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Smith Fittings, located in Canberra, Australia, stands out as a top manufacturer and supplier of **Stainless Steel 347H Sheets and Plates**. These products are celebrated for their remarkable high-temperature strength, impressive corrosion resistance, and long-lasting durability. Crafted from austenitic stainless steel that’s stabilized with niobium, these sheets and plates effectively prevent carbide precipitation, ensuring they perform exceptionally well in high-temperature settings. At Smith Fittings, precision manufacturing goes hand in hand with rigorous quality control, resulting in 347H sheets and plates that adhere to international standards. They’re perfect for a variety of applications in industries like chemical processing, power generation, and more, offering enduring structural integrity, dependable performance, and resistance to scaling and oxidation even in the toughest conditions.
**Stainless Steel 347H Sheets and Plates** are composed of chromium (17–19%), nickel (9–13%), and niobium, which boosts their resistance to intergranular corrosion while maintaining their strength at high temperatures. They boast a tensile strength of around 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. With a density of 8.0 g/cm³ and a melting range of 1390–1425°C, these sheets and plates are known for their excellent toughness, weldability, and formability, even in high-temperature and corrosive environments.
| Specifications | : | ASTM A240 / ASME SA240 |
| Thickness | : | 4mm-100mm |
| Width | : | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Length | : | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface | : | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
| Finish | : | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | : | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(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 % |
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 347H | 1.4961 | S34709 | SUS 347H | X12CrNiTi18-9 |
| Material | Size | Thickness |
| PLATES & SHEETS | 1000 mm x 2000 mm | 0.1mm To 100 mm Thickness |
| 1220 mm x 2440 mm (4′ x 8′) | ||
| 1250 mm x 2500 mm | ||
| 1500 mm x 3000 mm | ||
| 2000 mm x 4000 mm | ||
| 2000 mm x 2000 mm |
| Surface Finish | Definition | Application |
|---|---|---|
| 2B | Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster. | Medical equipment, Food industry, Construction material, Kitchen utensils. |
| BA | Those processed with bright heat treatment after cold rolling. | Kitchen utensils, Electric equipment, Building construction. |
| NO.3 | Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001. | Kitchen utensils, Building construction. |
| NO.4 | Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001. | Kitchen utensils, Building construction, Medical equipment. |
| HL | Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size. | Building Construction. |
| NO.1 | The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling. | Chemical tank, pipe |
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 347H sheets and plates offer many benefits, making them ideal for high-temperature environments. High carbon content increases strength, while the presence of columbium improves intergranular corrosion resistance especially in welded structures Its excellent oxidation and corrosion resistance makes it suitable for petrochemical power generation and aerospace applications. Furthermore, 347H exhibits excellent weldability, making it easy to manufacture. The material also maintains structural integrity at high temperatures, ensuring durability and reliability in demanding applications. These features make the 347H the ideal choice for critical, high-performance applications.
These **Stainless Steel 347H Sheets and Plates** find their way into various applications that demand high-temperature durability and corrosion resistance. You’ll often see them in furnace components, heat exchangers, boilers, chemical processing equipment, and petrochemical plants. They’re also essential in the power generation, marine, and food processing sectors, where structural strength, thermal stability, and oxidation resistance are paramount. Their outstanding performance in harsh, high-temperature, and corrosive environments makes them a go-to choice for industrial, structural, and high-performance engineering projects.
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