SA789 Duplex 2205 / Uns S32205 Stainless Steel U Bend Tube

• Customization: Available
• After-sales Service: Supplied
• Warranty: 30 Years
• Model NO.: Seamless
• Type: Seamless
• Technique: Cold Drawn
• Material: Stainless Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Material2: Austenitic Stainless Steel
• Material3: Super Duplex Steel
• Material4: Ferritic Stainless Steel
• Material5: Martensitic Stainless Steel
• Material6: Precipitation Hardened Stainless Steel
• Material7: Urea Grade Stainless Steel Pipe
• Applicaiton: Nuclear Power/Electric Power/Oil Refining
• Applicaiton2: Oil and Gas Exploitation/Coal Chemical Industry
• Applicaiton3: Fine Chemical Industry/Natural Gas
• Applicaiton4: Offshore Engineering&Shipbuilding/Sanitary Tubes
• Applicaiton5: Seawater Desalination&Water Treatment
• Applicaiton6: Instrumentation Tubing/Heat Exchanger Tube
• Applicaiton7: Various Faucet, Towel Rack, Hanger, Hard Water
• Applicaiton8: Sanitary Ware Supporting Frame, Pipe Joints
• Applicaiton9: Sanitary Products Connector, Soft Water Pipe Field
• Transport Package: Plywood Cases/Plastic Bags Bundled/U Tube Packing
• Specification: OD 6.35-168.3mm
• Trademark: EZS
• Origin: China
• HS Code: 730441
• Production Capacity: 200000 Tons/Year

Product Description

Product Description

Product Name:	U Bend Tube	Standard:	ASTM A789 / ASME SA789
Material Grade:	UNS S31803, S32205, S32750, S32760	Type:	Seamless/Welded
Size:	1/2", 3/4", 1" ,1 1/2", 1 1/4", 2" Etc.	NDT:	100% HT, ET, UT
Applications:	Boiler, Heat Exchanger, HVAC Systems, Marine Applications,
Highlight:	Seamless U Bend Tube ASME SA789 ,  Duplex U Shaped Steel Tubing ,  Stainless Steel Seamless U Tube

 

ASME SA789 Duplex 2205 / UNS S32205 Stainless Steel U Bend Tube for Heat Exchanger

 

A U-bend tube is a tube that is bent into a U shape to facilitate heat exchange processes. They are commonly used in heat exchangers, condensers, and other thermal management systems. They can be designed and manufactured to precise specifications, ensuring suitability for application in various installations.Duplex UNS S32205 exhibits excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, which makes it suitable for applications in environments that are rich in chlorides or fluctuating temperatures.

 

 

Equivalent Grade of S32205 Duplex Steel Tubing

Grade	UNS No	Old British	Euronorm	Swedish SS	Japanese JIS
BS	En	No	Name
2205	S31803 / S32205	318S13	-	1.4462	X2CrNiMoN22-5-3	2377	SUS 329J3L

 

 

ASTM A789/ASME AS789 Duplex Steel Tubing Chemical Requirements

UNS	C	Mn	P	S	Si	Ni	Cr	Mo	N	Cu	Other
S31803	0.03	2	0.03	0.02	1	4.5-6.5	21-23	2.5-3.5	0.08-0.2	...	...
S32205	0.3	2	0.3	0.2	1	4.5-6.5	22-23	3-3.5	0.14-0.2	...	...
S32750	0.03	1.2	0.035	0.02	0.8	6-8	24-26	3-5	0.24-0.32	0.5	...
S32760	0.3	1	0.03	0.01	1	6-8	24-26	3-4	0.2-0.3	0.15-1	W 0.5-1

 

 

Good Properties of S32205 Duplex Steel Tubing

• Corrosion Resistance: S32205 exhibits excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, which makes it suitable for applications in environments that are rich in chlorides or fluctuating temperatures.
• Mechanical Strength: Duplex stainless steels like S32205 provide higher strength and toughness compared to standard austenitic stainless steels. This translates to enhanced performance in high-pressure and high-temperature applications.
• Weldability: A789 S32205 can be welded using various methods (e.g., TIG, MIG) while maintaining its integrity, though it requires careful control of heat input to avoid welding-related issues.

 

 

Advantages of Using A789 S32205 U-Bend Tubes

1. Longevity: High resistance to corrosion and wear leads to a longer lifespan, reducing maintenance costs.
2. Efficiency: Improved heat transfer properties enhance operational efficiency in thermal applications.
3. Strength: Higher mechanical properties mean they can withstand greater pressures and temperatures, critical in harsh environments.

 

 

Applications

1. Chemical Processing:

   • S32205 is resistant to pitting, crevice corrosion, and stress corrosion cracking, making it ideal for heat exchangers used in chemical processing where corrosive substances are present.

2. Oil and Gas Industry:

   • U-bend tubes made from S32205 are commonly used in offshore and onshore facilities for heat exchangers, stabilizing the temperature of fluids used in drilling and production processes.

3. Power Generation:

   • In power plants, S32205 U-bend tubes are utilized in heat exchangers to efficiently transfer heat from one fluid to another, often used in waste heat recovery and steam generation.

4. Marine Applications:

   • The steel's excellent resistance to seawater corrosion allows it to be used in marine heat exchangers, where exposure to saltwater is a concern.

5. Food and Beverage Industry:

   • S32205 is used in food processing equipment, especially where heat exchange is necessary. Its corrosion resistance ensures the safety and quality of food products.

6. HVAC Systems:

   • In heating, ventilation, and air conditioning systems, duplex stainless steel U-bend tubes help efficiently manage thermal exchange processes, ensuring effective temperature control.
7. Heat Exchanger, Boiler