Stainless steel is a popular material used in various applications, including construction, oil and gas industries, and aerospace. One of the essential components of stainless steel fasteners is stud bolts. However, not all stud bolts are created equal. Stainless steel 347 is a type of austenitic steel alloy that contains chromium, nickel, and columbium. Stainless Steel 347 Stud Bolts are commonly used in high-temperature environments, where their excellent high-temperature strength and corrosion resistance properties come in handy. These stud bolts can be found in various applications, including turbines, furnace combustion chambers, and exhaust manifolds.
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Stainless steel 347H is a higher carbon version of 347, capable of withstanding even higher temperatures of up to 1,600°F. The added carbon content enhances its mechanical properties, making it an excellent fit for high-temperature applications. Stainless Steel 347H Stud Bolts can be found in various applications, including chemical processing plants, petrochemical plants, and steam boilers.
Stainless steel 347 stud bolts offer benefits, including excellent corrosion resistance, high-temperature strength, and good fabricability. They are also durable, stable, and have a high creep strength. These properties make stainless steel 347 stud bolts perfect for high-pressure and high-temperature applications.
Stainless steel 347H stud bolts are similar to 347 stud bolts but offer additional properties, including higher carbon content, improved strength, and stability at higher temperatures. Stainless steel 347H stud bolts are commonly used in high-temperature environments where high strength and resistance to stress that moderates the temperature are essential.
Stainless steel 347 stud bolts are commonly used in high-temperature environments requiring excellent corrosion resistance and high strength. On the other hand, Stainless steel 347H stud bolts are suitable for chemical processing plants, petrochemical plants, and steam boilers that require the material to withstand even higher temperatures.
It's essential to understand the differences between Stainless Steel 347 Stud Bolts and Stainless Steel 347H Stud Bolts before choosing which fasteners to use in specific applications. Both types have specific benefits and uses, so selecting the appropriate fastener to endure extreme conditions is crucial. Understanding the application temperature range and the specific mechanical properties will aid in making the best decision for selecting these stud bolts.
Stainless Steel 347 Studbolts provide excellent resistance to intergranular corrosion, making them suitable for applications where sensitization can occur. Their high-temperature strength and oxidation resistance make them ideal for petrochemical, chemical processing, and power generation applications.
Stainless Steel 347H Studbolts can be used at temperatures up to 1000°C (1832°F) in continuous service.
Yes, Stainless Steel 347H Studbolts can be used in cryogenic applications. It retains good mechanical properties and toughness at extremely low temperatures, making it suitable for cryogenic environments such as liquefied natural gas (LNG) facilities & aerospace applications.
|SS 347||1.4550||S34700||SUS 347||08Ch18N12B||X6CrNiNb18-10|
|SS 347H||1.4961||S34709||SUS 347H||-||X6CrNiNb18-12|
|SS 347||0.08 max||2.0 max||1.0 max||0.045 max||0.030 max||17.00 - 20.00||10xC – 1.10||9.00 - 13.00||62.74 min|
|SS 347H||0.04 – 0.10||2.0 max||1.0 max||0.045 max||0.030 max||17.00 - 19.00||8xC – 1.10||9.0 -13.0||63.72 min|
|Density||Melting Point||Tensile Strength||Yield Strength (0.2%Offset)||Elongation|
|8.0 g/cm3||1454 °C (2650 °F)||Psi – 75000 , MPa – 515||Psi – 30000 , MPa – 205||35 %|
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