ASTM A234 Gr. WPB Carbon Steel Eccentric Reducer ASME B16.9 0.30% Carbon 1.60% Manganese
ASTM A234 WPB is the material specification for carbon steel fittings designed for high-temperature piping applications. This standard covers requirements for wrought carbon steel fittings suitable for welding, threaded, and flanged connections.
An eccentric reducer is a specialized pipe fitting used to connect two pipes of different diameters where the center lines are offset. This design enables smooth flow transition between varying pipe sizes while maintaining uninterrupted fluid path integrity.
- Material: ASTM A234 WPB carbon steel providing high strength and corrosion resistance
- Dimensional Standard: Manufactured to ASME B16.9 specifications ensuring proper fit and compatibility
- Eccentric Design: Offset center lines facilitate smooth flow transition between different pipe diameters
- Welding Compatibility: Suitable for welding connections, delivering strong and durable joints
Manufactured in accordance with ASME B16.9 dimensional standards, these reducers are available in both concentric and eccentric configurations to meet diverse piping requirements.
| NPS | O.D L (mm/inch) | O.D S (mm/inch) | H (mm/inch) |
|---|---|---|---|
| 3/4 x 1/2 | 26.7 / 1.05 | 21.3 / 0.84 | 38 / 1.50 |
| 3/4 x 3/8 | 26.7 / 1.05 | 17.3 / 0.68 | 38 / 1.50 |
| 1 x 3/4 | 33.4 / 1.32 | 26.7 / 1.05 | 51 / 2.00 |
| 1 x 1/2 | 33.4 / 1.32 | 21.3 / 0.84 | 51 / 2.00 |
| 1-1/4 x 1 | 42.2 / 1.66 | 33.4 / 1.32 | 51 / 2.00 |
| 1-1/4 x 3/4 | 42.2 / 1.66 | 26.7 / 1.05 | 51 / 2.00 |
| 1-1/4 x 1/2 | 42.2 / 1.66 | 21.3 / 0.84 | 51 / 2.00 |
| 1-1/2 x 1-1/4 | 48.3 / 1.90 | 42.2 / 1.66 | 64 / 2.50 |
| 1-1/2 x 1 | 48.3 / 1.90 | 33.4 / 1.32 | 64 / 2.50 |
| 1-1/2 x 3/4 | 48.3 / 1.90 | 26.7 / 1.05 | 64 / 2.50 |
| 1-1/2 x 1/2 | 48.3 / 1.90 | 21.3 / 0.84 | 64 / 2.50 |
| 2 x 1-1/2 | 60.3 / 2.38 | 48.3 / 1.90 | 76 / 3.00 |
| 2 x 1-1/4 | 60.3 / 2.38 | 42.2 / 1.66 | 76 / 3.00 |
| Element | C | Mn | P | S | Si | Cr | Mo | Ni | Cu | V | Nb |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Content (%) | ≤0.30 | 0.29-1.60 | ≤0.050 | ≤0.058 | ≥0.10 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.40 | ≤0.08 | 0.02 |
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