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    Austenitic Stainless Steel


    Austenitic Stainless Steel is one of the most widely used stainless steel categories known for its excellent corrosion resistance, high strength, durability, and superior formability. These grades contain high levels of chromium and nickel, making them ideal for applications in chemical processing, food processing, marine, construction, oil & gas, and industrial equipment. Austenitic stainless steels such as ASTM 304, 304L, 316, 316L, 310S, and 317L offer outstanding weldability, heat resistance, and non-magnetic properties, making them suitable for both high-temperature and corrosive environments.


    Standrads and Checmical Compositions
    ASTM 201 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Molybdenum (Mo)

    0.15%

    1.00%

    3.5–5.5%

    5.50–7.50%

    0.060%

    0%

    0.030%

    16.0–18.0%

    0%

    0.25%

    0%

    0%
    ASTM 202 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Molybdenum (Mo)

    ≤ 0.15%

    ≤ 1%

    4-6%

    7.50-10%

    ≤ 0.060%

    68%

    ≤ 0.030%

    17-19%

    0%

    ≤ 0.25%

    0%

    0%
    ASTM 301 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Molybdenum (Mo)

    ≤ 0.15%

    ≤ 1%

    6-8%

    ≤ 2%

    ≤ 0.045%

    0%

    ≤ 0.030%

    16-18%

    0%

    ≤ 0.10%

    0%

    0%
    ASTM 303 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.10%

    ≤ 1%

    8-10%

    ≤ 2%

    ≤ 0.045%

    Balance

    0.015-0.35%

    17-19%

    0%

    ≤ 0.10%

    0%
    ASTM 304 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.07%

    ≤ 1%

    8-10.5%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.015%

    17.5-19.5%

    0%

    ≤ 0.10%

    0%

    0%
    ASTM 304L Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.03%

    ≤ 1%

    8-10.5%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.015%

    17-19.5%

    0%

    ≤ 0.10%

    0%

    0%
    ASTM 304N Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.08%

    ≤ 1%

    8-11%

    ≤ 2%

    ≤ 0.045%

    0%

    ≤ 0.030%

    18-20%

    0%

    0.10-0.16%

    0%

    0%
    ASTM XM21 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.08%

    ≤ 1%

    8-10%

    ≤ 2%

    ≤ 0.045%

    0%

    ≤ 0.030%

    18-20%

    0%

    0.16-0.30%

    0%

    0%
    ASTM 304LN Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.03%

    ≤ 1%

    8-12%

    ≤ 2%

    ≤ 0.045%

    Remainder

    ≤ 0.030%

    18-20%

    0%

    0.10-0.16%

    0%

    0%
    ASTM 305 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.12%

    ≤ 0.75%

    10.5-13%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.030%

    18-20%

    0%

    0%

    0%

    0%
    ASTM 309S Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.08%

    ≤ 0.75%

    12-15%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.030%

    22-24%

    0%

    0%

    0%

    0%
    ASTM 310S Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Copper (cu)

    ≤ 0.08%

    ≤ 1.5%

    19-22%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.030%

    24-26%

    0%

    0%

    0%

    0%
    ASTM 316 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Molybdenum (Mo)

    ≤ 0.08%

    ≤ 0.75%

    10-14%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.030%

    16-18%

    0%

    ≤ 0.10%

    0%

    2-3%
    ASTM 316N Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Molybdenum (Mo)

    0.08-0.03%

    ≤ 1%

    10-14%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.030%

    16-18%

    0%

    ≤ 0.10%

    0%

    2-3%
    ASTM 316LN Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Molybdenum (Mo)

    0.03%

    ≤ 1%

    10-14%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.030%

    16-18%

    0%

    0.10-0.30%

    0%

    2-3%
    ASTM 317L Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Molybdenum (Mo)

    0.03%

    ≤ 0.75%

    11-15%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.030%

    18-20%

    0%

    ≤ 0.10%

    0%

    3-4%
    ASTM 317 Stainless Steel

    Carbon (C)

    Silicon (Si)

    Nickel (Ni)

    Manganese (Mn)

    Phosphorus (P)

    Iron (Fe)

    Sulphur (S)

    Chromium (Cr)

    Titanium (Ti)

    Nitrogen (N)

    Niobium (Nb)

    Molybdenum (Mo)

    0.03%

    ≤ 0.75%

    11-15%

    ≤ 2%

    ≤ 0.045%

    Balance

    ≤ 0.030%

    18-20%

    0%

    ≤ 0.10%

    0%

    0%