We offer 2205 stainless steel pipe & tube in wide large of sizes, duplex 2205 possesses high strength and excellent corrosion resistance, so it can be applied in harsh environment, which other stainless steels can not replace, 2205 is the most used grade in duplex stainless steel, approx 60% for proportion.
2205 stainless steel pipe & tube specifications
ASTM A789, ASME SA789
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM A790, ASME SA790
General Requirements for alloy and Stainless Steel Pipe
Duplex 2205 Stainless Steel
2205 a duplex grade with a ferritic-austenitic microstructure, nearly 50% ferritic and 50% austenitic, containing contain larger amounts of chromium (22%), 5% nickel, 3.2% molybdenum and other alloying elements such as nitrogen and manganese, the high chromium, molybdenum and nitrogen contents provide good corrosion resistance, it is superior to 316/316L and 317L.
2205 Stainless Steel Chemical Composition (% max)
|0.03||2.0||1.0||0.03||0.02||21.0 – 23.0||2.5 – 3.5||4.5 – 6.5||0.08 – 0.20|
|0.03||2.0||1.0||0.03||0.02||22.0 – 23.0||3.0 – 3.5||4.5 – 6.5||0.14 – 0.20|
2205 Stainless Steel Mechanical Properties
|Tensile strength (Mpa) Min||Yield strength (Mpa) Min||Elongation (%)||Hardness (HRC) max|
Duplex 2205 Stainless Steel Equivalents
2205 Stainless Steel Features
- High resistance to stress corrosion cracking (SCC) in chloride-bearing environments
- High resistance to stress corrosion cracking (SCC) in environments containing hydrogen sulphide
- High resistance to general corrosion, pitting corrosion, and crevice corrosion
- High resistance to erosion corrosion and corrosion fatigue
- High strength – roughly twice the yield strength of Austenitic stainless steel
- Good ductility versus Ferritic stainless steels
- Good weldability
Duplex 2205 stainless steel heat treatment temperature range is 1020 to 1100°C, it have good performance in fabricating, bending, expanding to form pipes and tubes after cold worked, duplex stainless steel pipe produced as specification ASTM A789 and A790, outside diameter range from NPS 1/8 inch to NPS 24 inch, wall thickness range from Sch5 to Sch160.
We offer 2205 pipe complying with cold rolling and cold drawing seamless & welded type manufacturing process, annealing & pickling finishes, used in variety of applications.
- Heat exchangers
- Pressure vessel
- Oil and gas industry
- Pulp, pumps and valves
- Seawater systems
- Food process equipment