Carlson Alloy 2205 is a second-generation, nitrogen-alloyed duplex
stainless steel (ferritic-austenitic). It offers an excellent
combination of both strength and corrosion resistance over a wide
range of applications. The approximate 50/50 ferrite-austenite
structure provides excellent chloride pitting and stress corrosion
cracking resistance, with roughly twice the yield strength of the
standard austenitic stainless grades.
The high chromium and molybdenum content, coupled with the nitrogen
addition in 2205, provides general corrosion, pitting, and crevice
corrosion resistance superior to 316L and 317L.
2205 demonstrates superior erosion-corrosion resistance when
compared to 316 stainless steel. It is not subject to intergranular
corrosion in the as-welded condition. 2205 may be successfully
machined by conventional methods.
The (UNS S32205) grade is a restricted-chemistry version which
maintains chromium, molybdenum and nitrogen at higher levels than
the (UNS S31803) composition.
Due to its excellent corrosion resistance, 2205 is a suitable
material for service in environments containing chlorides and
hydrogen sulfide. It is also suitable foe use in dilute sulfuric
acid solutions and for handling organic acids, i.e., acetic acid
and its mixtures.
- Oil and Gas Production – Down-hole piping, gathering line pipe, CO2
tertiary recovery piping, oil-gas separators, heat exchangers.
- Chemical Processing – Heat exchangers, pressure vessels, tanks,
columns, pumps, valves, piping.
- Transportation – Tank trailers, ocean-going tankers, barges.
- Pulp & Paper – Pulp digesters
- Power Industry – Feedwater heaters, coolers, flue gas scrubbers.
- Marine Service – Sea water piping, pumps.
|Description||duplex steel plate S31803|
ASTM A240, JIS G4304, G4305, GB/T 4237, GB/T 8165,
BS 1449, DIN17460, DIN 17441
|Width||500mm,1000mm,1220mm, 1250mm,1500mm,2000mm or be required|
or be required
a) General service industries (petroleum, food, chemical,
paper, fertilizer, fabric, aviation and nuclear)
b) Fluid, gas and oil transport
c) Pressure and heat transmission
d) Construction and ornament
e) Boiler heat exchangers
Exportstandardpackage:bundled wooden box or be required;
The inner size of container is below:
We will packing as the factory, and reach the stander of export.
Or as the customer request. In addition,
We will make the products with good surface protection.
|Delivery time||Normally according to the order quantity|
Europe,South America, Africa ,Oceania ,such as :
Singapore,and so on
|Price term||FOB CIF CFR CNF etc|
|Payment||T/T, L/C, and Western Union|
3. Chemical Composition and mechanical character
Duplex 2205 : Chemical Specification of Alloy 2205
Duplex 2205 : Basic Properties of Alloy 2205 - Mechanical
|0.2% Proof Stress (N/mm2 ) [ksi] minimum||450 [65.2]|
|Ultimate Tensile Strength (N/mm2) [ksi] minimum||760 [94.2]|
|Elongation (%) minimum||25|
|Charpy V-notch Impact at ambient Temp (J) [ft.lb]||80min [59min]|
|Charpy V-notch Impact at -46°C (J) [ft.lb]||45av, 35min [33av, 25.8min]|
|ASTM G48A Corrosion test at 40°C||No pitting and weight loss <4.0 g/m2|
|Ultrasonic Testing||According to ASTM A388|
|Microstructure||Microstructure certified free from grain boundary carbides, sigma,
chi and laves phases|
Duplex 2205 : Physical Properties of Alloy 2205
|Young’s Modulus (N/mm2)||190 x 103|
|Specific Heat, 20°C (J.Kg-1.°K-1)||400|
|Specific Electrical Resistance, 20°C (µO.m)||0.85|
|Thermal conductivity, 20°C (W.m-1.°K-1)||15|
|Mean coefficient of thermal expansion, 20-100°C (°K-1)||11 x 10-6|
4.Shipping and Packing
Contract Person:Mr Gao Ben