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Views: 3 Author: Wang Publish Time: 2024-12-17 Origin: Site
Stainless Steel 347 is a columbium(niobium)/tantalum stabilized austenitic chromium-nickel stainless steel which was developed to provide an 18-8 type alloy with improved intergranular-corrosion resistance. Alloy 347 has a slightly improved corrosion resistance over other alloys of stainless steel in strongly oxidizing environments as a result of the addition of columbium (niobium) and tantalum. Columbium-tantalum carbides precipitate within the grains instead of forming at the grain boundaries. Type 347 should be considered for applications requiring intermittent heating between 800ºF (427ºC) and 1650ºF (899ºC), or for welding under conditions which prevent a post-weld anneal.
347 stainless steel can witdh stand to high temperature and this grade has a good corosion resistance in temperatures between 400 to 800 degree. This grade is written as 1.4550 or X6CrNiNb18-10 according to EN norm and it is written as UNS S34700 according to UNS norm. 347 material is a high temperature grade and it is designed for temperatures between 400 to 800 degree. 347 stainless can not be heat threated and it has a similar corrosion resistance to 321 and 304 grade stainless steels. 347 stainless is similar to 321 (1.4541) grade for many applications and this grade can weld easiliy. The most important elements in 1.4550 material are niobium and tantalum, which makes this grade have more stabilized structure. 347 stainless steel used in chemical industry, food production facilities, food storage equipment, oil refinery parts, waste treatment plants.
Stainless Steel 347 Pipe is resistant to various organic and inorganic chemicals, along with sterilized solutions. They are used in exhaust manifolds, aircraft collector rings, high temperature chemical processing equipment, and in expansion joints. SS 347 Seamless Pipe can also resist intergranular corrosion. It can also avoid chromium carbide precipitation due to the addition of columbium. 347 SS pipes are not welded with oxyacetylene welding. Our product is being used in various industries across the world and is durable with high mechanical and physical properties.
Elements colombium and tantalum in the alloy of 347 Stainless Steel Tubing, in order to stabilize it. Frequently referred to as by its trade name UNS 34700, the Aisi 347 Tube proves to be advantageous for use in high temperature settings, especially in those industries where the temperatures fall into the chromium carbide precipitation range. This essentially means that the alloy used in the manufacture of Stainless Steel Type 347 Welded Tubing can be utilized between a temperature range of 800°F to 1500°F. Mechanical properties of the Stainless Steel Grade 347 Round Tubing such as creep & stress rupture properties, in comparison to grades 304 or 304L, are much higher.
ASTM A213 TP 347 pipe that are made using electric fusion are available in the size range of 6 inches to 100 inches. They offer good creep strength even at elevated temperatures. 347 Stainless Steel Pipe is mostly used in marine environments, marine architecture, and in equipment and laboratory furniture. SS 347 ERW pipes are made through electric resistance weld and are therefore good for heavily welded applications. They are supplied in annealed, bright annealed, pickled, cold drawn, and polished condition. SS 347 Welded Pipe have a different thickness that is defined in the different schedules.
Standard Specification | ASTM A 312 Tp347/ ASME SA 312 Tp347 |
Types | Seamless, ERW, Welded, EFW |
Size | ½ to 6 Inch NB |
Surface Finish | Bright, Cold Finish, Annealing, Polished, Pickling |
Manufacturing Technology | Hot / Cold Formed |
Wall Thickness | 0.1 To 60 mm |
Standard | DIN, JIS, AMS, GB, AISI, ASME, ASTM, EN, GOST |
Technique | Cold Rolled |
Manufacturing Shapes | Round, Rectangle, Square, Box Section |
Schedule Pipe Thickness Range | SCH 80, SCH 40, SCH XXS, SCH 5, SCH 80S, SCH10, SCH XS, SCH 160 Supplier in China |
Stainless Steel 347 Pipes are widely used in the chemical processing industry due to their excellent resistance to corrosive chemicals and high temperatures. These pipes handle a variety of chemicals, including acids, alkalis, and solvents, without degrading over time. The oxidation resistance ensures that the pipes maintain their integrity and performance even in harsh chemical environments. Applications include chemical reactors, pipelines, and storage tanks.
The petrochemical industry relies heavily on Stainless Steel 347 Pipes for transporting and processing hydrocarbons and other petrochemical products. These pipes are designed to withstand high pressures and temperatures encountered in refining and processing operations. The resistance to corrosion and ability to maintain structural integrity under extreme conditions make them ideal for use in refineries, distillation units, and transfer lines.
Stainless Steel 347 Pipes are crucial in the power generation sector due to their high-temperature stability and resistance to thermal stress. These pipes are used in boiler systems, steam lines, and turbine components, which must endure extreme temperatures and high pressures. The creep resistance of 347 ensures that the pipes maintain their shape and strength over long periods, contributing to the efficiency and safety of power generation systems.
The aerospace industry demands materials that can withstand extreme conditions, and Stainless Steel 347 Pipes meet these requirements effectively. These pipes are used in jet engine components, exhaust systems, and fuel systems, which are exposed to high temperatures and harsh operating environments. Their strength and resistance to oxidation make them suitable for aerospace applications that require reliable and durable materials.
Maintaining hygiene and avoiding contamination is critical in the food and beverage industry. Stainless Steel 347 Pipes are employed in processing equipment, sanitary pipelines, and storage tanks due to their corrosion resistance and ease of cleaning. The high-temperature resistance ensures that these pipes can handle processes involving steam and hot liquids without compromising the quality or safety of the food products.
The pharmaceutical industry requires high standards of cleanliness and reliability in its equipment. Stainless Steel 347 Pipes are used in pharmaceutical manufacturing, drug delivery systems, and purification processes. The corrosion resistance and high-temperature stability ensure that these pipes perform reliably in environments that require stringent cleanliness and durability standards.
In marine applications, Stainless Steel 347 Pipes are used for their resistance to seawater corrosion and high strength. These pipes are employed in shipbuilding, offshore platforms, and marine equipment. The ability to withstand harsh marine environments while maintaining structural integrity makes them an ideal choice for applications where exposure to saltwater and extreme conditions is common.
Conclusion
In summary, Stainless Steel 347 Pipes are versatile and reliable components used across a range of industries due to their high-temperature resistance, corrosion resistance, and strength. From chemical processing and petrochemical industries to aerospace and marine applications, these pipes play a crucial role in ensuring the efficiency and safety of various industrial processes. By selecting Stainless Steel 347 Pipes for your applications, you benefit from their durability and performance, making them a valuable asset in any demanding environment.
