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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.
With a complete sales network, reasonable sales price and high-quality after-sales service, we are dedicated to providing high-quality PTFE Stainless Steel 304, 321, 316 Hose Pipe, Flat PTFE Tubing with High Quality in China& and services for our customers. Those who do are always accomplished, those who walk are always arriving. In the new year, we must always adhere to the general work principle of seeking progress while maintaining stability, insist that the word "stable" is at the forefront, the word "early" is at the forefront, and the word "real" is the key, continue to focus on the theme of high-quality development, and further highlight core capabilities. Our business ideas: people-oriented, management first, vigorously expand the market and research and development wings to contribute to the society.
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