ASTM A234 Gr WPC
ASTM A234 WPC Pipe Fittings
Emirerri Steel is a leading manufacturer and global supplier of ASTM A234 WPC Pipe Fittings, known for their superior strength, toughness, and performance in high-temperature and high-pressure applications. ASTM A234 Gr WPC covers wrought carbon steel and alloy steel butt-weld pipe fittings used for moderate to high-temperature services.
These fittings connect seamless and welded pipes and are widely used in oil refineries, power plants, petrochemical industries, and pressure piping systems. With their outstanding mechanical strength and durability, ASTM A234 Gr WPC fittings ensure leak-proof and long-lasting connections.
Key Features
Excellent resistance to pressure and temperature fluctuations
Superior mechanical strength and toughness
Smooth internal surface for optimal flow characteristics
High corrosion and oxidation resistance
Suitable for welding and fabrication applications
Dimensional accuracy and precise wall thickness
Specification of ASTM A234 WPC Pipe Fittings
| Standard | Specification |
|---|---|
| Product | Carbon Steel Butt Weld Pipe Fittings |
| Grade | ASTM A234 Gr WPC |
| Standard | ASME B16.9, ASME B16.11, MSS-SP-75 |
| Material Type | Wrought Carbon Steel |
| Manufacturing Type | Seamless / Welded / Fabricated |
| Size Range | ½” NB to 48” NB |
| Dimensions | ASME/ANSI B16.9, B16.28 |
| Type | Elbow, Tee, Reducer, Cap, Stub End, Bend |
| Pressure Rating | SCH 10S to SCH XXS |
| End Connection | Beveled / Plain / Threaded |
| Form | Seamless / ERW / Welded / Fabricated |
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM | A234 WPC |
| ASME | SA234 WPC |
| EN | 10253-2 Grade P355NH |
| DIN | St52.0 |
| JIS | G3456 STPT480 |
Available Sizes
Seamless: ½” NB to 24” NB
Welded / Fabricated: 24” NB to 72” NB
Wall Thickness: SCH 10 to SCH 160, XXS, Custom on Request
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.30 – 0.35 |
| Manganese (Mn) | 0.29 – 1.06 |
| Phosphorus (P) | ≤ 0.050 |
| Sulfur (S) | ≤ 0.058 |
| Silicon (Si) | 0.10 – 0.35 |
| Nickel (Ni) | ≤ 0.40 |
| Chromium (Cr) | ≤ 0.40 |
| Copper (Cu) | ≤ 0.40 |
| Molybdenum (Mo) | ≤ 0.15 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 485 MPa (min) |
| Yield Strength | 275 MPa (min) |
| Elongation | 20% (min) |
| Hardness (HB) | 197 (max) |
Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1425 – 1540°C |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 60.5 W/m·K |
| Specific Heat | 486 J/kg·K |
Types of ASTM A234 WPC Pipe Fittings
Elbow (45°, 90°, 180° – Long/Short Radius)
Equal & Reducing Tee
Concentric & Eccentric Reducer
End Cap
Stub End (Short / Long Pattern)
Pipe Bend (2D, 3D, 5D, 10D Radius)
Cross Fittings
Corrosion Resistance
ASTM A234 Gr WPC fittings offer good resistance to oxidation and mild corrosive environments. For enhanced protection, these fittings can be galvanized, epoxy coated, or painted, making them suitable for use in humid and marine atmospheres.
Heat Resistance
ASTM A234 Gr WPC Pipe Fittings maintain their mechanical integrity and toughness even under elevated temperature conditions. They are suitable for applications involving steam lines, high-temperature pipelines, and heat exchangers.
Heat Treatment
After forming, fittings under ASTM A234 Gr WPC are typically subjected to normalizing, tempering, or stress relieving. This improves grain structure, removes internal stresses, and enhances ductility and mechanical properties.
Welding
These fittings can be welded using standard MIG, TIG, and SMAW welding processes. Preheating may be required depending on thickness, and post-weld heat treatment (PWHT) is often recommended to maintain toughness and reduce residual stresses.
Fabrication
ASTM A234 WPC Pipe Fittings are easy to machine, bend, and fabricate. They can be cut and formed using conventional carbon steel fabrication techniques, ensuring high dimensional precision and performance in complex piping systems.
Applications
Oil & Gas Pipelines
Power Generation Plants
Chemical Processing Units
Petrochemical Refineries
Pressure Vessel Piping
Heat Exchangers
Water Treatment Systems
Marine and Offshore Installations