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Nestled in Houston, USA, we take pride in being a top-notch manufacturer and supplier of stainless steel sheets, plates, and specialty products, including our premium Stainless Steel 347 Foils. These foils are niobium-stabilized, which means they offer fantastic resistance to intergranular corrosion, particularly in welded joints and high-temperature settings. Crafted to meet ASTM and global standards, our foils are known for their exceptional durability, formability, and corrosion resistance. We cater to various industries like aerospace, chemical processing, and power generation, providing precision-engineered stainless steel foils that are built to perform reliably in demanding applications.
Stainless Steel 347 is an austenitic stainless steel alloy that typically contains around 17–20% chromium, 9–13% nickel, and niobium (columbium) to stabilize the structure. This unique blend helps prevent carbide precipitation, boosting resistance to intergranular corrosion during welding. With a tensile strength of about 515 MPa and a yield strength close to 205 MPa, this alloy excels in oxidation resistance, toughness, and mechanical stability at high temperatures. Plus, it boasts great weldability and formability, making it perfect for those tough, high-temperature, and corrosive environments.
| Item | Stainless Steel 347 foil(Hot rolled, cold rolled) | |
| Thickness | 0.025 to 3 mm and as per Customer Requirement | |
| Width | 3 mm to 2000 mm and as per Customer Requirement | |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc | |
| Standard | JIS, AISI, ASTM, GB, DIN, EN, etc | |
| Surface | the surface and finish of stainless steel 347 foil: 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Grade | C | Mn | Si | P | S | Cr | Ni | N |
| SS 347 | 0.15 max | 5.5 – 7.5 | 100 max | 0.06 max | 0.03 max | 16.00-18.00 | 0.3 – 0.5 | – |
| Properties | Metric | Imperial |
| Tensile strength (transverse at room temperature) | 685 MPa | 99400 psi |
| Tensile strength (longitudinal at room temperature) | 696 MPa | 101000 psi |
| Yield strength (transverse at room temperature) | 292 MPa | 42400 psi |
| Yield strength (longitudinal at room temperature) | 301 MPa | 43700 psi |
| Compressive yield strength | 365 MPa | 52900 psi |
| Elastic modulus | 197 GPa | 28573 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (longitudinal at room temperature) | 56% | 56% |
| Elongation at break (transverse at room temperature) | 62.50% | 62.50% |
| Hardness, Rockwell B (transverse at room temperature) | 85 | 85 |
| Hardness, Rockwell B (longitudinal at room temperature) | 85 | 85 |
DIN 1.4550 Foils offer several advantages, particularly in high-temperature and corrosive environments. The addition of niobium stabilizes the material, preventing carbide precipitation and ensuring excellent resistance to intergranular corrosion, especially in welded structures. It also provides outstanding oxidation and thermal stability, making it ideal for applications exposed to elevated temperatures. The material’s exceptional strength, durability, and weldability make it versatile for a wide range of industrial applications. Stainless Steel 347 Foils are widely used in the aerospace, chemical, and power generation industries, offering reliable performance and long-lasting resistance under harsh conditions.
| STANDARD | UNS | JIS | WERKSTOFF NR. |
| SS 347 | S34700 | SUS 347 | 1.4550 |
Stainless Steel 347 Foils are extensively utilized in high-temperature and corrosive settings, such as heat exchangers, boilers, and exhaust systems. Their stability and resistance to intergranular corrosion make them ideal for applications in chemical processing, power generation, and aerospace. You’ll also find these foils in furnace parts, superheater tubes, and catalytic converters, where thermal cycling is a factor. Additionally, 347 foils are popular in architectural and industrial projects that demand outstanding strength, weldability, and corrosion resistance. Their durability and formability ensure they deliver reliable performance, even in the harshest conditions.
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Houston, TX 77041
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