304L Stainless Steel Sheet
Engineered with ultra-low carbon content (≤0.030%) to prevent sensitization, 304L stainless steel sheets (UNS S30403) deliver superior weld zone corrosion resistance (1000+hrs ASTM B117) while maintaining 485MPa tensile strength. They stand as the premier choice for ensuring structural integrity in chemical, marine, and cryogenic environments, building on the reliability of 304 but with enhanced performance in welded areas.
Key Attributes of 304L Stainless Steel Sheet
Weld Zone Excellence
The ultra-low carbon composition prevents sensitization, ensuring the weld zones retain strong corrosion resistance. This eliminates the need for post-weld annealing, streamlining production processes.
01
Reliable Corrosion Resistance
Boasts 1200 hours of salt spray resistance (ASTM B117), outperforming 304 in withstanding corrosive elements, making it suitable for harsh environments.
02
Cryogenic Performance
Excels in extremely low temperatures, with -269°C impact toughness of 75J, far surpassing 304's performance in cryogenic settings.
03
Processing Versatility
Offers excellent welding capabilities, compatible with all processes like TIG, MIG, and Laser, and features good forming flexibility for various manufacturing needs.
04
Sustainable Choice
With 95% recycled content and 30% lower embodied carbon compared to 304, it aligns with eco-friendly practices.
05
Technical Specifications
|
Property |
304L (UNS S30403) |
304 (UNS S30400) |
|
Carbon Content |
≤0.030% |
≤0.080% |
|
Tensile Strength |
485 MPa |
515 MPa |
|
Corrosion Resistance |
1200hrs salt spray |
1000hrs salt spray |
|
Intergranular Test |
Passed ASTM A262 E |
May fail after welding |
|
Weld Zone Hardness |
Hv 220±10 |
Hv 290±20 (risk of cracking) |
|
Cryogenic Toughness |
-269°C Impact 75J |
-196°C Impact 55J |
Processing Advantages
- Welding Superiority
No post-weld annealing required, saving time and costs in production.
Qualified for all welding processes including TIG, MIG, and Laser, ensuring versatility in fabrication.
- Forming Flexibility
Excellent deep-drawing properties with an r-value of 1.0, allowing for complex shapes.
Can be cold-bent at 90° with a bend radius of 0.5t, maintaining structural integrity.
- Sustainable Edge
Made with 95% recycled content, reducing environmental impact.
Has 30% lower embodied carbon compared to 304, contributing to sustainable manufacturing.
Ideal Application Fields
- Chemical Industry
Piping systems and storage tanks benefit from its superior corrosion resistance, especially in welded areas, ensuring safe containment of chemicals.
- Marine Environments
Components exposed to saltwater rely on its enhanced weld zone protection, withstanding the corrosive effects of the marine atmosphere.
- Cryogenic Settings
Equipment used in ultra-low temperature applications, such as liquid gas storage, leverages its excellent cryogenic toughness.
- Food Processing
Welded machinery and storage units maintain hygiene and corrosion resistance, meeting strict industry standards.
304L stainless steel sheets are a top-tier solution for applications demanding strong weld zone performance, corrosion resistance, and versatility in processing. Their unique composition and properties make them indispensable in various industries, providing reliable and sustainable performance in challenging environments.
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