Alloy Steel Buttweld Fittings are high-strength piping components designed for high-temperature, high-pressure, and severe service conditions. These fittings are alloyed with elements such as chromium and molybdenum to improve strength, corrosion resistance, creep resistance, and weldability.
Alloy Steel Buttweld Fittings are widely used in power plants, refineries, petrochemical units, and critical industrial piping systems where long service life, reliability, and leak-proof performance are essential.
Alloy Steel Buttweld Fittings are manufactured in accordance with ASTM A234 and related international standards. Commonly supplied grades include WP1, WP5, WP9, WP11, WP22, and WP91, suitable for elevated temperature and pressure applications in critical services.
Alloy Steel Buttweld Fittings Manufacturer in India | ASTM A234 WP1, WP5, WP9, WP11, WP22 & WP91 BW Fittings Supplier
Applications of Alloy Steel Buttweld Fittings
| ● Power Generation & Thermal Power Plants |
| ● Oil & Gas Refineries and Pipelines |
| ● Petrochemical & Chemical Processing Plants |
| ● Boilers, Heat Exchangers & Pressure Vessels |
| ● High-Temperature & High-Pressure Piping Systems |
| ● Fertilizer, Offshore & Process Industries |
Specification Table of Alloy Steel Buttweld Fittings
| Standard | ASTM A234, ASME SA234 |
|---|---|
| Grades | WP1, WP5, WP9, WP11, WP22, WP91 |
| Size | 1/2″ NB to 48″ NB |
| Schedule | SCH 10, SCH 40, SCH 80, SCH 160, XXS |
| Types | Elbow, Tee, Reducer, Cap, Stub End |
| Manufacturing Std. | ASME B16.9, MSS SP-75 |
Alloy Steel Buttweld Fitting Grades (Sub-Products)
| ● ASTM A234 WP1 Buttweld Fittings – Low alloy steel for moderate temperature service |
| ● ASTM A234 WP5 Buttweld Fittings – Chromium-molybdenum steel for high-temperature applications |
| ● ASTM A234 WP9 Buttweld Fittings – Enhanced oxidation and corrosion resistance |
| ● ASTM A234 WP11 Buttweld Fittings – Widely used in boilers and pressure piping |
| ● ASTM A234 WP22 Buttweld Fittings – Excellent strength and creep resistance |
| ● ASTM A234 WP91 Buttweld Fittings – Advanced alloy for ultra-high temperature service |
Mechanical Properties (Typical)
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation % |
|---|---|---|---|
| ASTM A234 WP11 | 205 | 415 | 20 |
| ASTM A234 WP22 | 205 | 415 | 20 |
| ASTM A234 WP91 | 415 | 585 | 20 |