Duplex Stainless Steel - Superior Corrosion Resistance

Mar 10, 2026

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ASME SA213 TP304 Stainless Steel Seamless Heat Exchanger TubeASME SA268 TP410 Bright Annealed Seamless TubeASME SA268 TP430 Stainless Steel Heat Exchanger Tube

Chemical Composition

Element Composition (%)
Carbon (C) ≤ 0.030
Chromium (Cr) 21.0 - 23.0
Nickel (Ni) 4.5 - 6.5
Molybdenum (Mo) 2.5 - 3.5
Nitrogen (N) 0.08 - 0.20
Manganese (Mn) ≤ 2.00
Silicon (Si) ≤ 1.00
Phosphorus (P) ≤ 0.035
Sulfur (S) ≤ 0.020

⚙️ Mechanical Properties

Property Value
Yield Strength (MPa) ≥ 450
Tensile Strength (MPa) 620 - 880
Elongation (%) ≥ 25
Hardness (HRC) 22 - 28
Critical Pitting Temperature (°C) ≥ 35
PREN Value ≥ 35
Impact Energy at -40°C (J) ≥ 60

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