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What is ASTM A234 WPB Fittings?
Quick answer
- Standard
- ASTM A234 / ASME SA234
- Minimum yield
- 240 MPa
- Product form
- Fittings
ASTM A234 WPB is the standard specification for wrought carbon steel butt-weld pipe fittings (elbows, tees, reducers, caps) for moderate- and high-temperature service, matched to A106 Grade B pipe.
Key characteristics
- ASTM A234 WPB is the standard specification for wrought carbon steel butt-weld pipe fittings (elbows, tees, reducers, caps) for moderate- and high-temperature service, matched to A106 Grade B pipe.
What does the ASTM A234 WPB Fittings specification cover?
ASTM A234 WPB Fittings: summary
- Standard
- ASTM A234 / ASME SA234
- Product form
- Fittings
- Size range
- Butt-weld ½" – 48" (larger fabricated to order) in schedules matching the pipe; socket-weld and threaded ⅛" – 4" in Class 2000, 3000, 6000 and 9000
- Certificates
- EN 10204 3.1; 3.2 on request
What are the mechanical properties of ASTM A234 WPB Fittings?
| Property | Value |
|---|---|
| Tensile strength | 415 – 585 MPa |
| Yield strength | 240 MPa |
Testing and documentation
- Specification
- ASTM A234 / ASME SA234
- Size range
- Butt-weld ½" – 48" (larger fabricated to order) in schedules matching the pipe; socket-weld and threaded ⅛" – 4" in Class 2000, 3000, 6000 and 9000
- Finish
- Annealed & pickled, shot-blasted, black painted or galvanised (by material)
- Ends
- Bevelled (butt-weld), socket-weld, threaded NPT/BSP
Testing & documents
- Chemical and mechanical tests of the starting material
- Dimensional inspection to B16.9 / B16.11
- Radiography of welded fittings (seamed WPW/WX)
- Hardness, IGC and impact tests as specified
- EN 10204 3.1 certificate; 3.2 with third-party inspection
Where is ASTM A234 WPB Fittings used?
Matching products
ASTM A234 WPB Fittings is typically used with ASTM A106 Grade B pipe in the same piping class.
What to include in your enquiry
- Specification and grade: ASTM A234 WPB Fittings
- Size, class and type
- Quantity and destination
- Tests and certificates (3.1 / 3.2)
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Frequently asked questions
What is ASTM A234 WPB Fittings used for?
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What is the minimum yield strength of ASTM A234 WPB Fittings?
240 MPa (240 MPa), with a minimum tensile strength of 415 – 585 MPa.
Which documents are supplied with ASTM A234 WPB Fittings?
EN 10204 3.1 mill test certificate as standard, with 3.2 and third-party inspection on request.