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Wiraphan Sheets and Plates, located in the vibrant city of Bangkok, Thailand, stands out as a top-notch manufacturer and supplier of high-quality Stainless Steel 347 Coils. Renowned for their precision in manufacturing and dependable performance, this company provides durable, corrosion-resistant, and heat-resistant stainless steel solutions tailored for a variety of industrial applications. The 347 grade coil, which is stabilized with niobium, boasts impressive resistance to intergranular corrosion and excels in high-temperature settings. Wiraphan is committed to strict quality control, timely deliveries, and personalized services, making them a go-to choice for industries like chemical processing, petrochemicals, food processing, and power generation, both locally and globally.
Stainless Steel 347 Coil is an austenitic stainless steel that’s stabilized with niobium and tantalum, effectively preventing chromium carbide precipitation and enhancing its resistance to intergranular corrosion. It features 17–19% chromium, 9–13% nickel, along with trace amounts of carbon, manganese, and silicon, which contribute to its excellent mechanical properties. This material showcases a tensile strength of around 515–720 MPa, a yield strength of 205–310 MPa, and an elongation of 40%, ensuring high ductility and toughness. Its remarkable corrosion resistance, paired with stability at elevated temperatures up to 870°C, makes it perfect for demanding industrial applications that require both durability and heat endurance.
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 Coil finds its place in heat exchangers, boilers, chemical tanks, and pressure vessels, thanks to its impressive high-temperature and corrosion resistance. It’s particularly suited for automotive exhaust systems, furnace components, and aircraft parts where stability under thermal stress is essential. Additionally, this coil is utilized in food processing equipment, petrochemical facilities, and power generation systems. With its excellent formability, weldability, and surface finish, Stainless Steel 347 Coil delivers reliable, long-lasting solutions across industries that demand both strength and resistance to corrosion and oxidation.
Yes, we offer custom sizes for Stainless Steel 347 Coils to meet specific project needs. Our team at Wiraphan Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@wiraphansheetsplates.com.
| Grade | WERKSTOFF NR. | UNS | JIS | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | X6CrNiTi18-10 |
Stainless Steel 347 Coils and Slitting Coils are widely used in industries where high temperature and corrosion resistance are critical. They are ideal for aerospace components, chemical processing equipment, and power generation applications, including heat exchangers, furnace parts, and reactor cores. These coils are also used in marine environments, automotive exhaust systems, and welded structures exposed to high temperatures. Their excellent resistance to intergranular corrosion makes them suitable for food processing, pharmaceutical industries, and applications requiring strong weldability in high-heat conditions.
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Bangkok, Thailand
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