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A reputable producer and supplier of premium stainless steel 347 foils, Vipul Sheets and Plates is based in Delhi, India, and is well-known for its outstanding performance in corrosive and high-temperature conditions. Columbium (niobium) stabilises these foils, providing superior weldability and exceptional resistance to intergranular corrosion. For industries like power generation, chemical processing, and aerospace, Vipul Sheets and Plates guarantees quick delivery, precise manufacturing, and adherence to international quality standards. Vipul Sheets and Plates is a well-known supplier of dependable stainless steel foil solutions in India and overseas thanks to its customer-focused philosophy and dedication to quality.
Iron serves as the base, and the main constituents of stainless steel 347 Foils are chromium (17–20%), nickel (9–13%), and columbium (plus tantalum, which is about ten times the carbon content). After being exposed to high temperatures, this stabilised grade resists intergranular corrosion and sensitisation. It has a yield strength of about 205 MPa, a tensile strength of about 515 MPa, and an elongation of about 35–40%. Up to 870°C, the alloy retains good mechanical strength and resistance to oxidation. It is perfect for harsh thermal and chemical environments due to its exceptional formability and weldability, particularly in situations where post-weld heat treatment is impractical.
| 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 |
347 Stainless Steel Foils are frequently used in corrosive and high-temperature service environments, especially when welding and thermal cycling are repeated. Exhaust manifolds, high-heat ducting systems, and aerospace components are typical uses. They are utilised for furnace parts, reactor linings, and heat exchangers in the chemical and petrochemical industries. These foils are also perfect for flexible connectors, expansion joints, and bellows. In delicate applications, their thin, ductile shape enables precise cladding and wrapping. 347 foils are ideal for the food, pharmaceutical, and marine industries where durability and hygienic conditions are crucial because of their resistance to intergranular corrosion.
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