We offer a wide range of stainless steel pipes, including the 321 Stainless Steel Pipe, Stainless Steel 321 Pipe, and SS 321 Pipe. Our pipes are made from high-quality AISI 321 stainless steel and comply with ASTM A312 TP321 standards. They are also in accordance with ASME SA312 UNS S32100 specifications.
Our Stainless Steel SUS 321 Pipe is manufactured using DIN 1.4541 stainless steel, ensuring durability and corrosion resistance. We provide both seamless and welded options with our SS 321 Seamless Pipe and 321 Stainless Steel Welded Pipe.
For different requirements, we offer SS 321 ERW Pipe, 321 Stainless Steel Exhaust Pipe, SS 321 SCH 10 Pipe, and SS 321 SCH 40 Pipe. We also have SS 321 Square Pipe and 321 Stainless Steel Round Pipe available.
As for pricing, our 321 Stainless Steel Pipe comes at a competitive price and we have a wide range of options to choose from. Our pipes are manufactured by reliable and reputable manufacturers in the industry.
If you are looking for high-quality stainless steel pipes, we are one of the leading manufacturers in the market. Feel free to contact us for more information or to place an order.
Stainless steel 321 pipe is a type of austenitic stainless steel that is fortified with titanium to enhance its stability and resistance to intergranular corrosion at elevated temperatures. It boasts remarkable strength, anti-fouling properties, and phase stability, making it a superior option to other comparable grades. This pipe contains a chemical composition including titanium, which enables it to remain stable in high-temperature conditions. Its essential constituents include Carbon (C) with a maximum value of 0.08, Silicon (Si) ≤1.00, Manganese (Mn) ≤2.00, Phosphorus (P) ≤0.045, Sulfur (S) ≤0.030, Vanadium (V) with a range of 5C~0.70, titanium (Ti) with a range of 5C~0.70, nickel (Ni) of 9.00~13.00 and chromium (Cr) of 17.00~20.00.
AISI 321 stainless steel pipe is highly resistant to corrosion and can withstand temperatures of up to 800°C. It also boasts exceptional mechanical properties, high heat-resistant strength, and tensile resistance. This pipe is an excellent option for a wide range of applications, including use in chemical and petroleum processing industries, combustion chambers, and high-temperature exhaust systems. Its durability and reliability make it an ideal choice for environments where resistance to corrosion and high heat is crucial. The quality and strength of Stainless steel 321 pipe make it one of the best options for industries that require robust, long-lasting materials.
- The ASTM A269 is a standard specification that defines the requirements for seamless and welded austenitic stainless steel tubing. This tubing is designed to be used for general service purposes and provides excellent corrosion resistance in various environments.
The ASTM A269 standard specifies the dimensions, mechanical properties, and chemical composition of the tubing. It also specifies the methods of manufacturing, testing, and inspection that must be used to ensure that the tubing meets the required standards.
This type of tubing is commonly used in applications such as chemical processing, food and beverage production, medical equipment, and oil and gas production. It is available in a variety of sizes and wall thicknesses to suit different application requirements.
In conclusion, the ASTM A269 is a widely recognized standard for seamless and welded austenitic stainless steel tubing used in a variety of industries and applications. Its specifications ensure that the tubing meets the required standards for dimensional accuracy, chemical composition, and mechanical properties, making it a reliable choice for general service purposes.
- The ASTM A213 is a standard specification for seamless tubes made of ferritic and austenitic alloy steel. These tubes are primarily used in boilers, superheaters, and heat-exchangers. The specification lays down the requirements for the chemical composition, mechanical properties, and other important features of these tubes. It ensures that all the tubes manufactured under this specification meet the quality standards required for their intended use. This standard is considered essential in the manufacture of high-quality tubes for various industrial applications, including power plants, chemical plants, and oil refineries, among others.
- The ASTM A312 is a widely recognized standard for seamless, welded, and heavily cold worked austenitic stainless steel pipes. This specification provides clear guidelines for the manufacturing and testing of these pipes, ensuring that they meet the necessary quality and performance standards.
Whether the stainless steel pipes are seamless or welded, the ASTM A312 outlines the essential requirements that must be met in terms of chemical composition, mechanical properties, and overall performance. Additionally, the standard also covers the various types of austenitic stainless steel that can be used for these pipes.
One critical feature of the ASTM A312 specification is the emphasis on heavy cold working. This process involves performing significant deformation on the steel material at low temperatures, which leads to increased strength and durability. As a result, these heavily cold-worked pipes can withstand harsh operating conditions and extreme temperatures, making them ideal for applications in various industries.
Overall, the ASTM A312 is a vital document for the manufacture and use of austenitic stainless steel pipes. Its guidelines ensure that these pipes are suitable for their intended purposes and that they meet the necessary quality and performance requirements.
The ASTM A312 TP321 is a specification for stainless steel pipes with specific requirements. These pipes are crafted to meet the needs of industries that require corrosion-resistant, heat-resistant, and high-strength pipes.
The specifications for these pipes include a range of sizes, wall thicknesses, finishes, and end types. They are made from high-quality stainless steel that is carefully selected to meet the required standards.
The ASTM A312 TP321 stainless steel pipe is designed to withstand high temperatures and extreme pressure. It is commonly used in applications such as chemical processing, food and beverage processing, oil and gas, and pharmaceuticals.
These pipes are also tested for quality and durability to ensure that they meet the required standards of strength and reliability. The testing process includes checking for defects, leaks, and other issues that may compromise the integrity of the pipe.
In conclusion, the ASTM A312 TP321 stainless steel pipe is a highly specialized product that meets the demanding needs of a range of industries. Its durability, corrosion resistance, and high strength make it an excellent choice for a variety of applications where high-performance pipes are required.
| Pipe Specifications | ASTM A312 / ASME SA 312 ASTM A213 / ASME SA 213 ASTM A269 / ASME SA 269 |
| Pipe Standard | DIN, JIS, ASTM, EN, GB, AISI, ASME |
| Pipe Thickness | 0.3mm - 50 mm |
| Welded Pipe size | 5.0 mm - 1219.2 mm |
| Seamless Pipe Outer Diameter | 6.00 mm OD up to 250 mm OD, Sizes up to 12” NB |
| Pipe Schedule | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS. Rearranging the content: SCH XS, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS.The mentioned Sch schedules refer to different wall thicknesses for pipes. SCH 5 has the thinnest wall, followed by SCH XS. Then comes SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, and SCH XXS with increasing wall thickness. Each SCH schedule is designed for specific pressure and temperature requirements in various applications. |
| Length | 6m, 12m, Cut Length |
| Form | Square Pipes, Rectangular Pipes, Custom Pipes, Round Pipes, and Hydraulic Pipes are the variety of pipes available. These pipes come in different shapes and sizes to cater to various industrial and construction needs. Round pipes are cylindrical in shape and are commonly used in plumbing and transportation of gases and liquids. Square pipes have a square cross-section and find applications in structures, furniture, and architectural designs. Rectangular pipes have a rectangular cross-section and are often used in construction, fabrication, and engineering projects. Hydraulic pipes are specifically designed to withstand high-pressure applications, making them suitable for hydraulic systems. Lastly, custom pipes can be manufactured according to specific requirements and dimensions, offering flexibility and precision in various industries. |
| Pipe & Tube Type | Seamless / ERW/ EFW / Welded / Fabricated Pipe |
| Pipe & Tube End | Plain End, Beveled End, Treaded Pipe |
Like 304 stainless steel, ASTM A312 TP321 stainless steel pipe is a low-carbon, chromium-nickel alloy with good resistance to intergranular corrosion. 304 stainless steel has good corrosion resistance up to 1562°F (850°C). Whereas stainless steel SUS 321 pipe allows for higher temperature limitations, including long-term exposure to high temperatures up to 1652°F (900°C), due to the addition of titanium used as a stabilizer. 321 stainless steel is superior to 304 stainless steel in high temperature environments, the main advantage is that 321 stainless steel has better resistance to stress fracture. This higher resistance to stress cracking is advantageous in automotive applications where the differences in thermal expansion coefficients (heat-related expansion and contraction occurring at different rates) are greatest. 321 stainless steel tubing is commonly used between the engine and the manifold, din 1.4541 pipes stainless steel is better suited to handle such heat related stresses than 304 stainless steel.
DIN 1.4541 Stainless Steel Pipes Mechanical Properties
| Element | SS 321 |
| Melting Point | 1454 °C (2650 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35% |
| Hardness, Brinell (HB) max | 217 |
| Hardness, Rockwell B (HR B) max | 95 |
Stainless Steel 321 Pipe Physical Properties
| Grade | Density (kg/m) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Application of Stainless Steel 321 Pipe
DIN 1.4541 stainless steel pipes manufactured for high-temperature applications have excellent fatigue and crack resistance making them ideal for the following applications. SS 321 ERW pipe is mainly used in high-temperature equipment, stoves, and other industrial fields. It is also widely used in the chemical industry, oil refining, pharmaceutical and food processing industries. Due to its corrosion resistance and high-temperature performance, SS 321 seamless pipe is also often used in the production of chemical equipment, mining equipment, heat exchangers, exhaust manifolds, high-temperature chemical processing equipment, pipelines, and other industrial facilities.
ASME SA312 UNS S32100 Pipes Quality Assurance
Our 321 stainless steel round pipe is manufactured according to ASTM A269 , ASTM A213, and ASTM A312 specifications to provide a clean, high-quality welding experience due to extensive testing and inspection before shipment. Manufacturer test certificates, heat treatment charts, third-party inspection reports, 100% radiographic inspection reports, and raw material certificates are available upon request. Our ASME SA312 UNS S32100 pipes are an excellent choice for high-performance, light duty, and high-temperature exhaust systems and other automotive applications.
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