ASTM A234 WPB Concentric Reducer
ASTM A234 WPB concentric reducers are carbon steel pipe fittings designed to provide a smooth and gradual transition between different pipe diameters. Manufactured in accordance with ASME B16.9 dimensional requirements, WPB concentric reducers ensure uniform flow characteristics and reduced turbulence in piping systems.
Commonly used in oil & gas, petrochemical, power generation and industrial piping applications, ASTM A234 WPB concentric reducers are suitable for moderate temperature and pressure service where reliable strength and weldability are required.
C&N is a professional A234 WPB pipe fittings & flange manufacturer in China,
Concentric Reducer Specification
| Type | Reducer |
| Size | Seamless Reducer:1/2″~24″ DN15~DN600 Welded Reducer: 1/2″~100″ DN15~DN2500 |
| Wall thickness | sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs, std,sch5s, sch20s, sch40s, sch80s |
| Standards | ANSI B16.9,MSS SP-95, GOST 17375,DIN2566,JIS |
| Material | Carbon steel: ASTM/ASME A234 WPB,WPC Alloy steel: ASTM/ASME A234 WP 9-WP 12-WP 11-WP 22-WP 5-WP 91-WP 91 Stainless steel: ASTM/ASME A403 WP 304-304L,WP 316-316L,WP 321 Low-temperature steel: ASTM/ASME A402 WPL 3-WPL 6 High performance: ASTM/ASME A860 WPHY 42-46-52-60-65-70 |
| Surface treatment | Transparent oil, rust-proof black oil or hot galvanized |
| Packing | wooden case, pallet or as customers’ requirement |
| Applications | Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc |
ASTM A234 WPB chemical composition:
| Chemical composition of ASTM A234 WPB PIPE FITTINGS | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade | C | Mn | P max | S max | Si | Cr | Mo | Ni | Cu | Others |
| WPB | 0.30 max |
0.29-1.06 | 0.050 | 0.058 | 0.10 min |
0.40 max |
0.15 max |
0.40 max |
0.40 max |
V 0.08 max |
Mechanical Properties
| Property | Typical Requirement |
|---|---|
| Tensile Strength | 415 – 585 MPa |
| Yield Strength | ≥ 240 MPa |
| Elongation | ≥ 20% |
How to order our A234 WPB REDUCER?
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ASTM A234 WPB concentric reducers manufactured to ASME B16.9 provide a reliable and economical solution for diameter transitions in pressure piping systems.
With smooth flow characteristics, excellent weldability, and wide size availability, WPB concentric reducers are a standard choice for industrial pipeline projects worldwide.
Related Products
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ASTM A234 WPB Eccentric Reducers
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ASTM A234 WPB Elbows (45°, 90° LR / SR)
