Product Description
The ASTM A312 321 Stainless Steel Pipe is a high-quality, corrosion-resistant pipe made from a titanium-stabilized alloy. This stainless steel pipe offers excellent resistance to oxidation and corrosion, especially at high temperatures. It is ideal for applications in industries that require a material that can withstand elevated temperatures and prevent carbide precipitation. With superior resistance to intergranular corrosion, this pipe is well-suited for applications such as heat exchangers, aircraft, and high-temperature process equipment.
Unique Features
The ASTM A312 321 Stainless Steel Pipe is specifically alloyed with titanium, which stabilizes the steel and prevents carbide precipitation during welding or high-temperature exposure. This unique feature enhances its resistance to intergranular corrosion and makes it suitable for use in environments where the material is exposed to cyclic heating and cooling. Additionally, it retains its strength and durability even in the presence of aggressive chemicals, making it a versatile material for high-stress applications, including aerospace and power generation industries.
Technical Specifications
| Parameter | Value |
|---|---|
| Material Grade | 321 Stainless Steel |
| Standard | ASTM A312 |
| Pipe Type | Seamless and Welded |
| Outside Diameter (OD) | 1/8″ (3.17 mm) to 24″ (609.6 mm) |
| Wall Thickness | Schedule 5S to Schedule 160, depending on the size |
| Length | Standard lengths: 20ft (6.1m), Custom lengths available |
| Tensile Strength | 505 MPa (73,000 psi) |
| Yield Strength | 205 MPa (30,000 psi) |
| Elongation | 40% minimum (for thickness โค 0.250โ) |
| Chemical Composition | 0.08% Max Carbon, 1.00% Max Manganese, 0.75% Silicon, 0.045% Phosphorus, 0.03% Sulfur, 17-19% Chromium, 9-12% Nickel, 0.20% Max Titanium, 0.10% Max Nitrogen |
| Surface Finish | Pickled or Polished |
Applications
- Aerospace: Used in aircraft components due to its high temperature stability and resistance to oxidation.
- Heat Exchangers: Ideal for high-temperature process equipment and heat exchangers in petrochemical industries.
- Chemical Processing: With resistance to acids and alkalis, it is widely used in the production of corrosive chemicals.
Packaging and Shipping
At Yuanchi, we prioritize the safe packaging of ASTM A312 321 Stainless Steel Pipes to ensure they arrive in pristine condition. Our pipes are packed in sturdy wooden crates or bundles, carefully wrapped in waterproof materials to prevent any damage during transit. We collaborate with reliable logistics companies to offer both sea and air shipping options, ensuring timely delivery to meet our clientsโ project deadlines worldwide.
FAQ
- What makes ASTM A312 321 stainless steel different from other stainless steel grades?
- The key difference is the addition of titanium, which stabilizes the steel and prevents carbide precipitation during welding and high-temperature exposure, making it ideal for applications in high-heat environments.
- What is the maximum temperature the ASTM A312 321 pipe can handle?
- ASTM A312 321 stainless steel can withstand temperatures up to 900ยฐC (1650ยฐF) for intermittent use and up to 925ยฐC (1700ยฐF) for continuous exposure.
- Can ASTM A312 321 stainless steel pipe be used in food processing applications?
- Although it is not as commonly used as 304 or 316 stainless steel for food-grade applications, its corrosion resistance makes it suitable for specific food processing environments, particularly in high-temperature conditions.
- How does ASTM A312 321 stainless steel perform in weldability?
- ASTM A312 321 stainless steel has excellent weldability, especially in high-temperature applications, thanks to its titanium stabilization, which minimizes carbide precipitation during welding.
- What industries benefit most from ASTM A312 321 stainless steel pipes?
- Industries that require high-temperature resistance, such as aerospace, chemical processing, and power generation, benefit significantly from the properties of ASTM A312 321 stainless steel.
- Are the ASTM A312 321 stainless steel pipes available in custom sizes?
- Yes, we offer customized sizes and lengths based on client specifications to meet particular application requirements. Please contact us to discuss your needs.
