ASTM A234 WP22 Elbow 90° LR & SR | ASME B16.9 Alloy Steel Pipe Fittings Supplier
We are a professional ASTM A234 WP22 elbow manufacturer and supplier in China, providing high-quality alloy steel pipe fittings for high-temperature and high-pressure piping systems worldwide.
Our WP22 90 degree elbows (Long Radius & Short Radius) are produced in accordance with ASME B16.9 standards, ensuring excellent performance in demanding industrial environments.
What is ASTM A234 WP22 Elbow
ASTM A234 WP22 elbow is a type of buttweld alloy steel pipe fitting used to change the direction of fluid flow in pipelines.
Available types:
- 90° Long Radius (LR) Elbow – reduces pressure drop, smoother flow
- 90° Short Radius (SR) Elbow – suitable for compact installations
WP22 (2.25Cr–1Mo) alloy steel offers:
- Excellent high-temperature strength
- Good creep resistance
- Strong oxidation resistance
ASTM A234 WP22 Elbow Specifications
| Item | Details |
|---|---|
| Standard | ASTM A234 WP22 |
| Dimensions | ASME B16.9 |
| Type | LR / SR (Long Radius / Short Radius) |
| Angle | 90 Degree |
| Size Range | 1/2” NB to 48” NB |
| Schedule | SCH 10 to SCH XXS |
| Manufacturing | Seamless / Welded |
Chemical Composition of WP22
| C | Mn | Si | Cr | Mo |
|---|---|---|---|---|
| 0.05–0.15 | 0.30–0.60 | ≤0.50 | 2.00–2.50 | 0.87–1.13 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥415 MPa |
| Yield Strength | ≥205 MPa |
| Elongation | ≥20% |
| Hardness | ≤197 HB |
👉 Hardness tested according to ASTM A234 requirements to ensure proper heat treatment and material stability.
Heat Treatment
- Normalizing + Tempering (N+T)
- Quenching + Tempering (Q+T)
Ensures optimal mechanical performance and long-term reliability in high-temperature service.
Applications of ASTM A234 WP22 Elbows
- Power Plants (boilers, steam pipelines)
- Oil & Gas Industry
- Petrochemical Plants
- Refineries
- High-temperature piping systems
Inspection & Testing
- Chemical composition analysis
- Mechanical property testing
- Hardness testing (HB)
- Dimensional inspection
- Non-destructive testing (NDT)
- Hydrostatic testing
- Third-party inspection (SGS / BV / TUV available)
Packaging & Delivery
- Standard export wooden cases (fumigation-free)
- Protective packing for long-distance shipment
- Delivery time: 7–25 days depending on quantity
Why Choose Our WP22 Elbows
- ✔ Professional alloy steel fittings manufacturer in China
- ✔ Strict quality control system
- ✔ Competitive factory price
- ✔ Fast delivery & global export experience
- ✔ Mill Test Certificate (EN 10204 3.1 / 3.2)
- ✔ Custom sizes and specifications available
ASTM A234 WP22 ELBOW ASME B16.9
Related Products (Alloy Steel Piping System)
- ASTM A213 T22 Seamless tube
- ASTM A234 WP22 Tee
- ASTM A335 P22 Alloy Steel Pipes
- ASTM A182 F22 Weld neck Flanges
