Duplex Stainless Steel Pipe

Duplex Stainless Steel PipeDuplex stainless steel pipes are becoming more and more common. Due to its excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion, duplex stainless steel tubing are being offered by all the major stainless steel mills. Sheye Metal is one of the leading manufacturers and suppliers of stainless steel products. Duplex stainless pipe is one of the major products in Sheye Metal. Duplex stainless steel pipe can be divided into two types: seamless duplex stainless steel pipe and welded stainless steel pipe. Sheye Metal can manufacture stainless steel duplex pipe in S31500, S31803, S32205, S32304, S32520,S32550, S32750, S32760, and others. Duplex stainless steel pipes are always inventoried in diameter 10mm to 762mm. The wall thickness of duplex stainless tube we produce is 0.5-50mm.Specification of Duplex Stainless Steel Pipe Size OD: 10 ~ 762mm; WT: 0.5 ~ 50mm; Length: 6m, 12m, Max.18mProcess Seamless, WeldedGrade S31500,  S31803,  S32205,  S32304,  S32520, S32550,  S32750,  S32760Standard ASTM A789, ASTM A790Surface Aid Pickling, Polishing(180#, 220#, 240#, 320#, 400#, 600#)Theoretical Weight(kg/m) Weight/meter = (OD-WT)*WT*0.02507    Both OD and WT in mm.Note: OD is the specified outside diameter.WT is the specified wall thicknessChemical Composition Aof Duplex Stainless Steel PipeUNS C Mn P S Si Ni Cr Mo N Cu Others S31500 0.0301.20-2.000.0300.0301.40-2.004.2-5.218.0-19.02.50-3.000.05-0.10……S31803 0.0302.000.0300.0201.004.5-6.521.0-23.02.5-3.50.08-0.20……S32205 0.0302.000.0300.0201.004.5-6.522.0-23.03.0-3.50.14-0.20……S32304 0.0302.500.0400.0401.003.0-5.521.5-24.50.05-0.600.05-0.200.05-0.60…S32520 0.0301.500.0350.0200.805.5-8.024.0-26.03.0-5.00.20-0.3560.5-3.00…S32550 0.041.500.0400.0301.004.5-6.524.0-27.02.9-3.90.10-0.251.50-2.50…S32750 0.0301.200.0350.0200.806.0-8.024.0-26.03.0-5.00.24-0.320.5…S32760 0.051.000.0300.0101.006.0-8.024.0-26.03.0-4.00.20-0.300.50-1.00W0.50-1.00Note A: Maximum, unless a range or minimum is indicated. Where ellipses(…) appear in this table, there is no minimum and analysis for the element need not to be determined or reported.Tensile and Hardness of Duplex Stainless Steel PipeUNS Designation Tensile Strength, min MPa Yield Strength, min MPa Elongation in 50mm min, % Hardness, Max     HBW HRC S31500 6304403029030S31803 6204502529030S32205 6554502529030S32304 6004002529030S32520 77055025310…S32550 7605501529731S32750 8005501530032S32760 75055025300…Tolerances of Duplex Stainless Steel PipeGroupSize, Outside Diameter, mmTolerances in Outside Diameter, mmAverage Wall Tolerance in Wall Thickness, %Minimum Wall Tolerances in Wall Thickness, %Tolerances in Cut Length, mmThin Wall TubesOverUnderOverUnder1Up to 12.7, excl±0.13±1530030…212.7 to 38.0, excl±0.13±1020030Less than 1.6mm specified338.1 to 88.9, excl±0.25±1020050Less than 2.4mm specified488.9 to 139.7, excl±0.38±1020050Less than 3.8mm specified5139.7 to 203.2, excl±0.76±1020050Less than 3.8mm specifiedPacking Information of Duplex Stainless Steel PipeDuplex stainless steel pipes from Sheye Metal are packed according to the customer's requirement. To avoid any damage which might be caused during international transportation, we provide some optional packaging methods, including woven bags, plywood cases, and wooden boxes.If you are going to buy high quality duplex stainless steel pipe in stock, please feel free to contact Sheye Metal, which is one of the well-known manufacturers and suppliers of good duplex stainless steel pipe.


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