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At the heart of Prime Steel, we take immense pride in our role as a trailblazer in the realm of stainless steel solutions. Our expertise extends to the meticulous manufacturing and supply of stainless steel 347/347H flanges, showcasing our unwavering commitment to quality and precision. As your trusted supplier, we prioritize a seamless procurement experience, understanding the urgency and precision required in various industries. Timely deliveries, coupled with our unwavering commitment to superior quality, define our approach to customer satisfaction.
Type: Flanged Pipe Fittings
Material: Stainless Steel
ASTM: A182 /SA182
Grade: 347/ 347h
UNS: S34700/ S34709
WERKSTOFF: 1.4550/ 1.4961
ASTM A182 F347 / ASME SA182 F347h
15mm ( 1/2" NPS ) up to 600mm ( 24" NPS ), For 2500# in sizes from NPS 1/2 to NPS 12
FF—Flat Face, RF—Raised Face, FM—Female Face, M—Male Face, T—Tongue Face, G—Groove Face, RJ—Ring Joint.
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64.
Chemical Processing, Oil and Gas Industry, Petrochemical Industry
Stainless Steel 347/347H flanges are essential components in piping systems, known for their resilience in high-temperature and corrosive environments. The 347 grade is an austenitic stainless steel alloy containing chromium, nickel, and columbium, providing stability against carbide precipitation at elevated temperatures. The 347H variant, with higher carbon content, enhances its strength at high temperatures.
These flanges play a crucial role in connecting pipes and other equipment, facilitating easy assembly and disassembly for maintenance. Their resistance to corrosion, particularly in challenging environments, makes them valuable in industries such as chemical processing, petrochemicals, and power generation.
The chromium composition in Stainless Steel 347/347H ensures excellent corrosion resistance, making them well-suited for applications where durability is paramount. The alloys' high-temperature performance further enhances their suitability for use in thermal processing units and other industries with elevated operating temperatures.
Stainless Steel 347/347H flanges are integral components that embody a balance of strength, corrosion resistance, and high-temperature stability. Their application in critical industries underscores their importance in ensuring the reliability and efficiency of piping systems in demanding environments.
Check ANSI/ASME B16.5, B 16.47 Series A & B, B16.48 Flange Dimensions Download
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
|---|---|---|---|---|
| SS 347 | 1.4550 | S34700 | SUS 347 | X6CrNiTi18-10 |
| SS 347H | 1.4961 | S34709 | SUS 347H | X12CrNiTi18-9 |
| 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 | 0.10 max | 9.00 - 12.00 | 5(C+N) – 0.70 max |
| 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 % |
Carbon Content:
Stainless Steel 347: This grade has a lower carbon content, typically around 0.08%. The lower carbon content helps in resisting sensitization during high-temperature service.
Stainless Steel 347H: The "H" in 347H stands for high carbon content. It contains a higher amount of carbon, usually in the range of 0.04-0.10%. This increased carbon content enhances the high-temperature strength of the alloy.
High-Temperature Strength:
Stainless Steel 347: Suitable for high-temperature applications, but the lower carbon content makes it less ideal for extremely high-temperature conditions compared to 347H.
Stainless Steel 347H: Specifically designed for high-temperature service, the higher carbon content in 347H provides improved strength at elevated temperatures.
Applications:
Stainless Steel 347: Commonly used in applications where moderate high-temperature strength and corrosion resistance are required. Examples include chemical and petrochemical processing.
Stainless Steel 347H: Preferred in situations demanding higher strength at elevated temperatures, such as in thermal processing units and power generation facilities.
Sensitization:
Stainless Steel 347: The lower carbon content minimizes the risk of sensitization, making it resistant to intergranular corrosion after exposure to high temperatures.
Stainless Steel 347H: While the higher carbon content enhances high-temperature strength, it may increase the risk of sensitization. Proper heat treatment and post-welding processes are crucial to mitigate this risk.
The alloy composition, including chromium and columbium, imparts excellent high-temperature stability, making them ideal for use in environments with elevated temperatures.
These flanges are crucial components in piping systems, connecting pipes and equipment. They find applications in industries like chemical processing, petrochemicals, and power generation.
They are commonly used in industries requiring resistance to high-temperature oxidation and corrosion, including chemical processing, petrochemicals, and power generation.
Yes, flanges are designed to facilitate easy assembly and disassembly, making maintenance of piping systems more convenient.
