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2205 stainless steel coiled tubing

Chemical Composition (%) of 2205 Duplex Stainless Steel coiled tubing
2205 stainless steel coiled tubing
C Mn Si P S Cr Mo Ni N
2205 (S31803) 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
2205 (S32205) 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
Mechanical Properties of 2205 Duplex Stainless Steel coiled tubing
Grade Tensile Strength ksi (min) Yield Strength 0.2% ksi (min) Elongation % Hardness (HB) MAX
2205 90 65 25 217
Physical Properties of 2205 Duplex Stainless Steel coiled tubing
2205 stainless steel coiled tubing
Density
lbm/in3
Electrical
Resistivity
mW•in
tdermal
Conductivity
(BTU/hr•ft•°F)
Heat
Capacity
BTU/lbm•°F
Electrical
Resistivity
(in x 10-6)
at 68°F 0.278 27.6 8.7 0.112 33.5
at 212°F 26.1 9.2 0.119 35.4
at 392°F 25.4 9.8 0.127 37.4
at 572°F 24.9 10.4 0.134 39.4

Alloy 2205 (UNS S32305/S31803) is a 22% chromium, 3% molybdenum, 5-6% nickel, nitrogen alloyed duplex stainless steel plate with high general, localized, and stress corrosion resistance properties in addition to high strength and excellent impact toughness.

2205 stainless steel coiled tubing

Alloy 2205 duplex stainless steel plate provides pitting and crevice corrosion resistance superior to 316L or 317L austenitic stainless steels in almost all corrosive media. It also has high corrosion and erosion fatigue properties as well as lower thermal expansion and higher thermal conductivity than austenitic.

2205 Duplex Stainless Steel Plate Processing – Hot Forming:

2205 stainless steel coiled tubing

Most Duplex 2205 producers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 to 1150°C). If the shape of the work piece is not compact, the edges may be significantly cooler than the bulk, and there is risk of cracking in the cooler regions.

2205 Duplex Stainless Steel coiled tubing Processing – Cold Forming:

Duplex 2205 has shown good formability in a variety of fabrications. The high strength of Duplex 2205 can pose problems. Even when the equipment has sufficient power, allowance must be made for higher spring-back caused by the grade’s high strength.

2205 Duplex Stainless Steel coiled tubing Applications:

  • Chemical processing, transport and storage – pressure vessels, tanks, piping, and heat exchangers
  • Oil and gas exploration and processing equipment – piping, tubing, and heat exchangers
  • Marine and other high chloride environments
  • Effluent scrubbing systems
  • Pulp and paper industry – digesters, bleaching equipment, and stock-handling systems
  • Cargo tanks for ships and trucks
  • Food processing equipment
  • Biofuels plants

2205 Duplex Stainless Steel Equivalent Standards:

  • ASTM/ASME: A240 UNS S32205/S31803
  • EURONORM: 1.4462 X2CrNiMoN 22.5.3
  • AFNOR: Z3 CrNi 22.05 AZ
  • DIN: W.Nr 1.4462

Post time: Apr-24-2023