304 Stainless Steel Tube

304 Stainless Steel Tube


ParameterDescriptionExample/Unit
Material GradeASTM/AISI/EN standard grade304, 316L, 321, 310S, Duplex 2205
TypeSeamless (SMLS) / Welded (ERW, EFW)Seamless (ASTM A312), Welded (ASTM A358)
Outer Diameter (OD)Pipe diameter range6mm – 2000mm (or 0.25"–80")
Wall ThicknessThickness range (schedule or mm/inch)0.5mm – 50mm (or SCH 5S–XXS)
LengthStandard or custom cut length5.8m (20ft), 6m (Fixed), Random
Surface FinishSurface treatmentAnnealed, Pickled, Polished (180-600#)
Tensile StrengthMaximum stress before breaking515 MPa (304) / 620 MPa (Duplex)
Yield StrengthStress at 0.2% offset deformation205 MPa (304) / 450 MPa (Duplex)
ElongationDuctility (% elongation at break)35–40% (304)
HardnessRockwell/Vickers hardnessHRB 80 (Annealed 304) / HV 220
Pressure RatingMaximum working pressure (PSI/Bar)1500 PSI (SCH 40, 304)
Corrosion ResistancePitting Resistance Equivalent Number (PREN)PREN ≥ 18 (316L) / ≥35 (Super Duplex)
StandardsCompliance with int'l standardsASTM A312, A269, A790 / EN 10216-5
CertificationQuality/testing certificatesISO 9001, PED 2014/68/EU, NACE MR0175


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