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321 Stainless Steel Pipe

321 Stainless Steel Pipe

321 Stainless Steel Pipe, an economical stainless steel ideal for all applications requiring strength and excellent corrosion resistance. 321 Stainless Steel Pipe has a durable matte finish and is widely used in all types of fabrication projects that are exposed to elements such as chemical, acidic, freshwater, and saltwater environments. Contact Us For The 321 Stainless Steel Pipe Price!

321 Stainless Steel Pipe Supplier | Manufacturer | Exporter

Introducing Shanghai Huaxiao Metal – Your Trusted 321 Stainless Steel Pipe Supplier, Manufacturer, and Exporter!

Welcome to our 321 Stainless Steel Pipe product page! We provide you with high-quality 321 stainless steel piping solutions for a variety of industrial and commercial applications. Whether you are looking for a pipe with excellent corrosion resistance or need reliable pipe in a high-temperature environment, our 321 stainless steel pipe can meet your needs.

As a reputed supplier, manufacturer, and exporter, we take pride in offering a wide range of high-quality Stainless Steel products to meet the diverse needs of our clients across the globe.

316 Stainless Steel Seamless Pipe, SS 316 Seamless Pipe


321 Stainless Steel Pipe Specification

Available Sizes

  • Outside Diameter:6.00 mm OD up to 250 mm OD, Sizes up to 12” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
  • Thickness Range:0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
  • Type: Seamless /Welded
  • Form: Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
  • Length: Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded
  • End Protection: Plastic Caps | Outside Finish: 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
  • Delivery Condition: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
  • Inspection, Test Reports: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, third-party inspection Reports, Approved Lab Reports, Destructive Test Reports, Non-Destructive Test Reports
  • Packing: Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per customer requests
  • Specials: Sizes and Specifications other than above can be manufactured on request

Standard Specifications:

  • AMS5557
  • AMS5570
  • MILT8808
  • ASTMA213
  • ASTMA269
  • ASTMA312

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321 Stainless Steel Pipe Data Sheet

General Description:

321 Stainless Steel Pipe, also known as UNS S32100 and Grade 321, principally 17% to 19% Chromium, 12% Nickel, 0.25% to 1% Silicon, up to 2% Manganese, traces of Phosphorus and Sulfur, 5 x (c + n ) .70% titanium, balance iron. In terms of corrosion resistance, 321 is equivalent to Grade 304 in the annealed condition and is superior if the application involves use in the 797°F to 1652°F range. Grade 321 combines high strength, scale resistance, and phase stability with resistance to subsequent aqueous corrosion.

Chemical Composition:

Percentage0.08% max17.0 – 19.0%9.0 – 12.0%2.0% max0.75% max0.045% max0.030% max

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Mechanical Properties:

Tensile StrengthYield Strength (0.2% Offset)ElongationHardness (Rockwell B)
515 – 720 MPa (74,700 – 104,400 psi)205 – 275 MPa (29,700 – 39,900 psi)40% minimum85 max

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Physical Properties:

Physical PropertyValue
Density7.93 g/cm³ (0.286 lb/in³)
Melting Point1398 – 1420°C (2550 – 2590°F)
Specific Heat Capacity0.50 J/g°C (0.12 Btu/lb°F)
Thermal Conductivity16.3 W/m°C (113 Btu-in/h-ft²-°F)
Electrical Resistivity72 µΩ-cm (28.5 µΩ-in) at 20°C (68°F)
Modulus of Elasticity193 GPa (28 x 10^6 psi)
Poisson’s Ratio0.3
Coefficient of Thermal Expansion16.5 µm/m°C (9.2 µin/in°F) at 20-100°C (68-212°F)
Magnetic PropertiesAustenitic stainless steels like 321 are generally non-magnetic in the annealed condition. However, they can become slightly magnetic after cold working or exposure to certain environments.

Corrosion Resistance:

321 stainless steel offers excellent corrosion resistance in various environments, especially in applications involving exposure to mild to moderate concentrations of oxidizing agents. Its resistance to intergranular corrosion after exposure to elevated temperatures makes it a suitable choice for specific applications. Here are some key points:

  • Oxidation Resistance: 321 stainless steel performs well in high-temperature environments due to its chromium and nickel content. It forms a stable oxide layer on the surface that protects against oxidation at elevated temperatures.
  • Intergranular Corrosion Resistance: The addition of titanium to the alloy composition helps prevent the formation of chromium carbides at grain boundaries, making 321 stainless steel resistant to intergranular corrosion after exposure to high temperatures. This property makes it particularly useful in applications where welding or exposure to elevated temperatures might occur.
  • Sensitization: Sensitization is the formation of chromium carbides at grain boundaries, which can reduce the material’s corrosion resistance. 321 stainless steel’s composition minimizes the risk of sensitization, enhancing its performance in corrosive environments.
  • Applications: Due to its corrosion resistance properties, 321 stainless steel is used in industries such as aerospace, chemical processing, automotive, high-temperature processing, oil and gas, food and beverage, and more.
  • Limitations: While 321 stainless steel is suitable for a wide range of environments, it might not be the best choice for highly acidic or chloride-rich environments where more corrosion-resistant stainless steel grades, such as 316 or 904L, might be preferred.

It’s important to consider the specific corrosive environment and application requirements when selecting a stainless steel grade. Always refer to the manufacturer’s datasheets or consult with materials experts to ensure the appropriate material choice for your intended use.

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  • Excellent corrosion resistance: 321 stainless steel has excellent corrosion resistance and is suitable for harsh conditions such as chemical industry and marine environment.
  • High Temperature Stability: This stainless steel tubing is stable in high-temperature environments and is ideal for many high temperature applications.
  • High-quality material: We use high-quality 321 stainless steel material to manufacture, which ensures the durability and long life of the pipe.
  • Various Specifications: Various specifications and sizes are available to meet the needs of different projects.

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  • Chemical industry: 321 stainless steel pipes are excellent in chemical transportation and handling and can resist the effects of corrosive substances.
  • Oil and Gas: Pipeline systems for the oil and gas industry, ensuring stable and reliable energy delivery.
  • High-temperature processing: In high-temperature processing environments, 321 stainless steel pipes can maintain strength and stability, and are suitable for oil refining and chemical industries.

316 Stainless Steel Seamless Pipe, SS 316 Seamless Pipe

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321 Stainless Steel Pipe Stock

321 Stainless Steel Pipe Stock – Extensive and Comprehensive Inventory, Ready for Immediate Orders with Fast Delivery!

At Shanghai Huaxiao Metal, we take pride in maintaining a vast and diverse stock of 321 stainless steel pipes, making us your reliable source for all your stainless steel needs. Our extensive inventory ensures that you can find the perfect solution for your specific requirements, while our commitment to customer satisfaction guarantees a seamless ordering experience.

316 Stainless Steel Seamless Pipe, SS 316 Seamless Pipe


Contact Us For The 321 Stainless Steel Pipe Price!

Why Choose Us As Your 321 Stainless Steel Pipe Supplier?

Rich Experience: We have many years of experience in the stainless steel pipe industry and understand market needs and technological developments.

Quality Assurance: We strictly control the production process and use high-quality materials to ensure the quality of each 321 stainless steel pipe.

Customized Solutions: According to customer needs, we provide customized piping solutions to meet the specific requirements of different projects.

Customer First: Customer satisfaction is our primary goal, we provide timely pre-sales and after-sales services to solve your questions and problems.

Competitive Pricing: We understand the importance of affordability without compromising quality. Our 321 Stainless Steel Pipe is competitively priced to provide excellent value for your investment.

316 Stainless Steel Seamless Pipe, SS 316 Seamless Pipe, 321 Stainless Steel Pipe Suppliers

Partner with Shanghai Huaxiao Metal for all your 321 Stainless Steel Pipe needs and experience the difference top-tier products and unparalleled service can make for your projects. Contact us today to explore our product range or request a quote. Let’s work together to take your stainless steel solutions to new heights!

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