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High Quality 321 Stainless Steel Bar

321 stainless steel is an austenitic stainless steel known for its outstanding corrosion resistance at room temperature, along with impressive high-temperature strength and creep resistance.


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    321 Stainless Steel Bar Description

    321 stainless steel bars are renowned for their exceptional processing and welding properties, facilitating cutting, bending, welding, and other processing operations. These bars also exhibit excellent mechanical properties, including impressive tensile strength, flexural strength, and elongation, meeting the requirements for use in diverse and complex environments. With outstanding corrosion resistance and high-temperature performance, 321 stainless steel bars are widely employed as manufacturing parts in the petroleum, chemical industry, aviation, and aerospace. They effectively resist corrosive media such as acids, alkalis, and salts, ensuring the long-term stable operation of equipment in the petroleum and chemical industries. In the aviation and aerospace fields, 321 stainless steel bars have emerged as crucial structural materials due to their ability to withstand high operating temperatures and the demand for materials with good creep resistance.

    Product Parameters

    Product Name High Quality 321 Stainless Steel Bar
    Type Steel Bar
    Outer Diameter Round Bar 4mm-500mm
    Hexagon Bar 18mm-57mm (11/16″ to 2-3/4″)
    Square Bar 18mm-47mm (11/16″ to 1-3/4″)
    Flat Steel 1/2 "to 10", Thickness: 2mm-150mm, Can provide customized
    Length 1-6 meters, Length can be customized
    Standard ASTM, AISI, JIS, GB, DIN, EN, etc.
    Surface Black, Bright Polished, Rough Turning, Mattness Surface Treatment, No. 4. BA, etc.
    Scope of Application Stainless steel bars find applications across a wide range of industries, including shipbuilding, defense, automotive, textiles, paper and pulp, manufacturing, cement, heavy earthmoving equipment, and construction.

    Chemical Composition

    C Si Mn Cr Ni S P
    ≤ 0.08 ≤ 0.75 ≤ 2.0 17.0~19.0 9.0~12.0 ≤ 0.03 ≤ 0.045

    Mechanical Properties

    Tensile Strength Kb (MPa) Yield Strength σ0.2 (MPa) Elongation D5 (%) Hardness
    ≥520 ≥205 ≥ 40 ≤ 187HB;≤ 90HRB;≤ 200HV

    Physical Performance

    Density(g/cm³) Modulus of Elasticity(Gpa) Coefficient of Thermal Expansion(10-6/°C) Coefficient of Thermal Conductivity(W/m*K) Resistivity(ΜΩ. cm)
    7.92 193 16.6 16.0 72
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