Duplex Stainless Steel Pipe Welded

In order to fulfill the changing demands of our clients, we have been engaged in offering a quality range of Duplex Stainless Steel Pipes. The vendors of our firm make use of stainless steel in the manufacturing process. Owing to the attributes like dimensional accuracy and perfect finishing, these products are widely applauded among the patrons. Moreover, customers can avail these steel pipes in varied grades like UNS NO S 31803 & S 32205 and types such as ERW/welded/fabricated.

Range : ½” NB TO 24” NB IN SCH 5 , 10, 20 , 40 , STD , 60 , 80 , XS , 100 , 120 , 140 , 160 & XXS as Per NACE MR 01 75 

Type :  ERW / WELDED/ FABRICATED

Length : Single Random, Cut Length

End : Plain End, Bevelled End, Threaded

Duplex Pipe & Super Duplex Pipe 
Standard : ASTM / ASME SA 790 

Grade : UNS NO S 31803 , S 32205

Test Certificate
Mill Test Certificate as per EN 10204 / 3.1

Duplex Stainless Steel Pipe Welded Quality Checks

Because welding duplex stainless steel is not fool-proof it is important to perform quality checks. We normally suggest that when developing a weld procedure it is critical to test the corrosion resistance, the impact toughness, and the ferrite/austenite mix in the weld qualification. The welding guides have more detail on which test is appropriate for each material. Once your WPS is written to provide good corrosion, toughness, and ferrite the final production weld should also yield good results. Since it is often impossible to fully test the final product, we usually suggest testing the weld bead for ferrite content. Typically incorrect ferrite levels will be the first indication of a problem. If a problem is found, further testing should be performed.