ASTM A240 304L (UNS S30403) Stainless Steel Sheet
Top 304L Stainless Steel Sheet Manufacturer in China
ASTM A240 304L (UNS S30403) is the premier choice for applications requiring exceptional weldability and corrosion resistance. As the low-carbon variant of the industry-standard 304 grade, its reduced carbon content minimizes harmful carbide precipitation during welding, ensuring maximum structural integrity at weld points. This austenitic stainless steel offers a versatile, cost-effective, and highly reliable solution for a vast range of industrial, architectural, and commercial projects, delivering both outstanding performance and a clean, aesthetic finish that stands the test of time.
Discover high-quality 304L stainless sheet products here.
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Characteristics of 304L Stainless Steel
- Superior Weldability: The low carbon content prevents carbide precipitation, making it ideal for heavy-gauge welded components.
- Enhanced Corrosion Resistance: Offers excellent resistance to intergranular corrosion, especially after welding or stress relieving processes.
- Excellent Formability: This material can be easily deep drawn, stamped, bent, and fabricated without cracking.
- High-Temperature Service: Exhibits good oxidation resistance in intermittent service up to 870°C and continuous service to 925°C.
- Hygienic & Non-Reactive Surface: Its smooth, non-porous surface is easy to clean, making it perfect for sanitary applications.
- Balanced Strength & Ductility: Provides a fantastic combination of tensile strength, ductility, and toughness for structural applications.
- Cost-Effective Lifecycle: A durable, low-maintenance material that offers an outstanding long-term return on investment.
- Aesthetic & Modern Appeal: Delivers a clean, bright, and professional finish suitable for architectural and decorative uses.
ASTM 240 (UNS S30403) Stainless Steel Technical Specifications
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.03 max |
| Chromium (Cr) | 18.0 - 20.0 |
| Nickel (Ni) | 8.0 - 12.0 |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 0.75 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Property | Metric |
|---|---|
| Tensile Strength | 515 MPa min |
| Yield Strength (0.2%) | 205 MPa min |
| Elongation in 2",40% min" | |
| Hardness, Rockwell B | 92 max |
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1400-1450 °C |
| Modulus of Elasticity | 193 GPa |
| Thermal Conductivity | 16.2 W/m-K at 100°C |
- ASTM: 240 Type 304L
- UNS: S30403
- EN / DIN: 1.4307, 1.4301
- JIS: SUS 304L
- BS: 304S11
- AFNOR: Z3CN18-10
Common Applications of 304L Stainless Steel
Chemical Storage & Equipment
Food & Beverage Industry
Architectural Paneling & Trim
Water Treatment & Plumbing
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304L Stainless Steel Sheet Customization
Beyond standard stock, we provide comprehensive processing services to deliver products that meet your exact project requirements.
- Custom Dimensions: We offer cut-to-size and shearing services to match your specific length and width needs.
- Thickness Range: Sheets are available in a wide variety of thicknesses to suit both light and heavy-duty applications.
- Surface Finishing: Choose from multiple finishes, including standard 2B, bright annealed (BA), No.4 brushed, and No.8 mirror.
- Processing Services: We offer value-added fabrication including bending, welding, decoiling, punching, and precision cutting.
Contact our technical team to discuss your custom fabrication needs.
Contact Us
Your project’s success hinges on superior materials. We supply certified ASTM 304L stainless steel sheets that meet rigorous industry standards, ensuring absolute confidence in your application’s performance and longevity. As your dedicated partner, we utilize our vast inventory and advanced processing services to meet your exact specifications, from standard stock to fully customized components. We deliver not just a product, but a promise of unwavering quality and reliability for your most demanding projects.
Ready to begin? Contact our expert team for a detailed, no-obligation quote and professional material consultation. We are here to discuss your technical requirements and provide a tailored solution with competitive pricing and on-time delivery. Let us simplify your procurement process and help bring your project to life with the support it deserves. Send your inquiry now to secure the premium materials you need.
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