321 Stainless Steel Plate

SKU: HC-1127886858641829888

321 stainless steel is an austenitic stainless steel that has 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

Contact Us

Scan to chatWhatsApp QR Code

Product Description

321 stainless steel is an austenitic stainless steel that has excellent corrosion resistance at room temperature, as well as good high-temperature strength and creep resistance. 321 stainless steel has better crack resistance during the welding process due to the titanium content. In addition, 321 stainless steel also has good processing and welding properties, making it easy to perform cutting, bending, welding and other processing operations. Its mechanical properties such as tensile strength, flexural strength and elongation are also excellent, and can meet the requirements of use in various complex environments. Because 321 stainless steel have excellent corrosion resistance and high temperature performance, they are widely used in petroleum, chemical industry, aviation, aerospace and other fields. In the petroleum and chemical industries, since the production process involves a large amount of corrosive media such as acids, alkalis, and salts, 321 stainless steel can effectively resist the corrosion of these media and ensure the long-term stable operation of the equipment. In the aviation and aerospace fields, 321 stainless steel has 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 Plate
TypePlate
Thickness0.3mm-200mm
Length2000mm,2438mm,3000mm,5800mm,6000mm,12000mm,etc.
Width40mm-600mm,1000mm,1219mm,1500mm,1800mm,2000mm,2500mm,3000mm,3500mm,etc.
StandardASTM,AISI,JIS,GB,DIN,EN,etc.
SurfaceBA,2B,NO.1,NO.4,4K,HL,8K,etc.
Scope of ApplicationWidely used in high temperature and electrical industry,medical equipment construction,chemical,food industry,agriculture and ship parts,food and beverage packaging,Kitchen supplies,trains,airplanes,conveyor belts,vehicles,bolts,nuts,springs and screens,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
© 2026 HongChen Metal. All rights reserved.Powered by HongChen-CMS
+86 15052357278
juniper@hongchen-steel.com
+86 15052357278