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Nial Sheets and Plates is a reputable manufacturer and supplier of top-notch Stainless Steel 347H Sheets and Plates based in Houston, USA. We cater to industries that require exceptional high-temperature strength and corrosion resistance. Our precision-engineered Stainless Steel 347H Sheets and Plates are crafted for demanding applications where heat and pressure are at their peak. With a strong focus on quality control, cutting-edge manufacturing techniques, and prompt delivery, we proudly support the petrochemical, oil and gas, power generation, and chemical processing sectors with Stainless Steel 347H products that guarantee durability, weldability, and long-lasting performance even in the toughest environments.
Stainless Steel 347H Sheets and Plates are a stabilized austenitic stainless steel, featuring approximately 17–20% chromium, 9–13% nickel, and the addition of columbium (niobium) for stabilization, along with a higher carbon content than standard 347 to enhance high-temperature creep strength. These plates boast a tensile strength ranging from 515–750 MPa and a yield strength close to 205 MPa, offering impressive toughness and resistance to intergranular corrosion. They maintain their strength and structural integrity at elevated temperatures, making them ideal for heat-intensive applications.
| 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.
You’ll find Stainless Steel 347H Sheets and Plates widely utilized in scenarios that demand outstanding strength and corrosion resistance at high temperatures. They are frequently employed in the petrochemical and oil and gas industries for reactor vessels, heat exchangers, and furnace components. In the power generation sector, they are used in boiler tubes, superheater tubes, and various high-pressure steam equipment. The chemical processing industry relies on them for piping systems that handle high-temperature corrosive media. Additionally, they are well-suited for aircraft exhaust stacks and expansion joints. With their excellent weldability, creep resistance, and stability, Stainless Steel 347H Sheets and Plates are a dependable choice for challenging operating conditions.
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Houston, TX 77041
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