2205 Stainless Steel

Duplex Stainless Steel 2205

Overview: 2205 Stainless Steel

2205 stainless steel, also recognized as duplex stainless steel alloy S32205 (S31803), boasts a composition of 22% chromium, 2.5% molybdenum, and 4.5% nickel-nitrogen alloy. This formulation endows the ss 2205 material with exceptional strength, impressive impact toughness, and robust resistance to both general and localized stress corrosion. Its yield strength significantly surpasses that of conventional austenitic stainless steels, enabling engineers to design lighter yet equally robust products, thereby offering a competitive edge over 316L. The 2205 alloy is particularly adept for applications within the temperature spectrum of -50°F to +600°F, although its suitability extends beyond this range with certain considerations, especially for welded structures.

What Is 2205 Stainless Steel

2205 Stainless Steel Advantages

Exceptional Strength

The yield strength of duplex 2205 is over twice that of conventional austenitic stainless steels, coupled with the requisite plastic toughness for effective molding. This allows for thinner constructions in tanks or pressure vessels, yielding cost reductions without sacrificing safety or efficacy.n environments where local corrosion is a risk, providing a durable solution in aggressive conditions.

Stress Corrosion Cracking Resistance

Duplex 2205 exhibits outstanding resistance to stress corrosion cracking, surpassing that of austenitic varieties, notably in chloride-rich environments. This resilience addresses a common vulnerability of austenitic stainless steels, offering a robust solution where stress corrosion is a concern.

Superior Corrosion Resistance

Regularly outperforming 316L austenitic stainless steel in various media, ss 2205 material shows enhanced corrosion resistance, with super duplex grades offering even greater protection. In certain environments like acetic and formic acid, it can substitute high-alloy austenitic stainless steels and corrosion-resistant alloys.

Local Corrosion Resistance

With better wear and corrosion resistance, including fatigue corrosion resistance, than its austenitic counterparts, duplex 2205 excels in environments where local corrosion is a risk, providing a durable solution in aggressive conditions.

Thermal Expansion

Featuring a lower coefficient of thermal expansion close to that of carbon steel, 2205 alloy facilitates seamless integration with carbon steel components, proving invaluable in creating composite plates or linings and carrying significant engineering benefits.

Energy Absorption

Under both dynamic and static load conditions, duplex 2205 showcases superior energy absorption capabilities, offering significant safety advantages during unforeseen incidents like collisions or explosions, thus underscoring its practical application value and overall resilience.

  • Heat exchangers, high-pressure containment vessels, elevated pressure pipelines, and chemical industry processing tanks;
  • Heat exchanger components, oil and gas transport pipelines;
  • Systems for wastewater management;
  • Bleaching devices, pulp and paper industry processing units, and materials handling setups;
  • Impellers, pressurized rollers, rotary axles, blades in environments demanding high strength and resistance to corrosion;
  • Transportation containers for maritime vessels or freight trucks;
  • Equipment utilized in the processing of food;
  • Various additional applications.

2205 Stainless Steel Application

2205 Stainless Steel Tags

Grade 2205, Type 2205, 1.4462, AISI 318LN, SUS 329J3L, Inox 2205, Acero 2205, UNS S32205, UNS S31803, Duplex 2205

Duplex 2205 Technical Sheet


2205 Stainless Steel Chemical Compositions Sheet

Grade Standard C Si Mn P S Ni Cr Mo N

2205 Stainless Steel Properties Sheet

Grade AISI/ASTM Yield Strength Rp0.2(N/mm²) Tensile Strength Rm(N/mm²) Hardness Elongation(%)
≤293 HB

Why Purchase Duplex 2205 from GHT

Reliable Stainless Steel Coil Inventory Assurance

Ever been in a bind due to an urgent need for substantial quantities of stainless steel coils, only to find your supplier’s inventory lacking? Such situations can disrupt your workflow and plans.

Our Advantage: With us, that scenario is a thing of the past.  Our inventory is consistently stocked to the brim, ensuring rapid fulfillment of even the largest orders, seamlessly aligning with your business timeline.

Tailored Stainless Steel Material Processing

You might have encountered situations where custom processing is needed, but finding the right supplier to meet your specific demands can be a challenge.

Our Advantage: Our robust processing capabilities are designed to cater to all your customization needs. Be it dimension adjustments, stainless steel finish surface treatments, or other specific requirements, we offer professional one-stop services.

Competitive Stainless Steel Pricing

When searching for stainless steel coil suppliers, pricing is often a key consideration. You might have had to compromise on your ideal supplier due to high costs.

Our Advantage: Through effective cost control and optimized procurement processes, we ensure competitive pricing. This means choosing us not only gets you high-quality products but also services that offer great value for money.

Varied Inventory Stainless Steel Coil Specifications

The quest for stainless steel coils with precise specifications can often lead to dead ends. Finding a supplier who understands and meets these unique requirements is crucial.

Our Advantage: Our inventory is a testament to diversity, encompassing a variety of materials, thicknesses, and widths. We pride ourselves on being able to meet your specific project needs with pinpoint accuracy.

Precision Stainless Steel Shearing Services

Accurate shearing is crucial for the use of stainless steel coils, but not all suppliers can offer such precision services.

Our Advantage: Our shearing services are both professional and efficient, ensuring precise cuts as per your requirements, guaranteeing that the products meet your exact specifications.

Looking For 2205 Supplier

Send us a message to discuss your 2205 stainless steel needs. We always reply within 24 hours.

How To Pack 2205 Stainless Steel Sheet & Coil

In GHT, all of our stainless steel coils are packaged as per international standard to prevent any possible damage or loss. By default, for quantity less than 1 whole compete coil (our MOQ is 5 tons), we will use woven plastic bag to cover SS coils and then fix them upon wooden pallet for further protection. We can also package the SS coils as per your special requirement, though this can incur extra cost.

In GHT, all of our stainless steel sheets are packaged as per international standard to prevent any possible damage or loss. By default, we will use brown paper to cover SS sheets and then bundle them together onto wooden pallets. At times, upon some customers’ requests, we will also apply reinforced package with extra metal straps fixed on the four corners, though this can incur extra cost. For enhanced customer experience, we also accept customized package as per your requests.

2205 Stainless Steel FAQs

In essence, duplex 2205 stainless steel surpasses 316 stainless steel in terms of corrosion resistance, strength, and toughness. Despite its higher cost, 2205 alloy is the preferable option for applications demanding outstanding corrosion resistance and enhanced mechanical properties. Conversely, if budget considerations are paramount and the required level of corrosion resistance is moderate, 316 stainless steel may present a viable alternative, balancing cost-efficiency with satisfactory performance.

The metallurgical profile of duplex 2205 stainless steel, specifically UNS S31803, showcases a balanced microstructure of 50% austenite and 50% ferrite after undergoing solution annealing at temperatures between 1900°F and 1922°F (1040°C to 1080°C). Elevating the heat treatment beyond 2000°F might tip the balance towards an increased ferrite content. Like its duplex counterparts, the 2205 alloy is prone to intermetallic phase formations, particularly when subjected to temperatures ranging from 1300°F to 1800°F, with the most rapid precipitation at around 1600°F. To ensure the integrity of the ss 2205 material and its freedom from detrimental intermetallic phases, adherence to ASTM A923 testing standards is crucial.

No. We have only good quality SS 2205 stainless steel sheet & coil .

We can provide 2205 stainless steel samples for you to check the quality. Sample is free and you just pay the freight.

Yes, we offer 2205 cut to size customization services for our 2205 stainless steel products based on your specific requirements, from thickness, width to grade. Just let us know your application.

Trial orders can be delivered within a week. For regular orders, it takes 7-30 days roughly.

Just Send Us What You Want To Know​

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