ASTM A234/ASME SA234M -92a
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service

• Abstract …
• Scope
• Referenced Documents
• Index Terms
• Certificate & Inspection

Abstract …

This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. The material for fittings shall consist of killed steel, forgings, bars, plates, seamless or fusion-welded tubular products with filler metal added. Forging or shaping operations may be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. The forming procedure shall be so applied that it will not produce injurious imperfections in the fittings. Fittings, after forming at an elevated temperature, shall be cooled to a temperature below the critical range under suitable conditions to prevent injurious defects caused by too rapid cooling, but in no case more rapidly than the cooling rate in still air. The fittings shall be subjected to tension test, hardness test, and hydrostatic test.

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1. Scope

1.1 This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, and MSS-SP-95. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. Fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A 960/A 960M.

1.2 Optional supplementary requirements are provided for fittings where a greater degree of examination is desired. When desired, one or more of these supplementary requirements may be specified in the order.

1.3 This specification does not cover cast welding fittings or fittings machined from castings. Cast steel welding fittings are governed by Specifications A 216/A 216M and A 217/A 217M.

1.4 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.

1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

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2. Referenced Documents

ASTM Standards

• A216/A216M Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service
• A217/A217M Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for

High-Temperature Service

• A960/A960M Specification for Common Requirements for Wrought Steel Piping Fittings

ASME Standards

• B16.11 Forged Steel Fittings, Socket Welding and Threaded
• ASME Boiler and Pressure Vessel Code
• SectionIX Welding Qualifications

MSS Standards

• MSS-SP-95 Swage(d) Nipples and Bull Plugs

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Index Terms

pipe fittings—steel; piping applications; pressure containing parts; pressure vessel service; temperature service applications—elevated; ICS Number Code 23.040.40 (Metal fittings)

Seamless Fittings – 1/2” to 24” Welded Fittings – 1/2” to 60”
Elbow LR & SR Bend, Crosses, Stub-End, Tee, Reducer, Flange, End Cap
Long Radius Bends, Long Radius Piggable Bends, Induction Pipe Bending Bends
Long Radius Carbon Steel Bends, Long Radius High Yield Carbon Steel Bends
Long Radius Bends R-2D, R-3D, R-5D, R-6D, R-8D upto 22D
Long Radius Piggable Bends R-2D, R-3D, R-5D, R-6D, R-8D upto 22D
Hot Induction Long Radius Bends R-2D, R-3D, R-5D, R-6D, R-8D upto 22D
API-5L Hot Induction Long Radius Bends R-2D, R-3D, R-5D, R-6D, R-8D upto 22D
Induction Pipe Bending Bends 2D, 3D, 5D, 6D, 8D upto 22D
Induction Long Radius Pipe Bending Bends API 5L X42, X46, X52, X56, X60, X65, X70
Induction Long Radius Pipe Bending Bends API5LX-42, X-46, X-52, X-56, X-60, X-65, X-70
Long Radius Bends 30 Deg., 45 Deg., 60 Deg., 90 Deg., 180 Deg., 360 Deg. upto 60" Diameter
Long Radius Bends in API 5L X42, API 5L X46, API 5L X52, API 5L X56, API 5L Grade B
Long Radius Bends in API 5L X60, API 5L X65, API 5L X70, API 5L Grade-B
Long Radius Bends in API 5L X-42, API 5L X-46, API 5L X-52, API 5L X-56, API 5L Grade B
Long Radius Bends in API 5L X-60, API 5L X-65, API 5L X-70, API 5L Grade-B
SA-234 WPB, WPC, WP1, WP5, WP7, WP9, WP11CL7, WP12CL1, WP22, WP91
ASTM A-860 WPHY-42, WPHY-46, WPHY-52, WPHY-56, WPHY-60, WPHY-65, WPHY-70
ASTM A-860 WPHY42, WPHY46, WPHY52, WPHY56, WPHY60, WPHY65, WPHY70
MSS SP75 WPHY 42, WPHY 46, WPHY 52, WPHY 56, WPHY 60, WPHY 65, WPHY 70
MSS SP75 WPHY42, WPHY46, WPHY52, WPHY56, WPHY60, WPHY65, WPHY70
MSS-SP-75 WPHY42, WPHY46, WPHY52, WPHY56, WHPY60, WHPY65, WPHY70
MSS-SP-75 WPHY 42, WPHY 46, WPHY 52, WPHY 56, WHPY 60, WHPY 65, WPHY 70
MSS-SP-75 WPHY-42, WPHY-46, WPHY-52, WPHY-56, WHPY-60, WHPY-65, WPHY-70
MSS SP75 WPHY42, WPHY46, WPHY52, WPHY56, WHPY60, WHPY65, WPHY70
MSS SP75 WPHY 42, WPHY 46, WPHY 52, WPHY 56, WHPY 60, WHPY 65, WPHY 70
MSSSP75 WPHY-42, WPHY-46, WPHY-52, WPHY-56, WHPY-60, WHPY-65, WPHY-70
ASTM A-234 WPB, ASTM A234 WPC, ASTM A234 WPB Seamless, ASTM A234 WPC Seamless
ASTM A-234 WP1, WP11 CL1, WP11 CL3, WP12 CL1, WP22 CL1, WP22 CL3
ASTM A-234 WP5 CL1, WP5 CL3, WP9 CL1, WP9 CL3, WP91
ASTM A-403 WP304, 304L, 304H, 310S, 316, 316L, 316H, 321, 321H, 347, 347H, 317, 317L
ASTM A-420 WPL3, WPL6, WPL8, WPL9
ASTM A-182 F304, F304L, F304H, F310S, F316, F316L, F316H, F321, F321H, F347, F347H, F348
ASTM A-182 F1, F11, F12, F22, F5, F9, F91, F92
ASTM A-182 F-1, F-11, F-12, F-22, F-5, F-9, F-91, F-92
ASTM A-694 F-42, ASTM A694 F-46, ASTM A694 F-52, ASTM A694 F-56
ASTM A-694 F-60, ASTM A694 F-65, ASTM A694 F-70, ASTM A694 F-80
SAE / AISI Grade 1008, 1010, 1018, 1020, 1025, 1026, 1040, 1045, 1050, 4130, 4140, 4150, 4340
AISI-4130 L-80 according to API-5CT, 75KSI according to API-6A Quenched / Hardened & Tempered
SAE-4130 L-80 according to API-5CT, 75KSI according to API-6A Quenched / Hardened & Tempered
AISI-4140 L-80, P-110 according to API-5CT, API6A, NACE MR-01-75 Quenched / Hardened & Tempered
SAE-4140 L-80, P-110 according to API-5CT, API6A, NACE MR-01-75 Quenched / Hardened & Tempered
Duplex 2205, Duplex SAF 2205, Duplex SAF2205, Duplex UNS S31803, Din 1.4462 EN 10088 F51
Duplex SAF2205 SANMAC, URANUS 45N, PREN=33, PREN=34, PREN=35, PREN=36 DIN 1.4462
Duplex-2205 UNS S31803 / UNS S32205 DIN-1.4462 EN 10088-3 PREN = 33, PREN = 34, PREN = 35
Super Duplex 2507, Super Duplex SAF 2507, Super Duplex SAF-2507, Super Duplex UNS S32750 F53
Super Duplex SAF 2507 UNS S32750 DIN 1.4410 EN-10088 URANUS 47N(+) PREN=41 Minimum
Super Duplex UNS S32760 F-55 ASTM A182 F55 SA182 F-55 DIN 1.4501 UNS 32760 F55

ASTM A-234 WPB, WPC
ASME A-234 WPB, WPC
CARBON STEEL ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS.

MSS-SP 75 WPHY 42, WPHY 46, WPHY 52, WHPY 60, WPHY 65, WPHY 70
HIGH YIELD CARBON STEEL ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS.

ASME A-420 WPL6, WPL3
LOW TEMPERATURE CARBON STEEL ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS.

ASME A-234 WP5, WP9, WP11, WP12, WP22, WP91
CHROME-MOLY ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS.

ASTM A-403 WP304, WP304L, WP304H, WP321, WP321H, WP316, WP316L, WP316H, WP347, WP347H, WP309, WP309S, WP310, WP310S STAINLESS STEEL ELBOWS LR, SR, BENDS, CROSSES, STUB ENDS, EQUAL TEES, UN-EQUAL TEES, CONCENTRIC REDUCERS, ECCENTRIC REDUCERS, CAPS.

ANSI B16.9
ANSI B16.28
MSS-SP 75
MSS-SP 43
DIN 2605, 2625, 2626, 2617
BS 1640

ASTM A-105
ASTM A181 GR.I, GR.II
CARBON STEEL SLIPON FLANGES, BLIND FLANGES, WELD NECK FLANGES, THREADED & SOCKET WELD FLANGES, LAP JOINT FLANGES

ASTM A-182 F304, F304L, F316, F316L, F321, F321H, F347, F347H, F309S, F310S STAINLESS STEEL SLIPON FLANGES, BLIND FLANGES, WELD NECK FLANGES, THREADED & SOCKET WELD FLANGES, LAP JOINT FLANGES

ASTM A-182 F5, F9, F11, F12, F22, F91
CHROME-MOLY ALLOY STEEL SLIPON FLANGES, BLIND FLANGES, WELD NECK FLANGES, THREADED & SOCKET WELD FLANGES, LAP JOINT FLANGES

ANSI B16.5
MSS-SP 44
API 605
AWWA 207
BS TABLE D, E, F, H, J, K
ASA 150, 300, 600, 900, 1500, 2500 lbs
DIN ND 6, 10, 16, 25, 40

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Certificate & Inspection :

c/w Calibration Works Certificate EN10204 3.1/DIN 50049 3.1/ISO10474 3.1 Mill Test Report, NACE MR-01-03/NACE MR-01-75/ISO-15156, CE Marked, European Pressure Equipment Directive PED 97/23/EC, AD 2000-WO, ASME Boiler & Pressure Vessel Code Section-II Part-A Edition 2008, API 6A, with 3.2 certificate duly certified & approved by LRS-Lloyd's Register, GL-Germanischer Lloyd, BV-Bureau Veritas, DNV-Det Norske Veritas, ABS-American Bureau of Shipping, SGS, TUV, RINA, IRS, NORSOK APPROVED STANDARD M630, M650 Rev.3

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