM A194Nuts for high-pressure or high-temperature bolting (2H, 4, 7, 8, 8M)BoltingOpen →
ASTM A213Seamless ferritic and austenitic alloy boiler, superheater and heat exchanger tubesTubeOpen →
ASTM A216Carbon steel castings for high temperature (WCA, WCB, WCC)Castings–
ASTM A217Alloy and martensitic stainless castings for high temperature (WC6, WC9, C5, C12)Castings–
ASTM A234Wrought carbon and alloy steel fittings for moderate and high temperature (WPB, WP11, WP22, WP91)FittingsOpen →
ASTM A240Chromium and chromium-nickel stainless plate, sheet and stripPlate & structuralOpen →
ASTM A249Welded austenitic steel boiler, superheater and heat exchanger tubesTubeOpen →
ASTM A262Detecting susceptibility to intergranular attack in austenitic stainless (Practices A–F)Testing & inspection–
ASTM A269Seamless and welded austenitic stainless tubing for general serviceTubeOpen →
ASTM A276Stainless steel bars and shapesBarsOpen →
ASTM A312Seamless, welded and heavily cold-worked austenitic stainless pipePipeOpen →
ASTM A320Alloy and stainless bolting for low-temperature service (L7, L43, B8)BoltingOpen →
ASTM A333Seamless and welded steel pipe for low-temperature service (Gr 6)PipeOpen →
ASTM A335Seamless ferritic alloy steel pipe for high temperature (P5, P9, P11, P22, P91)PipeOpen →
ASTM A350Carbon and low-alloy forgings with notch-toughness testing for piping (LF2, LF3)ForgingsOpen →
ASTM A351Austenitic and duplex castings for pressure parts (CF8, CF8M, CF3M)Castings–
ASTM A352Ferritic and martensitic castings for low temperature (LCB, LCC)Castings–
ASTM A358Electric-fusion-welded austenitic stainless pipe for high temperaturePipeOpen →
ASTM A370Test methods for mechanical testing of steel productsTesting & inspection–
ASTM A403Wrought austenitic stainless steel piping fittings (WP304, WP316L)FittingsOpen →
ASTM A420Wrought carbon and alloy steel fittings for low temperature (WPL6, WPL3)FittingsOpen →
ASTM A479Stainless bars and shapes for boilers and pressure vesselsBarsOpen →
ASTM A515Carbon steel pressure vessel plate for intermediate and higher temperaturePlate & structuralOpen →
ASTM A516Carbon steel pressure vessel plate for moderate and lower temperature (Gr 60, 65, 70)Plate & structuralOpen →
ASTM A530General requirements for carbon and alloy steel pipePipeOpen →
ASTM A671Electric-fusion-welded steel pipe for atmospheric and lower temperaturesPipeOpen →
ASTM A672Electric-fusion-welded steel pipe for high pressure at moderate temperaturePipeOpen →
ASTM A691Carbon and alloy EFW pipe for high pressure at high temperaturePipeOpen →
ASTM A694Forgings for high-pressure transmission flanges and fittings (F42–F70)ForgingsOpen →
ASTM A789Seamless and welded duplex stainless tubingTubeOpen →
ASTM A790Seamless and welded duplex stainless pipePipeOpen →
ASTM A815Wrought ferritic, duplex and martensitic stainless fittingsFittingsOpen →
ASTM A860Wrought high-strength low-alloy buttwelding fittings (WPHY 42–70)FittingsOpen →
ASTM A923Detecting detrimental intermetallic phases in duplex stainless steelsTesting & inspection–
ASTM A928Duplex stainless steel pipe, electric-fusion-welded with fillerPipeOpen →
ASTM A961Common requirements for steel flanges, forged fittings, valves and partsForgingsOpen →
ASTM A999General requirements for alloy and stainless steel pipePipeOpen →
ASTM B111Copper and copper-alloy seamless condenser tubes and ferrule stockTubeOpen →
ASTM B151Copper-nickel rod and barBarsOpen →
ASTM B163Seamless nickel and nickel-alloy condenser and heat exchanger tubesTubeOpen →
ASTM B165Nickel-copper alloy (Alloy 400) seamless pipe and tubePipeOpen →
ASTM B167Nickel-chromium-iron alloy (Alloy 600) seamless pipe and tubePipeOpen →
ASTM B338Seamless and welded titanium tubes for condensers and heat exchangersTubeOpen →
ASTM B348Titanium and titanium alloy bars and billetsBarsOpen →
ASTM B363Seamless and welded titanium welding fittingsFittingsOpen →
ASTM B366Factory-made wrought nickel and nickel-alloy fittingsFittingsOpen →
ASTM B381Titanium and titanium alloy forgingsForgingsOpen →
ASTM B423Alloy 825 seamless pipe and tubePipeOpen →
ASTM B444Alloy 625 pipe and tubePipeOpen →
ASTM B462Forged alloy flanges and fittings for corrosive high-temperature service (Alloy 20, etc.)ForgingsOpen →
ASTM B466Seamless copper-nickel pipe and tubePipeOpen →
ASTM B467Welded copper-nickel pipePipeOpen →
ASTM B564Nickel alloy forgings (Alloy 400, 600, 625, 825, C-276)ForgingsOpen →
ASTM B619Welded nickel and nickel-cobalt alloy pipePipeOpen →
ASTM B622Seamless nickel and nickel-cobalt alloy pipe and tube (C-276)PipeOpen →
ASTM B677Seamless super-austenitic pipe and tube (904L, etc.)PipeOpen →
ASTM B861Titanium and titanium alloy seamless pipePipeOpen →
ASTM B862Titanium and titanium alloy welded pipePipeOpen →
ASTM E8Tension testing of metallic materialsTesting & inspection–
ASTM E10Brinell hardness testTesting & inspection–
ASTM E18Rockwell hardness testTesting & inspection–
ASTM E23Notched bar (Charpy) impact testingTesting & inspection–
ASTM E140Hardness conversion tables for metalsTesting & inspection–
ASTM E165Liquid penetrant testingTesting & inspection–
ASTM E709Magnetic particle testingTesting & inspection–
API 5LLine pipe (PSL 1 and PSL 2, grades B to X80)PipeOpen →
API 5CTCasing and tubingPipeOpen →
API 6AWellhead and christmas tree equipmentValves–
API 6DPipeline and piping valvesValves–
API 594Check valves: flanged, lug, wafer and butt-weldingValves–
API 598Valve inspection and testingValves–
API 600Steel gate valves, flanged and butt-welding ends, bolted bonnetsValves–
API 602Compact steel gate, globe and check valves (small bore)Valves–
API 603Corrosion-resistant bolted-bonnet gate valvesValves–
API 607Fire test for quarter-turn valvesValves–
API 608Metal ball valvesValves–
API 609Butterfly valves: double-flanged, lug and waferValves–
API 650Welded steel tanks for oil storageTanks–
API 510Pressure vessel inspection code (in-service)Testing & inspection–
API 570Piping inspection code (in-service)Testing & inspection–
API 1104Welding of pipelines and related facilitiesWelding–
MSS SP-25Standard marking system for valves, fittings, flanges and unionsFittingsOpen →
MSS SP-43Wrought and fabricated buttwelding fittings for low pressure, corrosion-resistant serviceFittingsOpen →
MSS SP-44Steel pipeline flangesFlangesOpen →
MSS SP-55Visual quality standard for steel castingsCastings–
MSS SP-58Pipe hangers and supportsSupports–
MSS SP-75High-strength wrought buttwelding fittingsFittingsOpen →
MSS SP-79Socket-welding reducer insertsFittingsOpen →
MSS SP-83Class 3000 and 6000 pipe unionsFittingsOpen →
MSS SP-95Swaged nipples and bull plugsFittingsOpen →
MSS SP-97Integrally reinforced forged branch outlet fittings (weldolet, sockolet, threadolet)FittingsOpen →
AWWA C200Steel water pipe, 6 inch and largerPipeOpen →
AWWA C207Steel pipe flanges for waterworks serviceFlangesOpen →
AWWA C504Rubber-seated butterfly valvesValves–
NACE MR0175 / ISO 15156Materials for H₂S-containing environments in oil and gas productionMaterialsOpen →
NACE MR0103 / ISO 17945Materials resistant to sulphide stress cracking in refiningMaterialsOpen →
AWS D1.1Structural welding code — steelWelding–
AWS A5.x seriesFiller metal specifications (e.g. A5.1 carbon steel electrodes, A5.4 stainless electrodes)Welding–
EN 1092-1Circular steel flanges, PN designatedFlangesOpen →
EN 1092-2Cast iron flangesFlangesOpen →
EN 1092-3Copper alloy flangesFlangesOpen →
EN 1514 seriesGaskets for PN-designated flangesGaskets–
EN 10025Hot-rolled structural steels (S235, S275, S355)Plate & structuralOpen →
EN 10028-2Pressure-vessel plate, non-alloy and alloy for elevated temperature (P265GH)Plate & structuralOpen →
EN 10028-7Stainless steel plate for pressure purposesPlate & structuralOpen →
EN 10088 seriesStainless steels — list of grades and technical delivery conditionsMaterialsOpen →
EN 10204Types of inspection documents (2.1, 2.2, 3.1, 3.2)Testing & inspection–
EN 10216-1Seamless pressure tubes, non-alloy, room temperaturePipeOpen →
EN 10216-2Seamless pressure tubes, non-alloy and alloy, elevated temperaturePipeOpen →
EN 10216-3Seamless pressure tubes, alloy fine-grain steelPipeOpen →
EN 10216-4Seamless pressure tubes, low temperaturePipeOpen →
EN 10216-5Seamless stainless steel pressure tubesPipeOpen →
EN 10217-1 to -7Welded pressure tubes (non-alloy, elevated temp, low temp, SAW, stainless)PipeOpen →
EN 10220Seamless and welded steel tubes — dimensions and masses per unit lengthPipeOpen →
EN 10222 seriesSteel forgings for pressure purposes (Part 2 ferritic, Part 5 stainless)ForgingsOpen →
EN 10241Steel threaded pipe fittingsFittingsOpen →
EN 10242Threaded malleable cast iron pipe fittingsFittingsOpen →
EN 10253-1 to -4Buttwelding pipe fittings (carbon, alloy, austenitic and duplex)FittingsOpen →
EN 10255Non-alloy steel tubes for welding and threadingPipeOpen →
EN 10269Steels and nickel alloys for fasteners at elevated or low temperatureBoltingOpen →
EN 13445Unfired pressure vesselsDesign codes–
EN 13480Metallic industrial pipingDesign codes–
EN ISO 1127Stainless steel tubes — dimensions, tolerances and massesPipeOpen →
EN ISO 9606-1Qualification testing of welders — steelsWelding–
EN ISO 15614-1Welding procedure qualification test (WPQR) — steels and nickel alloysWelding–
DIN 1629Seamless circular tubes of non-alloy steels with special requirementsPipeOpen →
DIN 2391Seamless precision steel tubesPipeOpen →
DIN 2440 / 2441Medium and heavy threaded steel tubesPipeOpen →
DIN 2448Seamless steel tubes — dimensions and massesPipeOpen →
DIN 2458Welded steel tubes — dimensions and massesPipeOpen →
DIN 2501Flanges — connecting dimensionsFlangesOpen →
DIN 2527Blind flangesFlangesOpen →
DIN 2573 / 2576Plate (flat) welding flanges PN 6 / PN 10FlangesOpen →
DIN 2632–2635Weld neck flanges PN 10, 16, 25, 40FlangesOpen →
DIN 2605Buttwelding elbowsFittingsOpen →
DIN 2615Buttwelding teesFittingsOpen →
DIN 2616Buttwelding reducersFittingsOpen →
DIN 2617Buttwelding capsFittingsOpen →
DIN 17175Seamless tubes of heat-resistant steelsPipeOpen →
DIN 17456 / 17457Seamless and welded austenitic stainless tubesPipeOpen →
BS 10Flanges and bolting for pipes, valves and fittings (Tables D, E, F, H)FlangesOpen →
BS 1387Screwed and socketed steel tubes — light, medium, heavy (replaced by BS EN 10255)PipeOpen →
BS 1560Steel pipe flanges, Class designated (aligned with ASME B16.5)FlangesOpen →
BS 1640Steel buttwelding pipe fittingsFittingsOpen →
BS 3293Carbon steel pipe flanges over 24 inchFlangesOpen →
BS 3600Dimensions and masses of welded and seamless steel pipesPipeOpen →
BS 3601Carbon steel pressure pipes, room temperaturePipeOpen →
BS 3602Carbon steel pressure pipes, high temperaturePipeOpen →
BS 3603Carbon and alloy steel pressure pipes, low temperaturePipeOpen →
BS 3604Ferritic alloy steel pressure pipes, high temperaturePipeOpen →
BS 3605Austenitic stainless steel pressure pipesPipeOpen →
BS 3799Steel pipe fittings, screwed and socket-weldingFittingsOpen →
BS 4504Circular flanges, PN designated (replaced by BS EN 1092-1)FlangesOpen →
ISO 7-1Pipe threads where pressure-tight joints are made on the threads (BSPT / R, Rc)ThreadsOpen →
ISO 228-1Pipe threads where pressure-tight joints are not made on the threads (BSPP / G)ThreadsOpen →
ISO 3183Line pipe for pipeline transportation systemsPipeOpen →
ISO 4200Plain-end steel tubes — dimensions and massesPipeOpen →
ISO 6708Definition of DN (nominal size)PipeOpen →
ISO 7005-1Steel flanges for industrial and general service pipingFlangesOpen →
ISO 9001Quality management systems — requirementsQuality–
ISO 15156Materials for H₂S environments in oil and gas production (= NACE MR0175)MaterialsOpen →
ISO 15590Induction bends, fittings and flanges for pipeline transportationFittingsOpen →
JIS B2220Steel pipe flanges (5K, 10K, 16K, 20K, 30K)FlangesOpen →
JIS B2311Steel buttwelding fittings for ordinary useFittingsOpen →
JIS B2312Steel buttwelding pipe fittingsFittingsOpen →
JIS B2313Steel plate buttwelding pipe fittingsFittingsOpen →
JIS B2316Steel socket-welding pipe fittingsFittingsOpen →
JIS G3101Rolled steels for general structure (SS400)Plate & structuralOpen →
JIS G3452Carbon steel pipes for ordinary piping (SGP)PipeOpen →
JIS G3454Carbon steel pipes for pressure service (STPG)PipeOpen →
JIS G3455Carbon steel pipes for high-pressure service (STS)PipeOpen →
JIS G3456Carbon steel pipes for high-temperature service (STPT)PipeOpen →
JIS G3458Alloy steel pipes (STPA)PipeOpen →
JIS G3459Stainless steel pipes (SUS-TP)PipeOpen →
JIS G3460Steel pipes for low-temperature service (STPL)PipeOpen →
JIS G3463Stainless steel boiler and heat exchanger tubesTubeOpen →
JIS G4303Stainless steel barsBarsOpen →
JIS G4304 / G4305Hot- and cold-rolled stainless plate, sheet and stripPlate & structuralOpen →
GB/T 699Quality carbon structural steels (grades 10, 20, 45)MaterialsOpen →
GB/T 700Carbon structural steels (Q235)MaterialsOpen →
GB/T 713Steel plates for boilers and pressure vessels (Q245R, Q345R)Plate & structuralOpen →
GB/T 1591High-strength low-alloy structural steels (Q355)MaterialsOpen →
GB/T 3087Seamless steel tubes for low and medium pressure boilersTubeOpen →
GB/T 3091Welded steel pipes for low-pressure liquid deliveryPipeOpen →
GB 5310Seamless steel tubes and pipes for high-pressure boilersTubeOpen →
GB 6479Seamless steel tubes for high-pressure chemical fertiliser equipmentPipeOpen →
GB/T 8162Seamless steel tubes for structural purposesPipeOpen →
GB/T 8163Seamless steel tubes for liquid servicePipeOpen →
GB/T 9711Line pipe (equivalent to ISO 3183 / API 5L)PipeOpen →
GB/T 9112–9124Steel pipe flanges (types, dimensions and technical requirements)FlangesOpen →
GB/T 12459Steel buttwelding seamless pipe fittingsFittingsOpen →
GB/T 12771Welded stainless steel pipes for liquid deliveryPipeOpen →
GB/T 13401Steel plate buttwelding pipe fittingsFittingsOpen →
GB/T 14383Forged socket-welding and threaded fittingsFittingsOpen →
GB/T 14976Seamless stainless steel pipes for fluid transportPipeOpen →
GB/T 17395Seamless steel tubes — dimensions, shapes, masses and tolerancesPipeOpen →
GB/T 20878Stainless and heat-resisting steels — designations and chemical compositionMaterialsOpen →
GB/T 21833Seamless austenitic-ferritic (duplex) stainless steel tubes and pipesPipeOpen →
GB/T 24511Stainless steel plate and strip for pressure equipmentPlate & structuralOpen →
GB 50235Code for construction of industrial metallic pipingDesign codes–
GB 50316Design code for industrial metallic pipingDesign codes–
HG/T 20592–20614Chemical-industry steel pipe flanges, gaskets and bolting — European (PN) systemFlangesOpen →
HG/T 20615–20635Chemical-industry steel pipe flanges, gaskets and bolting — American (Class) systemFlangesOpen →
NB/T 47008Carbon and low-alloy steel forgings for pressure equipmentForgingsOpen →
NB/T 47010Stainless and heat-resisting steel forgings for pressure equipmentForgingsOpen →
SH/T 3406Petrochemical steel pipe flangesFlangesOpen →
IS 210Grey iron castings (FG 150, FG 200, FG 260)Castings–
IS 554Pipe threads where pressure-tight joints are made on the threads (BSPT equivalent)ThreadsOpen →
IS 808Dimensions of hot-rolled steel beams, columns, channels and angles (ISMB, ISMC, ISA)Plate & structuralOpen →
IS 1030Carbon steel castings for general engineeringCastings–
IS 1161Steel tubes for structural purposesPipeOpen →
IS 1239 Part 1Steel tubes — light, medium and heavy (MS / GI pipes)PipeOpen →
IS 1239 Part 2Steel tubulars — screwed fittings (sockets, elbows, tees)FittingsOpen →
IS 1367Technical supply conditions for threaded steel fastenersBoltingOpen →
IS 1536Centrifugally cast (spun) iron pressure pipesPipeOpen →
IS 1978Line pipePipeOpen →
IS 1979High-test line pipePipeOpen →
IS 2002Steel plates for pressure vessels at intermediate and high temperature, including boilersPlate & structuralOpen →
IS 2041Steel plates for pressure vessels at moderate and low temperaturePlate & structuralOpen →
IS 2062Hot-rolled structural steel (E250, E350)Plate & structuralOpen →
IS 2643Pipe threads where pressure-tight joints are not made on the threads (BSPP equivalent)ThreadsOpen →
IS 2825Code for unfired pressure vesselsDesign codes–
IS 3589Steel pipes for water and sewage (ERW / SAW, larger diameters)PipeOpen →
IS 3601Steel tubes for mechanical and general engineeringPipeOpen →
IS 4736Hot-dip zinc coatings on mild steel tubes (galvanising)PipeOpen →
IS 4923Hollow steel sections for structural use (square and rectangular)Plate & structuralOpen →
IS 4984Polyethylene (HDPE) pipes for water supplyPipeOpen →
IS 4985Unplasticised PVC pipes for potable waterPipeOpen →
IS 6392Steel pipe flangesFlangesOpen →
IS 6911Stainless steel plate, sheet and stripPlate & structuralOpen →
IS 8329Centrifugally cast ductile iron pressure pipesPipeOpen →
IBR 1950Indian Boiler Regulations — materials, manufacture and inspection of boilers and steam pipesDesign codes–

Need cross-references? See equivalent standards and equivalent material grades.

Frequently asked questions

What is the difference between ASME and ASTM standards?

ASTM writes material specifications (e.g. A106, A182); ASME writes design codes and dimensional standards (e.g. B31.3, B16.5) and adopts ASTM specs as SA/SB specifications.

What is GB/T?

GB/T is a recommended Chinese national standard; GB without /T is mandatory. HG/T and NB/T are Chinese chemical- and energy-industry standards.

What is the Indian standard for steel pipe flanges?

IS 6392.

Last updated 2026-11-02