321 Stainless Steel Plates Manufacturer in China
Normally, 321 stainless steel plate is reimforced with titanium, which belongs to the austenitic stainless steel. Unlike other types of stainless steel, the 321 grade can be hardened through cold working instead of heat treatment. At Tuolian, we employ professional and standardized shop fabrication practices to weld and process 321 stainless steel sheets, ensuring that this type of plate is suitable for various applications. Additionally, we offer full-size and custom-cut length services to meet your specific needs. Simply let us know your requirements, and we will strive to exceed your expectations.
Please find below our detailed specifications for your reference:
Thickness | 0.1mm~100mm |
Width | 10mm~2500mm |
Length | We offer cut-to-length service |
Hardness | Soft, half hard, spring hard, hard, quarter hard, |
Density | 0.289 lb/in3 |
Elastic modulus | 193 gpa |
Other available forms | 321 stainless steel bar, strip, tube, coil, hex bar, and round bar |
Certification | AMS 5510, ASTM A 276, AMS 5645, ASTM A240, ASME SA 240, SA 666, UNS S32100, UNS S32109, ASTM A 167, ASTM A 479, ASME SA 167, |
Surface finish | mirror, 2D, 1D, satin, 2B, hairline, 2D, BA NO (8), cold rolled sheet (CR), hot rolled plate (HR), No.1 finish hot rolled, No.4, BA, 8K, brush, etc. |
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By Surface Finish






Features of 321 Stainless Steel Plate
321 stainless steel plates exhibit excellent forming and welding characteristics. These sheets also possess higher creep and stress rupture properties compared to Alloy 304, enabling them to be used continuously at elevated temperatures up to 900°C. Additionally, our 321 stainless steel plates have high strength, resistance to cracking, scaling, and subsequent aqueous corrosion. And 321 stainless steel plates are often in the state of phase stability.


321 Stainless Steel Applications
321 stainless steel sheets are commonly used in applications involving welding or sustained elevated temperature operations. These include aircraft exhaust manifolds, heat exchangers, furnace parts, expansion joints, heating element tubing, and more. Moreover, this grade of stainless steel sheet finds utility in the chemical and food processing industries, specifically in equipment and storage. It is also well-suited for use in petroleum refining, the chemical industry, waste treatment processes, and other relevant applications.
TuoLian – Your Professional 321 Stainless Steel Plates Manufacturer in China


To ensure the delivery of high-quality products, our 321 stainless steel sheets undergo a strict and professional production process. This process includes plasma cutting, plate saw cutting, shearing, laser cutting, waterjet cutting, forming, welding, machining, and plate leveling.