Butt Weld Fittings
Premium quality butt weld fittings for permanent, leak-proof connections in high-pressure systems
Premium Butt Weld Fittings
Starlight Tubes supplies high-quality butt weld fittings designed for permanent, leak-proof connections in high-pressure and high-temperature applications. Our butt weld fittings provide smooth flow transitions and are ideal for critical piping systems in oil & gas, petrochemical, and power generation industries.
Available in various materials and schedules, our butt weld fittings are manufactured using premium grade materials and undergo rigorous quality testing to ensure compliance with ASME B16.9, ASTM A403, and international specifications.
Technical Specifications
ASTM / ASME CompliantTechnical Specifications — ASME B16.9 Buttweld Fittings
Chemical limits and tensile ratings across carbon steel, stainless steel, and alloy buttweld fittings
| Material Category | ASTM Specification | Grades Supplied | Matching Pipe Standard |
|---|---|---|---|
| Carbon Steel | ASTM A234 | WPB, WPC | ASTM A106 Gr. B, API 5L Gr. B |
| Low-Temp Steel | ASTM A420 | WPL6, WPL3 | ASTM A333 Gr. 6 |
| Stainless Steel | ASTM A403 | WP304/304L, WP316/316L, WP321, WP347, WP310S | ASTM A312 TP304/316/321 |
| Duplex Steel | ASTM A815 | UNS S31803 (2205), UNS S32750 (2507) | ASTM A790 S31803 / S32750 |
| Nickel Alloy | ASTM B366 | WP625, WP600, WP276 (Hastelloy), WP400 (Monel) | ASTM B444, B165, B622 |
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Your Trusted Butt Weld Fittings Supplier
Starlight Tubes delivers premium butt weld fittings with unmatched quality and reliability for high-pressure piping systems.
Frequently Asked Questions on Butt Weld Fittings
Key engineering, tolerance, and international compliance answers from our metallurgical quality desk.
Butt weld fittings are used for permanent, leak-proof connections in high-pressure and high-temperature piping systems. They are welded directly to the pipe, providing smooth flow transitions and are ideal for oil & gas, petrochemical, and power generation industries.
Request Project Quotation for Butt Weld Fittings
Submit your required sizes, wall thicknesses, material grades, and total tonnage. Our technical sales engineers respond with complete mill pricing and lead times within 24 hours.