Product Details
1.4462 Stainless Steel Plate S32205 Duplex Steel NO.1 Finish Duplex
2205 Chemical Composition
DUPLEX 2205
ASTM A 182, A 240, A 276,
A 789, A 790, A 815
UNS S31803, S32205
NACE MR0175
Forms of Duplex 2205 Available at Mega Mex
- Sheet
- Plate
- Bar
- Pipe & Tube (welded & seamless)
- Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints,
long welding necks, socket welds, elbows, tees, stub-ends, returns,
caps, crosses, reducers, and pipe nipples)
- Welding Wire and Welding Electrode
2205 Duplex Overview
Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered
with the 300 series stainless steels. “Duplex” describes a family
of stainless steels that are neither fully austenitic, like 304
stainless, nor purely ferritic, like 430 stainless. The structure
of 2205 duplex stainless steel consists of austenite pools
surrounded by a continuous ferrite phase. In the annealed
condition, 2205 contains approximately 40-50% ferrite. Often
referred to as the work horse grade, 2205 is the most widely used
grade in the duplex family of stainless steels.
The advantage of a duplex structure is that it combines the
favorable qualities of a ferritic alloy (stress corrosion cracking
resistance and high strength) with those of an austenitic alloy
(ease of fabrication and corrosion resistance).
Usage of 2205 Duplex stainless steel should be limited to
temperatures below 600° F. Extended elevated temperature exposure
can embrittle 2205 stainless.
Corrosion Resistance
2205 duplex stainless steel is a cost effective solution for many
applications where the 300 series stainless steels are susceptible
to chloride stress corrosion cracking. Stress corrosion cracking
occurs when stainless steels are subjected to tensile stress, while
in contact with solutions containing chlorides. Increasing
temperatures also increase the susceptibility of stainless steels
to stress corrosion cracking.
The combination of chromium, molybdenum and nitrogen convey the
good resistance of 2205 to chloride pitting and crevice corrosion.
This resistance is extremely important for services such as marine
environments, brackish water, bleaching operations, closed loop
water systems and some food processing applications. The high
chromium, molybdenum and nitrogen contents of 2205 provide
corrosion resistance superior to common stainless steels, such as,
316L and 317L in most environments.
Chemical Composition, %
Cr | Ni | Mo | C | N |
---|
22.0-23.0 | 4.50-6.50 | 3.00-3.50 | .030 Max | 0.14-0.20 |
Mn | Si | P | S | Fe |
---|
2.00 Max | 1.00 Max | .030 Max | .020 Max | Balance |
What are the characteristics of Duplex 2205?
- High resistance to chloride stress corrosion cracking
- Resistance to chloride pitting and crevice corrosion
- Good general corrosion resistance
- Good sulfide stress corrosion resistance
- High Strength
- Good weldability and workability
In what applications is Duplex 2205 used?
- Chemical process vessels, piping and heat exchangers
- Pulp mill digesters, bleach washers, chip pre-steaming vessels
- Food processing equipment
- Oil field piping and heat exchangers
- Flue gas desulfurization equipment
ASTM Specifications
Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar | Flanges, Fittings & Valves |
---|
A790 | A790 | A789 | A789 | A240 | A276 | A182 |
Mechanical Properties
Specified Tensile Properties ASTM A240
Ultimate Tensile Strength, ksi Minimum
| .2% Yield Strength, ksi Minimum | Hardness Max. |
---|
95 | 65 | 31 Rockwell C |
Products Photo :
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.