
A/SA 789/790 Duplex Stainless Steel Welded Pipe
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Description:Duplex Stainless Steel Welded Pipe & Tube
Standard: ASTM A789, A790, A928
Material: UNS 31803,S32205,S32304,S32750,S32760 etc.
Nominal Dia: 3/8" to 80" NB for welded pipe ,Schedules: 5S, 10S, 40S, 80S, 10, 20, 30...120, 140, 160, XXS
All dimensions are in accordance with ANSI B36.19 and ANSI B36.10
Size range for tube:OD 1/4" to 80" (6mm to 2000mm),THk 0.02" to 1.5" (0.5mm to 38mm)
Length:20 m(Max) or as your requirement
Process: EFW (argon arc welding /TIG, plasma arc welding/PAW, and submerged arc welding/SAW)
Finish: Annealed & pickled,polished
Ends: Beveled or plain end, square cut, burr free ,Plastic Cap at Both end
Packing: Bare packing/bundle packing with woven bag/wooden or steel frame crate packing/plastic cap protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested.
Inspection and Test Procedure
1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material
2.100% Dimension & Visual Examination
3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Transverse-guided face bend test
4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)
5.Radiographic Test for Welded Pipe (shall be accordance with specification,or shall be as agreed upon between the purchaser and vendor)
6.Straightness Test (optional)
7.Roughness Test (optional)
8.Intergranular Corrosion Test(optional)
9.Impact Test (optional)
10.Grain Size Determinations (optional)
NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION.