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Nestled in Houston, USA, we take pride in being a reliable manufacturer and supplier of stainless steel sheets, plates, and structural components, with a particular focus on Stainless Steel 347H Channels. These channels are specifically engineered for high-temperature and high-pressure settings, featuring niobium stabilization that enhances their resistance to intergranular corrosion. Perfect for applications that involve heat and thermal cycling, our 347H channels deliver outstanding mechanical strength and durability. We are dedicated to quality, prompt delivery, and ensuring customer satisfaction, supplying top-notch stainless steel 347H channels for various industries, including petrochemical, power generation, and refinery operations, both domestically and internationally.
Stainless Steel 347H is a high-carbon variant of 347, stabilized with niobium (columbium) to combat intergranular corrosion. It generally contains 17–20% chromium, 9–13% nickel, and 0.04–0.10% carbon, with niobium added for carbide stabilization. This alloy boasts a tensile strength of about 515 MPa and a yield strength of roughly 205 MPa, maintaining excellent creep and stress rupture properties even at elevated temperatures. Additionally, 347H is known for its good weldability, oxidation resistance, and toughness, making it a great choice for high-temperature structural applications.
| Standard | ASTM A276, ASTM A479 / ASME SA276, ASME SA479 |
| Condition | HRAP |
| Size Range | Base: 80 to 150 mm Side: 40 to 75 mm |
| Thickness | 5 to 6 mm (depending on size) |
| Grades | 304, 316 |
| Processing | Bar cutting |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|---|
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 13 |
| SS 316 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 – 18.00 | 2.00 – 3.00 | 11.00 – 14.00 |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 1.0 max | 16.00 – 18.00 | 16.00 – 18.00 | 10.00 – 14.00 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 8.0 g/cm3 | 1400 °C (2550 °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.
Nial Sheets and Plates based in Houston, USA, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Stainless Steel 347H Channel offers significant advantages, including superior strength and excellent performance in high-temperature environments. The higher carbon content enhances creep resistance and stress rupture properties, making it ideal for demanding applications. Its tantalum stabilization prevents carbide precipitation, ensuring resistance to intergranular corrosion during welding and prolonged exposure to heat. The alloy provides exceptional oxidation resistance, durability, and stability, even in harsh industrial conditions. Additionally, Stainless Steel 347H Channel is highly formable and weldable, making it a reliable choice for chemical processing, power generation, and heat treatment equipment.
Yes, we offer custom sizes for Stainless Steel 347H Channel to meet specific project needs. Our team at Nial Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@nialsheetsandplates.us.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
| SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | – | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
| SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | Z3CND17‐11‐02 / Z3CND18‐14‐03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
| Description | Process | G kg/m | h mm | b mm | tw mm | tf mm | r1 mm | r2 mm |
|---|---|---|---|---|---|---|---|---|
| C 50X25X5X6 | Hot Rolled | 3.95 | 50 | 25 | 5 | 6 | 6 | 3 |
| C 75X40X5X7 | Hot Rolled/Laser | 6.95 | 75 | 40 | 5 | 7 | 8 | 4 |
| C 100X50X5X7.5 | Hot Rolled/Laser | 9.37 | 100 | 50 | 5 | 7.5 | 8 | 4 |
| C 125X65X6X8 | Hot Rolled/Laser | 13.4 | 125 | 65 | 6 | 8 | 8 | 4 |
| C 150X75X6.5X10 | Hot Rolled/Laser | 18.62 | 150 | 75 | 6.5 | 10 | 10 | 5 |
| C 150X75X9X12.5 | Hot Rolled/Laser | 24.01 | 150 | 75 | 9 | 12.5 | 5 | 1 |
| C 180X75X7X10.5 | Hot Rolled/Laser | 21.52 | 180 | 75 | 7 | 10 | 2 | 1 |
| C 200X80X7.5X11 | Hot Rolled/Laser | 24.77 | 200 | 80 | 7.5 | 11 | 2 | 1 |
| C 200X90X8X13.5 | Hot Rolled/Laser | 30.53 | 200 | 90 | 8 | 13.5 | 2 | 1 |
| C 230X80X8X12 | Hot Rolled/Laser | 28.56 | 230 | 80 | 8 | 12 | 2 | 1 |
| C 250X90X9X13 | Hot Rolled/Laser | 34.86 | 250 | 90 | 9 | 13 | 2 | 1 |
| C 250X90X11X14.5 | Hot Rolled/Laser | 40.34 | 250 | 90 | 11 | 14.5 | 2 | 1 |
| C 300X90X9X12 | Hot Rolled/Laser | 37.17 | 300 | 90 | 9 | 12 | 2 | 1 |
| C 300X90X10X15.5 | Hot Rolled/Laser | 43.85 | 300 | 90 | 10 | 15.5 | 2 | 1 |
| C 300X90X12X16 | Hot Rolled/Laser | 48.78 | 300 | 90 | 12 | 16 | 2 | 1 |
| C 380X100X10.5X16 | Hot Rolled/Laser | 54.85 | 380 | 100 | 10.5 | 16 | 2 | 1 |
| C 380X100X13X16.5 | Hot Rolled/Laser | 62.5 | 380 | 100 | 13 | 16.5 | 2 | 1 |
| C 380X100X13X20 | Hot Rolled/Laser | 67.37 | 380 | 100 | 13 | 20 | 2 | 1 |
Stainless Steel 347H Channels find extensive use in high-temperature scenarios like heat exchangers, boiler tubes, pressure vessels, and furnace components. Their ability to resist creep, stress rupture, and intergranular corrosion makes them perfect for industries such as power generation, oil and gas refining, and chemical processing. These channels are also utilized in superheater and reheater tubes, catalytic converter systems, and exhaust manifolds where thermal stability is essential. With their excellent weldability and strength retention at high temperatures, 347H channels ensure long-lasting durability and dependable performance in extreme operating conditions.
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