China Duplex 2205 Pipe Tube Pressure Rating
Duplex 2205 / UNS S32205 / 1.4462 pipes pressure rating depends on several factors, including the pipe size, wall thickness, temperature, seamless, welded and applicable standards. Duplex 2205 is a duplex stainless steel alloy with excellent corrosion resistance and mechanical properties, making it suitable for a wide range of applications in various industries, including oil and gas, chemical processing, and marine engineering.
SA 790 Alloy 2205 Pipe Pressure Rating
| Pipe Outer diameter (In.) |
Wall Thickness Of Pipe (Inches) | |||||||
|---|---|---|---|---|---|---|---|---|
| .028 | .035 | .049 | .065 | .083 | .095 | .109 | .120 | |
| Working Pressure (Psig) | ||||||||
| 1/8 | 7900 | 10100 | ||||||
| 1/4 | 3700 | 4800 | 7000 | 9500 | ||||
| 5/16 | 3700 | 5400 | 7300 | |||||
| 3/8 | 3100 | 4400 | 6100 | |||||
| 1/2 | 2300 | 3200 | 4400 | |||||
| 3/4 | 2200 | 3000 | 4000 | 4600 | ||||
| 1 | 2200 | 2900 | 3400 | 3900 | 4300 | |||
In general, China duplex 2205 pipes are designed to withstand high-pressure environments, but the specific pressure rating may vary depending on the following considerations:
1. Pipe Size(ANSI ASME B36.19):
Larger diameter ASTM A790 UNS S32205 pipes typically have higher pressure ratings compared to smaller diameter pipes, as they can accommodate greater fluid flow and withstand higher loads.
2. Wall Thickness:
Thicker-walled pipes have higher pressure ratings because they offer increased strength and resistance to internal pressure.
3. Temperature:
Elevated temperatures can affect the pressure rating of Duplex 2205 pipes. Higher temperatures may reduce the allowable pressure due to thermal expansion and other temperature-related effects.
4. Type of Seamless And Welded
China Duplex 2205 Seamless Pipe
Seamless pipes are manufactured without any welded seams or joints. They are typically produced by extruding a solid billet of metal through a piercing rod to form a hollow tube. Seamless pipes are known for their uniformity in composition, higher strength, and ability to withstand high-pressure applications. They are often preferred for critical applications where reliability and integrity are paramount.
China Duplex 2205 Welded Pipe
welded pipes are manufactured by welding together two or more pieces of metal to form a continuous pipe. Welded pipes can be produced using various welding techniques, including electric resistance welding (ERW), submerged arc welding (SAW), and seamless pipe manufacturing process. Welded pipes are generally more cost-effective to produce and are available in larger diameters and lengths compared to seamless pipes.
5. Standards:
HT Pipeline manufactures high-strength Duplex 2205 pipes according to strict international specifications, ensuring precise wall thickness and high structural integrity.
Material Grades: UNS S31803 / UNS S32205 / DIN EN 1.4462
Piping Standards: ASTM A790 / ASME SA 790 (for process piping), ASTM A789 (for heat exchanger tubes)
Schedules Available: Sch 5S, Sch 10S, Sch 20S, Sch 40S, Sch 80S, Sch XS, Sch XXS
Quality Testing: Hydrostatic pressure testing, Eddy Current testing, ultrasonic inspection, and PMI (Positive Material Identification) verification
To provide a specific pressure rating for Duplex 2205 pipes, it is essential to consult the relevant standards, design codes, and engineering calculations based on the specific operating conditions and requirements of the application. Additionally, manufacturers and suppliers of Duplex 2205 pipes can provide detailed technical information, including pressure-temperature charts and tables, to assist in determining the appropriate pressure rating for a given piping system.
Duplex 2205 Pipe Pressure Rating FAQ
Q: What is the maximum temperature limit for Duplex 2205 piping?
A: Duplex 2205 is limited to 315°C (600°F) under ASME codes. Operating above this temperature causes severe phase embrittlement and loss of toughness.
Q: Why does Duplex 2205 handle higher pressure than 316L?
A: It has twice the yield strength (450 MPa compared to 205 MPa for 316L), allowing for higher design pressure or thinner walls.
Q: Do welded and seamless Duplex 2205 pipes have the same pressure rating?
A: No. Welded pipes are derated by 15% due to a joint efficiency factor of 0.85, unless the weld undergoes 100% radiographic testing.
