Stainless Steel Buttweld Fittings are widely used piping components designed to connect, change direction, reduce size, or branch piping systems. These fittings are known for their excellent corrosion resistance, high mechanical strength, dimensional accuracy, and long service life.
Manufactured in accordance with ASTM standards, Stainless Steel Buttweld Fittings are extensively used in oil & gas, petrochemical, chemical processing, power generation, refineries, and offshore applications where high pressure and temperature resistance is required.
Stainless Steel Buttweld Fittings are available in a wide range of austenitic grades to suit demanding service conditions. The most commonly supplied grades include ASTM A403 WP304, WP316, WP310, WP321 and WP347, offering excellent corrosion resistance, weldability, and high-temperature performance.
Stainless Steel Buttweld Fittings Manufacturer in India | ASTM A403 WP304 / WP316 / WP310 / WP321 / WP347 Supplier
Applications of Stainless Steel Buttweld Fittings
| ● Oil & Gas Pipelines |
| ● Chemical & Petrochemical Plants |
| ● Refineries & Process Industries |
| ● Power Plants & Heat Exchangers |
| ● Offshore & Marine Applications |
| ● High Pressure & High Temperature Piping Systems |
Specification Table of Stainless Steel Buttweld Fittings
| Standard | ASTM A403 / ASME SA403 |
|---|---|
| Grades | WP304, WP316, WP310, WP321, WP347 |
| Size | 1/2″ NB to 48″ NB |
| Schedule | SCH 5, 10, 20, 40, 80, 160, XXS |
| Types | Elbow, Tee, Reducer, Cap, Stub End, Cross |
| Manufacturing Process | Hot Formed / Cold Formed / Welded |
| End Connection | Buttweld |
Stainless Steel Buttweld Fitting Grades (ASTM A403)
| ● WP304 – Excellent corrosion resistance and good weldability |
| ● WP316 – Superior resistance to chlorides and chemical environments |
| ● WP310 – High chromium & nickel content for high-temperature applications |
| ● WP321 – Titanium stabilized grade for elevated temperature service |
| ● WP347 – Niobium stabilized grade with excellent creep resistance |
Mechanical Properties of Stainless Steel Buttweld Fittings (Typical)
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation % |
|---|---|---|---|
| WP304 | 205 | 515 | 40 |
| WP316 | 205 | 515 | 40 |
| WP310 | 205 | 520 | 40 |
| WP321 | 205 | 515 | 40 |
| WP347 | 205 | 515 | 40 |