ASTM A312 TP347 Stainless Steel Pipe

Stainless Steel 347 Material Characteristics

Type 347 stainless steel is classed as a multi-purpose austenitic stainless steel - the alloy offers excellent heat and corrosion resistance. The material has better mechanical properties than 304, which makes the alloy more suitable for high-temperature service. The alloy also offers good resistance to polythionic acid stress corrosion cracking and is a useful material for use around reactor plants. Type 347 is non-magnetic in the annealed condition and can only be hardened by cold working. The alloy finds use in the oil, gas and chemical sector as well as the nuclear industry.

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.

Stainless Steel 347 Pipe Specification

Specifications	ASTM A312 / ASME SA312
Dimensional specification	ANSI/ASME B36.19M, ANSI/ASME B36.10M
Size	1 / 8" NB - 24" NB
Outside Diameter	6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Manufacturing Shapes	Hydraulic, Round, Square, Hex, Honed
Manufacturing Techniques	Normalized & as Rolled
Schedule Thickness Range	SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
End Types	Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends)
Surface Finish	No.1, No.4, No.8 Mirror Finish, 2B
Value Added Services	Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing
Inspection and Test Reports	EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports
Outside Finish	2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Seamless Pipes, Finish as per customer Requirements
Delivery Condition	Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Heat Treatment	Normalized, Normalized & Tempered
Packing of Seamless Pipes	Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials	Sizes and Specifications other than above can be on request

Applications of SS 347 Pipes in Various Industries

Corrosion Resistance: One of the key advantages of 347 Stainless Steel Pipes is their exceptional corrosion resistance. This makes them ideal for applications in industries with high exposure to corrosive elements, such as chemical processing, petrochemical, and pharmaceutical sectors. The pipes withstand harsh chemicals, acids, and alkalis, ensuring long-lasting performance.

High-Temperature Applications: SS 347 pipes exhibit excellent resistance to high temperatures, making them suitable for applications in industries that involve extreme heat conditions. They can withstand temperatures up to 800-900°C without losing their strength and structural integrity. This quality is particularly advantageous in power generation, chemical processing, and aerospace sectors.

Chemical Processing Industry: 347 SS Pipes & SS 347 Tubes find extensive use in the chemical processing industry. They are used to transport various chemicals, acids, and solvents, ensuring the integrity of the fluid transfer systems. Their corrosion resistance and high-temperature stability make them highly reliable for critical processes in this sector.

Petrochemical Industry: In the petrochemical industry, stainless steel 347 pipes play a crucial role in the transportation of petroleum products and gases. These pipes can withstand the corrosive nature of petroleum-based compounds and maintain the integrity of the pipelines, ensuring safe and efficient operation.

Pharmaceutical Industry: The pharmaceutical industry demands high standards of cleanliness and hygiene. Stainless Steel 347 Welded Pipe is widely used in the manufacturing and distribution of pharmaceutical products, where sterility and resistance to corrosion are paramount. These pipes prevent contamination and maintain the purity of the materials being transported.

Food Processing Industry: Stainless steel 347 pipes are extensively utilized in the food processing industry due to their hygienic properties and corrosion resistance. They are used in the transportation of food products, beverages, and dairy items, ensuring the integrity and safety of the production processes.

Power Generation Industry: The power generation industry relies on stainless steel 347 pipes for various applications. These pipes are used in thermal, nuclear, and renewable energy plants, which handle high-pressure steam, corrosive gases, and extreme temperatures.

Aerospace Industry: Stainless steel 347 pipes find their place in the aerospace industry due to their ability to withstand high temperatures and resist corrosion. They are used in the construction of aircraft engines, fuel.