- Excellent resistance to pitting and crevice corrosion
- High resistance to chloride stress corrosion cracking
- Superior mechanical strength compared to austenitic stainless steels
- Good weldability and fabrication performance
- Suitable for aggressive chemical and marine environments
- Strong durability in high-pressure applications
329J4L UNS S31260 1.4481 Duplex Stainless Steel
329J4L stainless steel is a duplex stainless steel grade known for its excellent corrosion resistance, high mechanical strength, and superior resistance to chloride stress corrosion cracking. This alloy combines ferritic and austenitic microstructures, offering improved performance compared to conventional stainless steels.
329J4L stainless steel is widely used in harsh industrial environments where corrosion resistance and long service life are essential.
Key Features of 329J4L Stainless Steel
- Excellent resistance to pitting and crevice corrosion
- High resistance to chloride stress corrosion cracking
- Superior mechanical strength compared to austenitic stainless steels
- Good weldability and fabrication performance
- Suitable for aggressive chemical and marine environments
- Strong durability in high-pressure applications
329J4L Chemical Composition
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 5.0 – 8.0 |
| Molybdenum (Mo) | 1.0 – 2.5 |
| Carbon (C) | Max 0.03 |
| Nitrogen (N) | 0.10 – 0.25 |
| Manganese (Mn) | Max 2.0 |
| Silicon (Si) | Max 1.0 |
| Iron (Fe) | Balance |
329J4L Mechanical Properties
| Property | Value |
| Tensile Strength | ≥ 620 MPa |
| Yield Strength | ≥ 450 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 290 HB |
Applications of 329J4L Stainless Steel
329J4L is commonly used in industries that require superior corrosion resistance and strength:
- Chemical processing equipment
- Marine engineering
- Offshore oil and gas platforms
- Heat exchangers
- Pressure vessels
- Desalination plants
- Pulp and paper processing
- Water treatment systems
- Industrial piping systems
Why Choose 329J4L Stainless Steel?
329J4L duplex stainless steel offers a balance of corrosion resistance and high strength, making it suitable for demanding environments. Its duplex structure provides improved resistance to stress corrosion cracking while maintaining excellent toughness.
Compared with standard stainless steel grades, 329J4L performs better in chloride-rich and corrosive environments.
329J4L Supplier & Manufacturer
We provide premium-quality 329J4L stainless steel products for industrial and engineering applications worldwide. Available in custom sizes, finishes, and specifications to meet project requirements.
Contact us for pricing, technical data sheets, and bulk order inquiries
