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One of the top producers and suppliers of premium stainless steel 347 coils and slitting coils is Kunj Sheets and Plates, situated in Chennai, India. Kunj is renowned for its dedication to quality, accuracy, and prompt delivery. It offers stainless steel solutions that satisfy global standards and satisfy a range of industrial demands. Stabilised austenitic stainless steels like Stainless Steel 347 Coils are perfect for corrosive conditions and high temperatures. Kunj provides SS 347 Coils in custom sizes and finishes with sophisticated production capabilities and stringent quality control, guaranteeing outstanding performance, dependability, and durability for customers in the petrochemical, aerospace, and construction industries.
Columbium (niobium) stabilises the austenitic chromium-nickel stainless steel alloy known as Stainless Steel 347. About 17–20% chromium, 9–13% nickel, and trace amounts of niobium are present to stop carbide precipitation. Particularly after welding, it provides exceptional resistance to intergranular corrosion. The alloy’s elongation is approximately 40%, its yield strength is 205 MPa, and its tensile strength is approximately 515 MPa. SS 347 is appropriate for applications involving thermal cycling and oxidative environments because it retains its strength and resistance to corrosion even at high temperatures.
Specifications : ASTM A240 / ASME SA240
Size : 1/4″ to 4″
Range : 5mm To 150mm
Thickness : 4.0mm – 100mm
Hardness : Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Finish : Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form : Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange)
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 347 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | rowspan=”2″>0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 347 Coils and Slitting Coils offer exceptional resistance to intergranular corrosion, making them ideal for high-temperature environments and industries requiring reliable performance in corrosive conditions. The addition of niobium stabilizes the alloy, preventing carbide precipitation and ensuring excellent weldability. These coils also provide outstanding resistance to oxidation and scaling, even at elevated temperatures. With high tensile strength, excellent formability, and durability, they maintain structural integrity in extreme conditions. Their versatility makes them perfect for applications in aerospace, chemical processing, and power generation, offering a reliable solution for demanding industrial needs.
Yes, we offer custom sizes for Stainless Steel 347 Coils to meet specific project needs. Our team at Kunj Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
| Grade | WERKSTOFF NR. | UNS | JIS | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | X6CrNiTi18-10 |
Industries that need superior corrosion resistance and stability at high temperatures frequently use stainless steel 347 coils and slitting coils. Because of their resistance to heat stress, they are perfect for expansion joints, aircraft exhaust systems, and aerospace components. They are utilised in reactor equipment, pressure vessels, and heat exchangers in the chemical and petrochemical sectors. Additionally, piping systems that function at high temperatures, furnace components, and refinery equipment all use SS 347. Its hygienic qualities and resistance to corrosion also benefit the food processing and pharmaceutical industries. These coils are also used in marine applications and power generation.
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