Duplex stainless steel is a kind of nickel-saving stainless steel composed of the grains of austenitic and ferritic stainless steel materials. Microstructure, so it has the best comprehensive performance of the two. It not only retains the advantages of both, but also makes up for the shortcomings of the two. Its strength, chloride stress corrosion and intergranular corrosion resistance are higher than that of austenitic stainless steel.Plastic toughness and weldability are greatly improved than ferritic stainless steel.
Duplex 2205 is a nitrogen-enhanced duplex stainless steel, which can resist intergranular corrosion, crevice corrosion and pitting corrosion, and has high impact toughness. It is the most widely used grade in the duplex stainless steel series.Stainless 2205 can be available in Bar, Pipe, Forging, Plate, Fasteners, Coil, Wire, Fitting, etc.
SAF 2507 is a super duplex stainless steel. The duplex structure makes it have excellent resistance to chloride stress corrosion cracking. It is especially suitable for corrosive environments, such as warm chlorinated seawater and acidic and chloride-containing media.Duplex 2507 can be available in Bar, Pipe, Forging, Plate, Fasteners, Coil, Wire, Fitting, etc.
Zeron 100 is a high-alloy super duplex stainless steel that is suitable for corrosive environments and has high resistance to strong alkalis and non-oxidizing acids. In addition, it has the characteristics of high strength, good impact, and good toughness.F55 Super Duplex can be available in Bar, Pipe, Forging, Plate, Fasteners, Coil, Wire, Fitting, etc.
1. Good resistance to chloride stress corrosion under low stress
2. Have good resistance to pitting corrosion
3. Corrosion fatigue and wear corrosion resistance
4. High strength and fatigue strength, good comprehensive mechanical properties
5. Good weldability, low thermal cracking tendency
6. Large thermal conductivity, small linear expansion coefficient
Duplex Stainless Steel mainly includes the following grades:
| Duplex Stainless Steels 2205 | Duplex Stainless Steels 2507 | Duplex Stainless Steels Zeron 100 |
All Duplex Stainless Steel can be processed into many forms and shapes to meet industrial needs. Wudenalloy.com provides the following forms of Duplex Stainless Steel:
| Bar |
| Sheet&Plate |
| Welded Pipe&Tube |
| Seamless Pipe&Tube |
| Pipe Fittings |
| Flanges |
| Custom Forgings |
| Fasteners |
| Welding Products |
| Coil |
| wire |
Due to its advantages of resistance to pitting and crevice corrosion, resistance to stress corrosion, fatigue corrosion, abrasion corrosion, and acid corrosion resistance, duplex stainless steel is mainly used in the following industries:
1. Paper industry
Duplex stainless steel is suitable for the manufacture of containers containing bleach and other corrosive liquids in the papermaking process
2. Desalination
Due to its high strength and corrosion resistance, duplex stainless steel has become the material of choice for evaporators in the desalination process
3. Chemical processing
In the industrial sulfuric acid environment, especially in the case of chlorine, the two-way stainless steel has better corrosion resistance and can relatively reduce the wall thickness
4. Transportation
In the production of chemical tankers, duplex stainless steel can reduce the weight of the hull, reduce energy consumption, and can resist corrosion.
5. Oil and gas
The development of duplex stainless steel with a PRE value greater than 40 makes it possible to manufacture pumps, pipes and manifolds that require high resistance to pitting and crevice corrosion.
Wuden Alloy focus on the field of nickel alloys for more than ten years,is a worldwide supplier of corrosion resistant alloy and other superalloy metals. We offer high-quality Hastelloy®, Incoloy®, Inconel®,Monel® ,Duplex Stainless Steel and other alloy materialat competitive prices . These materials are available in bar, sheet, pipe, and other forms to meet the needs of nearly any industrial or manufacturing application.
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