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304 Stainless Steel Welded Pipe

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304 Stainless Steel Welded Pipe

Basic composition and properties Element Composition Range (%) Chromium (Cr) 18.0 – 20.0 Nickel (Ni) 8.0 – 10.5 Carbon (C) ≤ 0.08 Manganese (Mn) ≤ 2.0 Silicon (Si) ≤ 1.0 Phosphorus (P) ≤ 0.045 Sulfur (S) ≤ 0.030 Iron (Fe) Balance   key Properties: Corrosion Resistance: Resists oxidation, organic acids, and mild chemical environments. Ductility/Toughness: Maintains strength and flexibility even at low temperatures (no ductile-to-brittle transition). Weldability: Easily welded using common techniques (TIG, MIG, laser), though post-weld annealing may be needed to restore corrosion resistance. Non-magnetic: Austenitic structure makes it non-magnetic in annealed condition (may become slightly magnetic after cold working).   manufacturing process Welded Pipe Production: Forming: Steel coils are unrolled, flattened, and formed into a cylindrical shape via rollers. Welding: Edges are welded longitudinally using TIG, plasma, or high-frequency induction (HFI) w…