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Boikanyo Sheets and Plates, located in Cape Town, South Africa, has built a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 347 Foils. Known for their commitment to quality and dependability, the company provides products that adhere to international standards, catering to a wide range of industrial needs. Stainless Steel 347 Foils are celebrated for their exceptional resistance to intergranular corrosion, impressive strength, and long-lasting durability. Boikanyo takes pride in producing these foils with meticulous attention to detail, making them ideal for critical applications in industries where resistance to heat, chemicals, and mechanical stress is crucial.
Stainless Steel 347 Foils are stabilized with niobium and contain a balanced mix of chromium (17–19%), nickel (9–13%), carbon, manganese, silicon, sulfur, and phosphorus. The inclusion of niobium significantly boosts resistance to carbide precipitation and intergranular corrosion, especially at high temperatures. These foils showcase remarkable tensile strength (approximately 515 MPa), solid yield strength (205 MPa), and excellent elongation characteristics. Their hardness and toughness remain consistent even in high-heat conditions, while their oxidation resistance contributes to their longevity. This unique blend of strength, stability, and corrosion resistance makes them perfect for challenging 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 |
SS 347 Foils are widely used in high-temperature and corrosive environments due to their excellent resistance to oxidation and intergranular corrosion. Common applications include heat exchangers, reactors, furnaces, and exhaust systems in the aerospace, chemical, and petrochemical industries. The material is also used in welding components, thermal power plants, and chemical processing equipment, where its ability to withstand extreme heat and harsh environments is crucial. Stainless Steel 347 Foils are ideal for applications requiring durability, strength, and resistance to high temperatures, ensuring reliable performance in demanding industrial settings.
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