Product Details
Duplex 2205 is a two-phase, ferritic, austenitic 22% chromium, 3%
molybdenum, 5 to 6% nickel alloyed stainless steel. It is the most
widely used duplex stainless steel grade and is characterized by
high yield strength, double that of the standard austenitic
stainless steel grades. It also demonstrates good fatigue strength,
as well as outstanding resistance to stress corrosion cracking,
crevice, pitting, erosion, and general corrosion in severe
environments.
Chemical Properties:
| C | Mn | Si | P | S | Cr | Mo | Ni | N |
---|
2205 (S31803) | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.02 max | min: 21.0 max: 23.0 | min: 2.5 max: 3.5 | min: 4.5 max: 6.5 | min: 0.08 max: 0.20 |
2205 (S32205) | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.02 max | min: 22.0 max: 23.0 | min: 3.0 max: 3.5 | min: 4.5 max: 6.5 | min: 0.14 max: 0.20 |
| C | Mn | Si | P | S | Cr | Mo | Ni | N |
---|
Mechanical Properties:
Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (HB) MAX |
---|
2205 | 90 | 65 | 25 | 217 |
Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (HB) MAX |
---|
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
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
CORROSION RESISTANCE:
- Due to its high chromium, molybdenum, and nitrogen content, Duplex
2205 demonstrates superior corrosion resistant properties to 316
and 316L in most environments
- Chromium, molybdenum, and nitrogen content also provide high
resistance to pitting and crevice corrosion, even in oxidizing and
acidic solutions
- Resistant to chloride stress corrosion cracking and temperatures of
up to about 302°F (150°C)
- The presence of ferrite provides for good performance of Duplex
2205 in caustic environments
HEAT RESISTANCE:
- Similar to other duplex stainless steels, Duplex 2205 has good
oxidation resistance at high temperatures
- Subject to embrittlement when exposed to temperatures above 572°F
(300°C) even when exposed for short periods of time; Duplex 2205 is
therefore not recommended for use above 572°F (300°C)
Company Profile
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a
beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL)
,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy
excellent geographic location and convenient water, land and air
transportation. , Wuxi become the biggest stainless steel sheet
,plate and coil supply Centers in China. Jiangsu Mittel Steel
Industrial Limited was established in 1998 years. as one of the
largest stockists and manufacturers of industrial grade Stainless
Steel products and derivatives in Wuxi ,We keep a stock of 50000
tons every month, so we can delivery goods in fast time.
Our company supplies cold/hot-rolled stainless steel
sheets,stainless steel coils and stainless steel Plate to many
steel factories from athome and abroad, including Shanxi Taigang
Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS), Shanghai
BAO STEEL, Ningbo Baoxin and steel factories in Taiwan area,
Mainland Chinese and foreign countries and regions.
Our long-term business lines are
201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S
,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B,
BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also
engaged in the long-term supply of homemade & imported medium and
thick plates, galvanized and carbon steel products.
Adhering to the principle of "quality first and customer
foremost",our company will offer long-term service to nationwide
manufacturers of household appliances, elevators, tableware,
ornaments, tanks and machines. We can offer precise frosted
wiredrawing, 8K mirror finishing and skim board oil-abrasion of
various specifications at any time. The precisely-processed
products will meet your requirements for high quality. Our company
is a modern enterprise integrating distribution and storage.
If you are interested in any of our products or would like to
discuss a custom order, please feel free to contact us. We are
looking forward to forming successful business relationships with
new clients around the world in the near future.

