Complaint
Stainless Steel Industry Pipe
Product: | Seamless Stainless Steel Pipe, Stainless Steel Seamless Pipe |
Size: | OD: 3-3000 mm |
WT: 1.0-150 mm | |
LENGTH: 5.8/6/11.8/12m | |
Pipe Standard: | ASTM A213, ASTM A312, ASTM A269 |
DIN 17456,DIN 17457, | |
EN 10216, BS 3605, JIS 3459, JIS3463, GOS T9941 | |
Material: | 304/L,316/L,201,202,301,347/H,316Ti,309s,310s |
Process: | Cold drawn, Cold rolled, Precision Rolled |
Finish: | Annealed & pickled, bright annealing, polished |
Super Duplex Stainless Steel ASTM A789/ASME SA789 UNS S32750/S31803
The seamless stainless steel pipes & tubes have been widely used in petrochemical, boilers, nuclear power,machinery, shipping industry and water industry, etc.
The welded steel pipes & tubes have been widely used in chemical, machinery, gas or oil transformation, shipping industry and water industry, etc.
Super duplex stainless steel is a combination of austenitic and ferritic stainless steel, with higher levels of chromium, molybdenum, and nitrogen than standard duplex stainless steel. This results in a material that offers higher strength and better resistance to corrosion than standard duplex stainless steel.
The properties of super duplex stainless steel ASTM A789/ASME SA789 UNS S32750/S31803 include:
1.High strength: Super duplex stainless steel has a high yield strength and tensile strength, making it suitable for use in applications that require high strength.
2.Corrosion resistance: Super duplex stainless steel is highly resistant to corrosion, including pitting and crevice corrosion, making it suitable for use in harsh environments.
3.Toughness: Super duplex stainless steel has excellent toughness and impact resistance, making it suitable for use in applications that require high toughness.
4.Weldability: Super duplex stainless steel is easily weldable, making it easy to fabricate and install.
Applications of Super Duplex Stainless Steel ASTM A789/ASME SA789 UNS S32750/S31803 Boiler Tubes
Super duplex stainless steel ASTM A789/ASME SA789 UNS S32750/S31803 tubes are commonly used in boiler applications. Boiler tubes are used to transfer heat from the combustion gases to the water in the boiler, and they must be able to withstand high temperatures and pressures.
Super duplex stainless steel ASTM A789/ASME SA789 UNS S32750/S31803 tubes offer several benefits in boiler applications, including:
1.High strength: Super duplex stainless steel tubes offer high strength and durability, making them suitable for use in high-pressure and high-temperature applications.
2.Corrosion resistance: Super duplex stainless steel tubes are highly resistant to corrosion, including corrosion from acidic and alkaline solutions, making them suitable for use in harsh environments.
3.Heat resistance: Super duplex stainless steel tubes are able to withstand high temperatures, making them suitable for use in boilers.
4.Easy to fabricate and install: Super duplex stainless steel tubes are easily weldable and formable, making them easy to fabricate and install.
Conclusion
Super duplex stainless steel ASTM A789/ASME SA789 UNS S32750/S31803 tubes offer high strength, excellent corrosion resistance, and high toughness, making them suitable for use in a variety of applications, including boiler applications. These tubes are able to withstand high temperatures and pressures, making them suitable for use in harsh environments. They are also easily weldable and formable, making them easy to fabricate and install.
Comparison of the common grades
Stainless Steel Round Tubing is generally used for structural purposes and applications that range from aesthetic to highly functional. Stainless tubing provides good corrosion resistance, weldability, machinability, and can be easily cleaned and sterilized.
Specifications:
ASTM A312 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A790 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
ASME SA213 Seamless Ferrite and Austenitic Alloy Steel Pipe for Boiler, Superheater and Heat Exchanger
ASME SA249 Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
GB/T14976-2002 Stainless steel seamless tubes for fluid transport
GB/T12771-2008 Stainless steel welded tubes for fluid transport
......
Features of 316 stainless steel seamless pipe:
1.Excellent corrosion resistance
2.Good for cold working or hot working
3.High plasticity and ductility
4.Optimum general performance
5.A wide range of applications
