321 Stainless Steel Pipe

SKU: HC-1131271049207181312

321 stainless steel is an austenitic stainless steel that has excellent corrosion resistance at room temperature, aside from 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 that has excellent corrosion resistance at room temperature, aside from high-temperature strength and creep resistance. 321 stainless steel pipe has good processing and welding properties, making cutting, bending, welding and other processing operations easy to perform. Besides, it has superior mechanical properties such as tensile strength, flexural strength and elongation, and can meet the requirements of use in various environments. Because 321 stainless steel pipes have excellent corrosion resistance and high temperature performance, they are commonly seen in petroleum, chemical industry, aviation, aerospace. Since the production process of petroleum and chemical industries involves a large amount of corrosive media such as acids, alkalis, and salts, 321 stainless steel pipes can effectively cope with the corrosion of these media and ensure the stable operation of the equipment. 321 stainless steel pipe has become one of the important structural materials in the aviation and aerospace fields.

Product Parameters

Product Name321 Stainless Steel Pipe
TypeSteel Pipe
Outer diameterRound Tube4mm-200mm
Square Tube10*10mm-100*100mm
Rectangular Tube10*20mm-50*100mm
Wall Thickness0.6mm-6.0mm
Length1-6 meters,Length can be customized
StandardASTM,AISI,JIS,GB,DIN,EN,etc.
SurfaceBlack,Bright Polished,Rough Turning,Matt Surface Treatment,No.4. BA,etc.
Scope of ApplicationCommon applications for stainless steel pipes include food processing,Textile operations,Breweries,Water treatment plants,Oil and gas processing,Fertilizers and pesticides,Chemical applications,Construction,Pharmaceuticals,Auto parts,etc.
CertificateISO,SGS,BV,etc.
Production TechnologyHot Rolling,Cold Rolling
Edge ProcessingEdging,Trimming

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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