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Type
Welding Boss (Seamless / Welded)
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Dimension Range
1/4Inch NB To 32Inch NB
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Wall Thickness
Sch. 5S To Sch. XXS
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Material Category
Duplex Stainless Steel
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Grade Specification
UNS S31803
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Manufacturing Standard
ANSI B16.9 / ASTM A815
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Surface Finish
Machined Ends / Polished
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Typical Use
Branch Connections, Offshore Pipelines
We offer high-quality Duplex Steel UNS S31803 Welding Boss suitable for seamless or welded applications. Ranging from 1/4Inch NB to 32Inch NB with wall thickness from Sch. 5S to Sch. XXS, these welding bosses are made from Duplex Stainless Steel meeting Grade Specification UNS S31803. Manufactured under ANSI B16.9 / ASTM A815 standards, they feature machined ends or polished surface finish. Ideal for branch connections, our products cater to manufacturers and suppliers in need of reliable and durable welding solutions.