ASTM A234 WP91 Alloy Fittings – Superior Strength for High-Pressure Applications
ASTM A234 WP91 Alloy Fittings are highly regarded in the industry for their superior strength, exceptional resistance to corrosion, and ability to withstand high-pressure environments. These fittings are widely used in industries such as power generation, petrochemical, oil and gas, and chemical processing. At ASC LLP, we provide high-quality A234 Alloy Fittings, manufactured in compliance with international standards to meet diverse application needs.
What is ASTM A234 WP91 Alloy Fittings?
ASTM A234 WP91 Alloy Fittings refer to wrought alloy steel fittings used in piping systems for high-pressure applications. These fittings are manufactured from WP91 grade alloy steel, known for its excellent mechanical properties, such as high tensile strength, durability, and resistance to extreme temperatures. Alloy fittings ASTM A234 are typically used for connecting pipes in various configurations, including elbows, tees, reducers, and caps.
The “WP” in WP91 stands for “Wrought Product,” while “91” signifies the specific grade of the alloy. This grade is particularly renowned for its high chromium (Cr) and molybdenum (Mo) content, which gives it superior resistance to oxidation and corrosion, making it suitable for high-temperature applications.
Properties of ASTM A234 WP91 Alloy Fittings
ASTM A234 WP91 Alloy Fittings properties are what set them apart in high-stress and high-temperature environments. Some of the key properties include:
- High Tensile Strength: These fittings have high tensile strength, making them suitable for applications that involve high-pressure systems and environments where mechanical stress is a factor.
- Temperature Resistance: A234 Alloy Fittings can withstand extreme temperatures, both hot and cold. The WP91 grade is engineered to maintain structural integrity in high-temperature conditions, up to 600°C (1112°F), which is essential in industries like power generation and chemical processing.
- Corrosion and Oxidation Resistance: The chromium and molybdenum composition of Alloy ASTM A234 fittings provides excellent corrosion and oxidation resistance. This makes these fittings suitable for use in harsh and corrosive environments, such as refineries and offshore platforms.
- Enhanced Durability: These fittings are designed to last longer in harsh environments, reducing the need for frequent replacements and minimizing maintenance costs.
- Excellent Creep Strength: ASTM A234 WP91 Alloy Fittings are renowned for their excellent creep strength, which allows them to maintain stability under long-term exposure to high temperatures and pressures.
- Toughness at Low Temperatures: Even at low temperatures, A234 Alloy Fittings retain their toughness and reliability, ensuring a safe and efficient piping system in cryogenic environments.
Advantages of ASTM A234 WP91 Alloy Fittings
ASTM A234 WP91 Alloy Fittings advantages make them a preferred choice for many industrial sectors. Key advantages include:
- Superior Mechanical Performance: Due to their robust composition and manufacturing process, Alloy fittings ASTM A234 are ideal for high-pressure and high-temperature systems, ensuring longevity and reliability in critical applications.
- Cost-Effective Solution: The longevity and durability of these fittings contribute to lower maintenance costs and fewer replacements over time, making them a cost-effective solution for industries that require high-performance materials.
- Versatility: ASTM A234 WP91 Alloy Fittings are available in a wide range of shapes and sizes, such as elbows, tees, caps, reducers, and bends, providing flexibility for different piping systems and configurations.
- Energy Efficiency: These fittings are commonly used in power plants and energy sectors because they allow for efficient heat transfer and maintain their structural integrity at high temperatures, improving overall energy efficiency.
- Compliance with International Standards: Manufactured in accordance with stringent ASTM standards, Alloy fittings ASTM A234 meet international safety and quality benchmarks, ensuring high reliability and performance in demanding applications.
- Adaptability to Harsh Conditions: Whether used in refineries, chemical plants, or power plants, ASTM A234 WP91 Alloy Fittings can handle extreme working conditions like high pressure, elevated temperatures, and corrosive environments.
Schedule and Size Chart
| Nominal Pipe Size (NPS) | Outside Diameter (OD) | Wall Thickness (mm) | Schedule 40 | Schedule 80 | Schedule 160 |
| 1/2″ | 21.3 mm | 2.77 mm | Yes | Yes | Yes |
| 3/4″ | 26.7 mm | 3.91 mm | Yes | Yes | Yes |
| 1″ | 33.4 mm | 4.55 mm | Yes | Yes | Yes |
| 1-1/2″ | 48.3 mm | 5.08 mm | Yes | Yes | Yes |
| 2″ | 60.3 mm | 5.54 mm | Yes | Yes | Yes |
| 3″ | 88.9 mm | 7.62 mm | Yes | Yes | Yes |
| 4″ | 114.3 mm | 8.56 mm | Yes | Yes | Yes |
| 6″ | 168.3 mm | 11.13 mm | Yes | Yes | Yes |
| 8″ | 219.1 mm | 12.7 mm | Yes | Yes | Yes |
Mechanical Properties Chart
| Property | Value |
| Tensile Strength | ≥ 585 MPa (85 ksi) |
| Yield Strength | ≥ 415 MPa (60 ksi) |
| Elongation (in 2 inches) | ≥ 20% |
| Hardness (Brinell) | 230 max |
| Impact Toughness (Charpy) | ≥ 20 Joules at -46°C |
| Modulus of Elasticity | 207 GPa |
Specifications Chart
| Specification | Details |
| Material Grade | ASTM A234 WP91 |
| Type | Alloy Steel, Wrought Fittings |
| Manufacturing Process | Seamless, Welded, Heat Treatment |
| Standards | ASME B16.9, ASME B16.28, MSS SP-43 |
| End Connections | Butt-weld, Socket Weld, Threaded |
| Size Range | 1/2” to 48” NPS |
| Pressure Rating | Class 150 to Class 2500 |
| Heat Treatment | Normalized and Tempered |
Chemical Composition Chart
| Element | Composition (%) |
| Carbon (C) | 0.08 – 0.12 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.010 |
| Silicon (Si) | 0.20 – 0.50 |
| Chromium (Cr) | 8.00 – 9.50 |
| Molybdenum (Mo) | 0.85 – 1.05 |
| Vanadium (V) | 0.18 – 0.25 |
| Nitrogen (N) | ≤ 0.03 |
Physical Properties Chart
| Property | Value |
| Density | 7.8 g/cm³ |
| Melting Point | 1425 – 1510°C |
| Thermal Conductivity | 27.0 W/m•K at 20°C |
| Specific Heat | 460 J/kg•K |
| Electrical Resistivity | 0.99 µΩ•m at 20°C |
| Thermal Expansion | 12.3 x 10⁻⁶ /°C |
| Modulus of Elasticity | 207 GPa |
Application Chart
| Industry | Application |
| Power Generation | Boiler systems, superheaters, heat exchangers, steam pipelines |
| Oil and Gas | Refineries, pipeline networks, offshore platforms, transportation of crude oil and gas |
| Chemical Processing | Corrosive fluid handling, high-pressure chemical reactors |
| Petrochemical | Hydrocrackers, catalytic reformers, distillation columns |
| Marine and Offshore | Subsea piping, offshore drilling platforms, shipbuilding |
| Nuclear Plants | Nuclear reactors, steam generators, cooling systems |
| Aerospace | Heat exchangers, aircraft turbines, high-stress components |
Why Choose ASC LLP for your projects?
At ASC LLP, we take pride in being a leading manufacturer and exporter of ASTM A234 WP91 Alloy Fittings. We are committed to delivering top-quality products that meet the highest standards of excellence. Here’s why you should choose us:
- High-Quality Manufacturing: Our ASTM A234 WP91 Alloy Fittings are manufactured using cutting-edge technology and tested rigorously to ensure they meet or exceed industry standards.
- Wide Range of Products: We offer a diverse range of A234 Alloy Fittings in different shapes, sizes, and specifications to meet the varied needs of our customers.
- Expert Technical Support: Our team of experts is always available to offer technical guidance and assistance, ensuring you select the right fittings for your application.
- Global Supply Chain: We are well-known A234 Alloy Fittings exporters, supplying our products to clients all around the world, ensuring timely delivery and consistent quality.
- Competitive Pricing: At ASC LLP, we offer highly competitive prices without compromising on the quality and performance of our products.
ASTM A234 WP91 Alloy Fittings are essential components for industries that require strong, durable, and corrosion-resistant materials capable of withstanding extreme pressures and temperatures. Whether it’s in power plants, oil and gas, petrochemical, or chemical processing, Alloy fittings ASTM A234 deliver reliable performance and longevity.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASTM A234 WP91 Alloy Fittings. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
