| Products Name |
duplex stainless steel plate |
| Grade |
2205 / S31803 / S32205 / 1.4462 |
| Thickness |
Cold Rolled 0.6 - 3.0mm , Hot Rolled 3.0 - 80.0mm |
| Width |
1000mm 1219mm 1500mm 1800mm 2000mm |
| Standard Size |
1000*2000mm 1219*2438mm 1500*6000mm 1800*6000mm 2000*6000mm or cutting as request |
| Brand |
POSCO TISCO BAOSTEEL JISCO ESS |
| Other Grade |
304 316L 309S 310S 321 347 2507 904L 254SMO.etc |
| Service |
Cutting |
Duplex 2205 stainless steel (both ferritic and austenitic) is used extensively in applications that require good corrosion resistance and strength. The S31803 grade stainless steel has undergone a number of modifications resulting in UNS S32205, and was endorsed in the year 1996. This grade offers higher resistance to corrosion.
At temperatures above 300°C, the brittle micro-constituents of this grade undergo precipitation, and at temperatures below -50°C the micro-constituents undergo ductile-to-brittle transition; hence this grade of stainless steel is not suitable for use at these temperatures.
Duplex 2205, also known as UNS S32205, is a nitrogen-enhanced stainless steel. Users choose Duplex 2205 for its excellent corrosion resistance along with its high strength. It is important to note that Duplex 2205, offers much higher levels of corrosion resistance than most other austenitic stainless steels. Other benefits include:
- High resistance to pitting and crevice corrosion
- Excellent in most caustic environments
- Good weldability
Compositional ranges for grade 2205 duplex stainless steel.
| Grade |
|
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| 2205 (S31803) |
Min
Max
|
-
0.030
|
-
2.00
|
-
1.00
|
-
0.030
|
-
0.020
|
21.0
23.0
|
2.5
3.5
|
4.5
6.5
|
0.08
0.20
|
| 2205 (S32205) |
Min
Max
|
-
0.030
|
-
2.00
|
-
1.00
|
-
0.030
|
-
0.020
|
22.0
23.0
|
3.0
3.5
|
4.5
6.5
|
0.14
0.20
|
Mechanical Properties of duplex 2205 stainless steel
The typical mechanical properties of grade 2205 stainless steels are listed in the table below. Grade S31803 has similar mechanical properties to that of S32205.
| Grade |
Tensile Str
(MPa) min |
Yield Strength
0.2% Proof
(MPa) min |
Elongation
(% in 50mm) min |
Hardness |
| Rockwell C (HR C) |
Brinell (HB) |
| 2205 |
621 |
448 |
25 |
31 max |
293 max |
Grade Specification Comparison
Table 4 provides the grade comparison for 2205 stainless steels. The values are a comparison of functionally similar materials. Exact equivalents may be obtained from the original specifications.
| Grade |
UNS |
EN |
BS |
JIS |
SS |
| 2205 |
S31803/S32205 |
1.4462 |
X2CrNiMoN22-5-3 |
318S13 |
SUS329J3L |
2377 |
Application of duplex 2205 stainless steel
This unique mix of materials makes Duplex 2205 the right choice for a number of different critical applications in a range of industries, including:
- Chemical processing, transport, and storage
- Marine and Land cargo tanks
- Biofuel production
- Food processing
- Pulp and Paper manufacturing
- Oil and gas exploration and processing
- Waste management
- High chloride environments
Pictures of our products
About Our Company
1. Our company is a large company integrating wholesale of duplex steel and material processing.
2. Domestic partners: TISCO, BAOSTEEL, POSCO, JISCO, LISCO, TSINGSHAN, ESS.etc
3. Foreign Partners: COLUMBUS ,NAS,OUTOKUMPU,Nippon metal,NipponYakinKogyoNSC. etc.
4. Our duplex steel main products: 2205, 2507 duplex stainless steel, 254SMO austenitic stainless steel
5. The products are mainly used in: ship washing tower equipment, roadbed desulfurization tower, cooling tower, and many other industries.
6. Processing equipment: Imported from Italy, hot rolling machine, strip machine, high level water cutting machine, plasma cutting machine, large CNC milling machine, boring machine and many other imported processing equipment.
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