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321 Stainless Seamless Steel Exhaust Tubing
Material
| Material Type | Stainless Steel |
| Material Grade | 321 |
| Material Form | Seamless Tubing |
Specification
| Outer Diameter (OD) | 1/4" - 4" (6.35mm - 101.6mm) |
| Wall Thickness | 0.020" - 0.250" (0.51mm - 6.35mm) |
| Length | Customizable |
| Surface Finish | Pickled, Polished, Annealed |
Key Features
- High corrosion resistance
- Excellent high-temperature performance
- Superior weldability
- Good formability
- Resistant to intergranular corrosion
- Suitable for exhaust systems
Chemical Composition
| Element | Composition (%) |
| Chromium (Cr) | 17.0 - 19.0 |
| Nickel (Ni) | 9.0 - 12.0 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 0.75 |
| Carbon (C) | ≤ 0.08 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
| Titanium (Ti) | 5xC min, 0.70x (C + N) max |
Mechanical Properties
| Property | Value |
| Tensile Strength | 75 ksi (515 MPa) min |
| Yield Strength (0.2%) | 30 ksi (205 MPa) min |
| Elongation | 40% min |
| Hardness (Brinell) | 217 max (HB) |
| Impact Strength | -320°F (-196°C) |
Steel Grade
- AISI 321
- UNS S32100
EN 1.4541
Application
321 Stainless Seamless Steel Exhaust Tubing finds wide application in various industries, including:
- Automotive exhaust systems
- Aircraft exhaust manifolds
- High-temperature chemical processes
- Heat exchangers
- Furnace components
Oil and gas industry
Possible Alternative Grades
- 304 Stainless Steel: Offers good corrosion resistance but lower high-temperature performance.
- 316 Stainless Steel: Provides better corrosion resistance but may not be as cost-effective.
- 309 Stainless Steel: Known for high-temperature strength, but not as corrosion-resistant as 321.
- Inconel 625: Offers exceptional high-temperature and corrosion resistance, but at a higher cost.
Through continuous innovation, we have completed the development layout in the field of manufacturing the Stainless Steel Pipe Thickness 0.3-2mm 321 316L 304 310S Steam Steel Tubing. Our factory insists on the principle of 'Quality First, Sustainable Development', and takes 'Honest Business, Mutual Benefits' as our developable goal. We have a high-quality R & D team, and constantly produce high-quality innovative products.
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