321 Stainless Steel Bar

SKU: HC-1131638676193116160

321 stainless steel is an austenitic stainless steel characterized by excellent corrosion resistance at room temperature, as well as good high-temperature strength and creep resistance.

Testing & Certification

Key Features

  • Third-Party Inspection Support
  • Sufficient Inventory Supply
  • International Standard Certification
  • Custom Processing Service

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Product Description

321 stainless steel is an austenitic stainless steel characterized by excellent corrosion resistance at room temperature, as well as good high-temperature strength and creep resistance. 321 stainless steel bars have superior processing and welding properties, making it easy to perform cutting, bending, welding and other processing operations. Mechanical properties such as tensile strength, flexural strength and elongation are also excellent enough to meet the requirements of use in various complex environments. 321 stainless steel bars have excellent corrosion resistance and high temperature performance, so they are widely used as manufacturing parts in petroleum, chemical industry, aviation, and aerospace. 321 stainless steel bars can effectively resist corrosive media such as acids, alkalis, and salts and ensure the long-term stable operation of the equipment In the petroleum and chemical industries. In the aviation and aerospace fields, 321 stainless steel bars have become one of the important structural materials due to high operating temperatures and the requirement for materials with good creep resistance.

Product Parameters

Product Name321 Stainless Steel Bar
TypeSteel Bar
Outer DiameterRound Bar4mm-500mm
Hexagon Bar18mm-57mm (11/16″ to 2-3/4″)
Square Bar18mm-47mm (11/16″ to 1-3/4″)
Flat Steel1/2 "to 10",Thickness: 2mm-150mm,Can provide customized
Length1-6 meters,Length can be customized
StandardASTM,AISI,JIS,GB,DIN,EN,etc.
SurfaceBlack,Bright Polished,Rough Turning,Mattness Surface Treatment,No.4. BA,etc.
Scope of ApplicationStainless steel bars are used in a variety of industries such as shipbuilding,Defense,Automotive,Textiles,Paper and pulp,Manufacturing,Cement,Heavy earthmoving equipment and construction,etc.

Chemical Composition

CSiMnCrNiSP
≤ 0.08≤ 0.75≤ 2.017.0~19.09.0~12.0≤ 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)
7.9219316.616.072
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