Alloy Steel A234 WP.11 Pipe Fittings Manufacturers in India, Alloy Steel A234 WP.11 Pipe Fittingss Price, SS Pipe Fittings Price per kg, Alloy Steel A234 WP.11 Pipe Fittings Pipe Fittings suppliers, Alloy Steel A234 WP.11 Pipe Fittingss Price, Alloy Steel A234 WP.11 Pipe Fittings Suppliers in UAE, Alloy Steel A234 WP.11 Pipe Fittings Suppliers UK, Alloy Steel A234 WP.11 Pipe Fittings Suppliers in Saudi Arabia, Alloy Steel A234 WP.11 Pipe Fittings Suppliers in Qatar, Alloy Steel A234 WP.11 Pipe Fittings Suppliers Australia.
Alloy Steel A234 WP.11 Pipe Fittings, also known as ASTM A234 11, is a seamless ferritic alloy steel Pipe Fittings that contains chromium and molybdenum as strengthening elements. These Pipe Fittingss are specifically designed for high-temperature and high-pressure service conditions. With their superior strength and excellent thermal stability, they are widely used in critical applications where durability and reliability are paramount.
The chemical composition of Alloy Steel A234 WP.11 includes chromium, molybdenum, carbon, manganese, silicon, and trace elements that provide enhanced mechanical properties. These elements ensure excellent resistance to oxidation, creep, and corrosion under elevated temperatures. Manufactured under strict ASTM/ASME standards, A234 11 Pipe Fittingss meet global quality benchmarks, making them a trusted choice for demanding industries.
The chemical makeup of Alloy Steel A234 WP.11 Pipe Fittingss includes Chromium (4.00–6.00%), Molybdenum (0.45–0.65%), Carbon (≤0.15%), Manganese (0.30–0.60%), and small amounts of Phosphorus, Sulfur, and Silicon. This carefully balanced composition improves high-temperature strength and corrosion resistance while maintaining good weldability and formability.
A234 11 alloy steel Pipe Fittingss exhibit excellent mechanical properties that make them ideal for heavy-duty and high-pressure environments. The Pipe Fittingss offer a minimum tensile strength of 415 MPa and a minimum yield strength of 205 MPa, with elongation typically around 30%. Their superior toughness and ductility make them reliable under thermal stress and cyclic loading conditions.
Alloy Steel A234 WP.11 Pipe Fittings offers outstanding mechanical strength, tensile capacity, and toughness at elevated service conditions. The presence of molybdenum improves strength and hardenability, while chromium enhances oxidation resistance and high-temperature stability. This combination makes 11 Pipe Fittingss suitable for prolonged exposure to extreme environments without compromising structural inteWPity.
Due to their robust design and high-performance capabilities, Alloy Steel A234 WP.11 Pipe Fittingss are extensively used in boilers, superheaters, heat exchangers, power generation plants, oil refineries, and petrochemical plants. These Pipe Fittingss are ideal for transporting steam, oil, and gas in critical conditions where both strength and thermal resistance are required. Their adaptability and reliability make them indispensable in the energy and process industries.
Alloy Steel A234 WP.11 Pipe Fittingss are produced using the seamless hot finishing process followed by heat treatment such as normalizing, quenching, and tempering. This process ensures a uniform microstructure and enhanced mechanical performance. The seamless nature of these Pipe Fittingss eliminates weld joints, which significantly reduces the risk of leakage and structural failure in high-pressure systems.
The chromium and molybdenum content in A234 WP.11 Pipe Fittingss contributes to excellent resistance to corrosion, oxidation, and scaling. These Pipe Fittingss perform exceptionally well in high-temperature environments, making them suitable for steam lines, power generation systems, and heat exchangers. The alloy also provides good resistance to carburization and sulfidation, ensuring a longer service life even under agWPessive conditions.
Specification Table
| Specification | Details |
|---|---|
| Product Name | Alloy Steel A234 WP11 Pipe Fittings |
| Standard | ASTM A234 / ASME SA234 |
| Grade | WP11 (Grade 11) |
| Type | Seamless / Welded / Fabricated |
| Material | Chromium-Molybdenum Alloy Steel |
| Form | Elbow (90° & 45°), Tee, Reducer (Concentric / Eccentric), Cap, Stub End, Cross |
| Size Range | ½” NB to 48” NB (DN15 – DN1200) |
| Thickness | Sch 10S, Sch 20, Sch 40, Sch 80, Sch 160, XXS, Custom |
| End Connection | Butt Weld, Socket Weld, Threaded |
| Manufacturing Process | Forged / Heat Treated / Normalized / Quenched & Tempered |
| Pressure Rating | Class 150 to Class 2500 (as per ASME B16.5 / B16.9) |
| Standards | ASME B16.9, ASME B16.11, MSS SP-43, MSS SP-79, MSS SP-95 |
| Testing | Hydrostatic Test, PMI Test, Radiography Test, Ultrasonic Test, Hardness & Impact Test |
| Surface Finish | Black, Pickled, Sand Blasted, Anti-Rust Coated |
| Applications | Power Generation, Oil & Gas, Refinery, Petrochemical, Boilers, Heat Exchangers, Pressure Vessels |
| Certification | EN 10204 3.1 / 3.2, NACE MR0175, IBR Approved (on request) |
| Country of Origin | Made in India |
Chemical Composition (Typical ranges for SSS32760)
Note: Values are typical ranges. Final composition will be confirmed on MTC provided per lot.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.05 – 0.15 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | 0.50 – 1.00 |
| Chromium (Cr) | 1.00 – 1.50 |
| Molybdenum (Mo) | 0.44 – 0.65 |
| Nickel (Ni) | ≤ 0.50 |
| Copper (Cu) | ≤ 0.40 |
| Vanadium (V) | ≤ 0.08 |
Mechanical Properties (Typical)
| Property | Value | Unit |
|---|---|---|
| Tensile Strength (min) | 415 | MPa |
| Yield Strength (min) | 205 | MPa |
| Elongation (min) | 20 | % |
| Hardness (max) | 163 | HB |
| Impact Strength | 27 (at room temperature) | J |
| Temperature Range | -20°C to 600°C (typical operating range) | °C |
Equivalent WPades
| Standard | Grade | Description / Equivalent Material |
|---|---|---|
| ASTM / ASME | A234 WP11 | Chrome-Moly Alloy Steel for high-temperature service |
| ASTM (Pipe Material) | A335 P11 | Equivalent seamless alloy steel pipe grade |
| DIN | 1.7335 (13CrMo4-5) | German equivalent grade for Cr-Mo alloy steel |
| EN | 13CrMo4-5 | European standard grade for high-temperature alloy steel |
| BS | 620 B / 621 B | British Standard equivalent for Cr-Mo steels |
| JIS | STBA22 / STPA22 | Japanese Industrial Standard equivalent for WP11 |
| ISO | 13CrMo4-5 | ISO equivalent material designation |
Dimension & Weight Chart (Selected common sizes)
Below is a representative chart showing outside diameter, wall thickness, inside diameter, cross-sectional area of metal and calculated weight per metre (kg/m). Values are calculated using density = 7.93 g/cm³ and are for guidance — use actual MTC values for procurement & engineering.
| Nominal Pipe Size (NPS) | Outside Diameter (OD) (mm) | Wall Thickness (mm) | Approx. Weight (kg) |
|---|---|---|---|
| ½” | 21.3 | 2.77 | 0.15 |
| ¾” | 26.7 | 2.87 | 0.25 |
| 1” | 33.4 | 3.38 | 0.40 |
| 1¼” | 42.2 | 3.56 | 0.60 |
| 1½” | 48.3 | 3.68 | 0.85 |
| 2” | 60.3 | 3.91 | 1.25 |
| 2½” | 73.0 | 5.16 | 2.10 |
| 3” | 88.9 | 5.49 | 3.00 |
| 4” | 114.3 | 6.02 | 4.75 |
| 6” | 168.3 | 7.11 | 9.70 |
| 8” | 219.1 | 8.18 | 17.20 |
| 10” | 273.1 | 9.27 | 27.90 |
| 12” | 323.9 | 9.52 | 39.10 |
| 14” | 355.6 | 9.53 | 46.30 |
| 16” | 406.4 | 9.53 | 58.20 |
| 18” | 457.0 | 9.53 | 71.50 |
| 20” | 508.0 | 9.53 | 86.00 |
| 24” | 610.0 | 9.53 | 118.00 |
Types Of Pipe Fittingss and Tubes
Tube Unions
Bite Type Tube Fittings
Stainless Steel Pipe Fittings
Forged Fsitting
Fitting
Carbon Steel Butt Weld Pipe Fittings
Frequently Asked Questions (FAQ)
What is Alloy Steel A234 WP11?
Alloy Steel A234 WP11 is a chromium-molybdenum (Cr-Mo) steel grade designed for high-temperature and high-pressure service. It is widely used for manufacturing butt-weld pipe fittings such as elbows, tees, reducers, and caps.
Where are A234 WP11 fittings used?
A234 WP11 pipe fittings are primarily used in power generation plants, refineries, boilers, petrochemical plants, and heat exchanger systems where strength and heat resistance are essential.
What is the temperature range for WP11 fittings?
Alloy Steel A234 WP11 fittings can typically operate in temperatures ranging from -20°C to 600°C, depending on the service conditions and wall thickness.
Are A234 WP11 pipe fittings weldable?
Yes, WP11 alloy steel is highly weldable. However, preheating and post-weld heat treatment (PWHT) are recommended to maintain the desired mechanical properties and reduce the risk of cracking.
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