ASTM A234 WPB Carbon Steel Butt Weld Fittings For Shipbuilding
Carbon Steel ASTM A234 WPB for Butt Weld Fittings
Specifications
Carbon Steel Butt Weld Fittings are wrought carbon steel fittings designed for permanent, full-strength connections in high-pressure and high-temperature piping systems. Manufactured in accordance with ASME B16.9 dimensional standards, these fittings are butt-welded directly to pipe, providing smooth flow transitions, excellent structural integrity, and the ability to be radiographically inspected for quality assurance.
Pipe Fitting Standards
| Pipe fitting standards | Description |
| ASTM A234 | Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service |
| ASTM A105 | Standard Specification for Carbon Steel Forgings for Piping Applications |
| ASTM 403 | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
Dimension of ASME B16.9
Dimensions of 90-deg Elbow
| Nominal Pipe Size (NPS) |
Outside Diameter at Bevel | Center-to-end | Center-to-end | Center-to-end |
| 90-deg LR Elbows, A | 90-deg SR Elbows, A | 90-deg 3D Elbows, A | ||
| 1⁄2 | 21.3 | 38 | 25 | |
| 3⁄4 | 26.7 | 38 | 32 | 57 |
| 1 | 33.4 | 38 | 38 | 76 |
| 11⁄4 | 42.2 | 48 | 51 | 95 |
| 11⁄2 | 48.3 | 57 | 64 | 114 |
| 2 | 60.3 | 76 | 76 | 152 |
| 21⁄2 | 73 | 95 | 89 | 190 |
| 3 | 88.9 | 114 | 102 | 229 |
| 31⁄2 | 101.6 | 133 | 127 | 267 |
| 4 | 114.3 | 152 | 152 | 305 |
| 5 | 141.3 | 190 | 203 | 381 |
| 6 | 168.3 | 229 | 254 | 457 |
| 8 | 219.1 | 305 | 305 | 610 |
| 10 | 273 | 381 | 356 | 762 |
| 12 | 323.8 | 457 | 406 | 914 |
| 14 | 355.6 | 533 | 457 | 1 067 |
| 16 | 406.4 | 610 | 508 | 1 219 |
| 18 | 457 | 686 | 559 | 1 372 |
| 20 | 508 | 762 | 610 | 1 524 |
| 22 | 559 | 838 | 1 676 | |
| 24 | 610 | 914 | 1 829 | |
| 26 | 660 | 991 | 1 981 | |
| 28 | 711 | 1 067 | 2 134 | |
| 30 | 762 | 1 143 | 2 286 | |
| 32 | 813 | 1 219 | 2 438 | |
| 34 | 864 | 1 295 | 2 591 | |
| 36 | 914 | 1 372 | 2 743 | |
| 38 | 965 | 1 448 | 2 896 | |
| 40 | 1 016.0 | 1 524 | 3 048 | |
| 42 | 1 067.0 | 1 600 | 3 200 | |
| 44 | 1 118.0 | 1 676 | 3 353 | |
| 46 | 1 168.0 | 1 753 | 3 505 | |
| 48 | 1 219.0 | 1 829 | 3 658 | |
| GENERAL NOTE: All dimensions are in millimeters. | ||||
Dimensions of 45-deg Elbow
| Nominal Pipe Size(NPS) | Outside Diameter at Bevel | Center-to-end | Center-to-end |
| 45-deg LR Elbows, B | 45-deg 3D Elbows, B | ||
| 1⁄2 | 21.3 | 16 | |
| 3⁄4 | 26.7 | 19 | 24 |
| 1 | 33.4 | 22 | 31 |
| 11⁄4 | 42.2 | 25 | 39 |
| 11⁄2 | 48.3 | 29 | 47 |
| 2 | 60.3 | 35 | 63 |
| 21⁄2 | 73 | 44 | 79 |
| 3 | 88.9 | 51 | 95 |
| 31⁄2 | 101.6 | 57 | 111 |
| 4 | 114.3 | 64 | 127 |
| 5 | 141.3 | 79 | 157 |
| 6 | 168.3 | 95 | 189 |
| 8 | 219.1 | 127 | 252 |
| 10 | 273 | 159 | 316 |
| 12 | 323.8 | 190 | 378 |
| 14 | 355.6 | 222 | 441 |
| 16 | 406.4 | 254 | 505 |
| 18 | 457 | 286 | 568 |
| 20 | 508 | 318 | 632 |
| 22 | 559 | 343 | 694 |
| 24 | 610 | 381 | 757 |
| 26 | 660 | 406 | 821 |
| 28 | 711 | 438 | 883 |
| 30 | 762 | 470 | 964 |
| 32 | 813 | 502 | 1 010 |
| 34 | 864 | 533 | 1 073 |
| 36 | 914 | 565 | 1 135 |
| 38 | 965 | 600 | 1 200 |
| 40 | 1 016.0 | 632 | 1 264 |
| 42 | 1 067.0 | 660 | 1 326 |
| 44 | 1 118.0 | 695 | 1 389 |
| 46 | 1 168.0 | 727 | 1 453 |
| 48 | 1 219.0 | 759 | 1 516 |
Pipe fitting Manufacturing Process
Carbon Steel Butt Weld Fittings Fittings Applications
- Oil and gas pipelines (onshore and offshore)
- Chemical and petrochemical processing
- Power generation (fossil fuel, nuclear)
- Refineries and processing facilities
- High-pressure steam and water lines
- Pulp and paper mills
- Marine and shipbuilding
ASTM A234 WPB Pipe Fittings Packing & Loading
→A large number of pipe fittings are in stock in the warehouse
→Customized non-standard pipe fittings
→Pipe fittings transported in containers
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.