Duplex 2205 Stainless Steel

    Duplex 2205

    Duplex 2205 Stainless Steel – UNS S31803. High chloride stress corrosion resistance at high strength, superior to 304/316 grades in corrosion performance, excellent notch toughness. vSM stocks alloy 2205 (uns s31803) bars between 0.5 – 6.5 in.

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    Duplex 2205 Specification/Condition

    • ASTM A484/ NACE MR0175

    Duplex 2205 Applications

    Duplex 2205 Technical Data

    • UTS (KSI): 109 Min (125 ksi Min)
    • Yield 0.2% Offset (KSI): 80 ksi Min (110 ksi Min)
    • EL (% Min): 30% (12%)
    • RA (% Min): 50% ((33%)
    • Hardness (HRC): 28 HRC (36 HRC)
    • Charpy Impact Min. ft-lbs: 20 ft-lbs.

    Duplex 2205 Stocking Dimensions

    • Bar: 0.5 – 6.5 in
    • Bored Bar with bespoke internal diameters via vSM’s in-house deep hole drilling and honing capabilities

     

    Duplex 2205 Chemical composition (Wt %)

     

    Carbon
    (C)
    Manganese
    (Mn)
    Phosphorus
    (P)
    Sulfur
    (S)
    Silicon
    (Si)
    Nickel
    (Ni)
    Cobalt
    (Co)
    0.03 Max 2.0 Max 0.03 Max 0.02 Max 1.0 Max 4.5-6.5

     

    Chromium
    (Cr)
    Molybdenum
    (Mo)
    Niobium + Tantalum
    (Nb (Cb) + Ta)
    Titanium
    (Ti)
    Copper
    (Cu)
    Aluminum
    (Al)
    Iron (Fe) & Others
    21.0-23.0 3.0-3.5 Fe– Balance, Nitrogen– 0.14– 0.2

     

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