DIN2631 ASTM A182 S31803/2205/2207 Duplex Steel Weld Neck flange

DIN2631 ASTM A182 S31803/2205/2207 Duplex Steel weld neck flangeThe type of  Fittingsweld neck flangeMaterials StandardSA182/A182MProduction StandardDIN2631Pressure Class75LB, 125LB, 150LB, 300LB, 400LB, 600LB, 900LB, 1500LB, 2500LB; 5K, 10K, 16K, 20K, 30K PN2.5, PN6, PN10, PN16, PN25, PN40, PN64, PN80, PN100, PN250, PN320, PN400Heat TreatmentSolutionSurface FinishingPickling,BlastingOriginalChinaTechnicsForgingMaterialS31803/2205/2207Wall ThicknessSCH10S-SCHXXSDiameter1/2"-72"Certification3.1 Mill CertificationPacking DetailPlywood Cases,Plywood Pallet,othersPayment30%T/T in advance,70% before shipmentDelivery timeAccording to the quantity of orderApplicationChemical processing, transport and storage, Oil and Gas exploration and processing equipment, Marine and other high chloride environments, Pulp and paper digesters, liquor tanks and paper machines.CHEMICAL PROPERTIES:Grade C Mn P S Si S31803/F51 ≤0.030 ≤2.00 ≤0.030 ≤0.02 ≤1.00 S32750/F53 ≤0.030 ≤1.20 ≤0.035 ≤0.02 ≤0.80 Grade Cr N Mo Ni V S31803/F51 21.0-23.0 0.08-0.20 2.5-3.5 4.5-6.5 / S32750/F53 24.0-26.0 0.24-0.32 3.0-5.0 6.0-8.0 ≤0.5 MECHANICAL PROPERTIES:GradeUltimate Tensile Strength ,psi MinimumYield Strength,ksi MinimumElongation Percent %Reduction of Area % S31803/F51 ≥620≥450≥25≥45S32750/F53 ≥800≥550≥15/

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