ASME SA213 TP347 Shell And Tube Heat Exchanger Stainless Steel Seamless Tubes

ASME SA213/ASTM A213 This specification covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, T9, T11, T22, TP304, TP316L,TP321, TP347 etc.TP347 seamless tubes, tubes of this material describe a high-performance, corrosion-resistant tubes made from a special grade of stainless steel, specifically designed for use in the high-pressure and high-temperature sections of Shell and Tube Heat Exchangers.

Chemical Composition (%) max

Carbon: 0.08

Manganese: 2.00

Phosphorus: 0.045

Sulfur: 0.030

Silicon: 1.00

Chromium: 17.0-20.0

Nickel: 9.0-13.0

Titanium: 10×C-1.10

Mechanical Properties

TP347 Austenitizing/Solutioning Temperature,min or range : 1900 °F [ 1040°C ]

TP347 Tensile Strength, min. : 75ksi [ 515MPa ] ; Yield Strength, min.: 30ksi [ 205MPa ]

TP347 Elongation in 2 in. or 50mm, min.: 35% ; Brinell/Vickers: 192HBW/200HV ; Rockwell: 90HRB

Advantages

TP347 is an austenitic stainless steel known for its addition of Niobium (Columbium).The Niobium acts as a "stabilizer." It preferentially combines with Carbon, preventing the formation of Chromium Carbides along the grain boundaries when the metal is heated to a specific temperature range (sensitization). This makes it highly resistant to intergranular corrosion.

TP347 has higher pressure integrity (no weak seam); more uniform strength and structure around the circumference; better reliability in high-pressure and high-temperature services; less prone to corrosion at a potential weld line.

Applications

Oil & Gas / Refining Projects : Heat exchangers in catalytic reforming units, hydrocrackers, and other processes involving corrosive streams.

Nuclear Power: In certain auxiliary heat exchange systems.

Power Plants: Common in boilers, superheaters / reheaters, and heat exchangers.

Chemical Processing: Handles corrosive fluids and high-pressure steam, for heating or cooling aggressive chemicals..

Why Specify ASME SA213 TP347 usually for Heat Exchanger?

ASME SA213/ASTM A213 This specification usually for high-pressure and high-temperature services, such as boiler, superheater, and heat-exchangers. And TP347 maintains its strength at elevated temperatures better than standard grades like TP304 or TP316L.

TP347 can chloride stress corrosion cracking (CSCC) resistance: While not as resistant as a duplex stainless steel, its niobium stabilization offers some improvement over non-stabilized grades.

If the heat exchanger will operate, or even be shut down, in a temperature range that causes "sensitization" (425–815°C / 800–1500°F), TP347 is an excellent choice to prevent this specific failure mode.Involve risk of intergranular corrosion.

Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always.   The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below : 
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube,  KL type fin tube), Embedded G type fin tube , Extruded fin tube,  low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.