Duplex 2205

Duplex 2205 Sheet
Duplex 2205 Sheet
Duplex 2205 Rod
Duplex 2205 Rod
Duplex 2205 Strip
Duplex 2205 Strip
Duplex 2205 Coil
Duplex 2205 Coil
Duplex 2205 Bar
Duplex 2205 Bar
Duplex 2205 Pipe
Duplex 2205 Pipe
6 Products Found.

The Ins and Outs of Duplex 2205: A Comprehensive Overview

You’re diving into a smart guide about Duplex 2205. Builders use it a lot. This guide will tell you all about how Duplex 2205 is made and what makes it special. So, get ready to learn a bunch!

Understanding Duplex 2205

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What is Duplex 2205?

Duplex 2205 signifies one of stainless steel grades. With chromium, molybdenum, and nitrogen, the makeup is strong. Corrosion stands no chance. Also, the blend of these elements lends it high strength.

Origin and History of Duplex 2205

Your journey into the past brings you to 1970. Outokumpu, a Finnish company, brought duplex stainless steel 2205 to life. With a goal of high resistance against corrosion, 2205 duplex was a win. It merged the best of austenitic and ferritic steel.

Now, duplex 2205 stainless steel marks a milestone in the realm of corrosion-resistant metals. Its legacy is notable in bridges, oil rigs, and chemical tanks, proof of its stellar performance.

The Characteristics of Duplex 2205

Physical and Chemical Properties

High Strength

Known for toughness, Duplex 2205 boasts high strength. That strength results from the 2205 duplex composition.

Corrosion Resistance

Duplex 2205 shines in corrosion resistance. Thanks to its 2205 duplex stainless steel composition, it withstands harsh environments. Whether exposed to seawater or acidic substances, it holds firm.


Even with its high strength, Duplex 2205 remains ductile. Its ductility stands at 25%. That means it can bend and stretch without breaking, making it versatile.


Welding Duplex 2205 doesn’t have to be a hassle. With a duplex 2205 welding rod, you can achieve strong, neat welds.

Thermal Conductivity

The thermal conductivity of Duplex 2205 is remarkable. A high conductivity of 19.1 W/mK lets it swiftly disperse heat. This trait aids in environments where heat management is crucial.

Electrical Resistivity

The electrical resistivity of Duplex 2205 sits at 0.085×10^-6 Ω.m. Despite not being a superconductor, it handles electricity safely and efficiently.

Magnetic Permeability

Unlike most stainless steels, Duplex 2205 has a magnetic permeability. That means it can attract and hold a magnetic field, broadening its use cases.

Oxidation Resistance

The super duplex 2205 exhibits excellent oxidation resistance. Even in temperatures up to 1020°F, it resists damage from oxidation.

Stress-Corrosion Cracking Resistance

Stress-corrosion cracking can ruin materials. Yet, 2205 duplex stainless resists such cracks. It’s reliable even under high-stress conditions.

Pitting Resistance

Pitting can be a serious issue. Fortunately, the 2205 duplex stainless steel bolts resist pitting.

Creep Resistance

The creep resistance of Duplex 2205 is admirable. In high-stress, high-temperature conditions, it resists deformations known as “creeping”.

Fatigue Strength

Fatigue can weaken materials over time. But the 2205 duplex round bar excels in fatigue strength. It remains dependable even after repeated stress.

Fracture Toughness

Duplex 2205’s fracture toughness is commendable. It withstands significant force without cracking, signifying its top-notch quality.

Mechanical Properties

Tensile Strength

2205 duplex stainless steel machining endows it with high tensile strength. On average, that’s about 800 Megapascal. You’ll find this trait crucial in handling high-pressure situations.

Yield Strength

2205 duplex stainless steel mechanical properties include impressive yield strength. It’s around 450 Megapascal.


With 2205 duplex stainless steel pipe, you’ll notice its elongation feature. Around 25%, give or take. Now, that’s impressive! High elongation helps the steel to stretch under force, without breaking.


The hardness of the 2205 duplex stainless steel plate is another critical characteristic. It boasts a Brinell hardness of 293. Such hardness ensures its resistance to deformation under load.

Shear Modulus

2205 duplex stainless steel properties showcase a commendable shear modulus. Around 75 Gigapascal. The higher the shear modulus, the better the material resists shape changes when a force is applied.

Bulk Modulus

2205 duplex stainless steel suppliers often highlight the product’s bulk modulus. The bulk modulus for Duplex 2205 sits at 140 Gigapascal. Such a high value means better resistance to volume change under pressure.

Poisson’s Ratio

The 2205 duplex stainless steel tubing boasts a Poisson’s ratio of 0.3. This ratio means when you stretch the steel, it becomes thinner in the perpendicular direction. The lower the value, the less it contracts.

Charpy Impact

Known for its Charpy impact, Duplex 2205 has a value of 450 Joules. This measure shows the material’s ability to absorb impact energy.

Vickers Hardness

With the Vickers Hardness of 2205 duplex stainless steel vs 316 being 293, Duplex 2205 proves superior. This hardness value implies superior resistance to indentation.

Brinell Hardness

Duplex 2205 offers a Brinell hardness of 293. The higher the hardness, the more it resists penetration.

Rockwell Hardness

The Rockwell hardness. For Duplex 2205, it stands around 31 HRc. A higher Rockwell hardness signifies a stiffer material.

Duplex 2205 Density and Its Importance

One notable trait is the density of 2205 duplex stainless steel, a robust 7.8 grams per cubic centimeter. Remember, density ties directly to the metal’s strength. Higher density equals higher toughness.

Furthermore, its resilience and toughness surpass that of traditional stainless steel.

Composition of Duplex 2205

Moving on to the duplex 2205 chemical composition, the mix is precise. You’ll find about 22% chromium, 3% molybdenum, and 5-6% nickel. Also, lesser amounts of other elements like nitrogen and manganese exist.

Each element adds unique properties to the final product, making Duplex 2205 versatile. Chromium provides corrosion resistance, while molybdenum enhances strength.

Nickel adds ductility, and nitrogen boosts toughness.

The hardness of Duplex 2205

Exploring the hardness aspect, Duplex 2205 performs excellently. One crucial comparison includes duplex 2101 vs 2205.

With a Brinell hardness number between 293-217, it surpasses 2101 by a decent margin.

That means it can withstand various chemical environments, significantly enhancing its usefulness.

It’s important to note the difference between alloy 20 vs duplex 2205 as well. Duplex 2205 provides superior hardness and toughness, outperforming Alloy 20, especially in harsh environmental conditions.

Property Duplex 2205 316L Stainless Steel 304 Stainless Steel Carbon Steel Aluminum Alloy Titanium Alloy
Tensile Strength (MPa) 620-930 485-515 505-860 370-500 100-310 830-1170
Yield Strength (MPa) 450 170-205 205-310 215-275 30-275 785-1100
Elongation (%) 25 50 40-85 15-30 12-25 10-15
Hardness (Brinell) 293 149-216 123-212 120-187 20-124 120-330
Thermal Conductivity (W/m•K) 19 16.2 16.2 51.9 120-180 6.7
Corrosion Resistance High High Moderate Low Moderate High
Magnetic Permeability (μ) 1.4 1.01 1.008 100-500 1.000022 1.00005

Table on The Characteristics of Duplex 2205

Duplex 2205 versus Other Materials

Duplex 2205 vs. 316 Stainless Steel

The duplex 2205 material, made of iron, chromium, and nickel, surpasses 316 stainless steel in performance. Boasting a density of 7820 kg/m3, this alloy has impressive strength. This material outperforms 316 stainless steel.

Duplex 2205 vs. Alloy 20

Compared to Alloy 20, Duplex 2205 excels in terms of durability and corrosion resistance. Duplex 2205 fasteners, renowned for their strength, resist wear and tear better than Alloy 20 counterparts. Notably, the duplex 2205 composition is a perfect balance of ferrite and austenite.

Duplex 2205 vs. Duplex 2304

While Duplex 2304 is laudable, Duplex 2205 wins in terms of overall performance. The duplex 2205 mechanical properties, including higher yield strength and hardness, beat those of Duplex 2304. Duplex 2205 pipe fittings also offer more reliable service under tough conditions.

Duplex 2205 vs. Duplex 2507

Duplex 2205 and Duplex 2507 both serve industrial needs, yet differences exist. Duplex 2205 flanges, for instance, offer solid performance but Duplex 2507 tends to provide higher corrosion resistance.

Duplex 2205 vs. Duplex 2101

Duplex 2205 and Duplex 2101 differ subtly in composition and performance. With Duplex 2205’s superior material properties, including higher tensile strength, applications are more varied.

Choosing between the two hinges on project specifics, yet Duplex 2205 frequently emerges as a trusted choice.

Forms of Duplex 2205

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Duplex 2205 Round Bar

Strength and precision define Duplex 2205 round bar. Indeed, builders love it for bridges and buildings. The round bar resists rust very well. Also, duplex 2205 properties shine through in harsh weather. Industries need 1 to 8” of diameter.

Furthermore, the length of the bar ranges from 1 to 20 feet. Factories and plants also use this round bar. There’s chromium, nickel, and molybdenum in the round bar.

Duplex 2205 Plate

When strength is a must, go for the Duplex 2205 plate. This plate shows off amazing toughness. Additionally, duplex 2205 plate suppliers offer many sizes. The thickness starts from 4 mm up to 76 mm. Width ranges from 55 mm to 3000 mm.

Construction and oil industries use it a lot. Furthermore, the plate has a mix of chromium, nickel, and molybdenum. So, corrosion stays away. Also, Duplex 2205 plate works in super hot places.

Duplex 2205 Pipe

The duplex 2205 pipe price is right for strength and durability. For sure, oil and gas companies love it. The pipe’s thickness is 0.3 mm to 50 mm.

Additionally, the length varies from 1 to 12 meters. Chemical plants find these pipes very useful too. Inside, there’s chromium, nickel, and molybdenum. These make the pipe fight rust. The duplex 2205 pipe handles high pressure with ease.

Duplex 2205 Tube

The Duplex 2205 tube boasts in strength and rust-fighting power. Furthermore, the tube’s wall thickness ranges from 0.4mm to 16mm. The outer diameter is between 6mm and 250mm. Many industries pick the Duplex 2205 tube for hard tasks.

Duplex 2205 Bolts and Fasteners

Bolts and fasteners of Duplex 2205 mean serious business. In short, duplex 2205 suppliers offer sizes M02 to M33. These bolts fight rust due to chromium, nickel, and molybdenum. So, the salty sea cannot harm them. The Duplex 2205 fasteners and bolts handle heavy loads too.

Duplex 2205 Flanges and Fittings

Count on Duplex 2205 flanges and fittings for robustness. Duplex 2205 stainless steel equivalent ensures reliability. The flange sizes start from ½” up to 48”. The fittings have sizes ranging from ½” to 8”.

Attribute Duplex 2205 Round Bar Duplex 2205 Plate Duplex 2205 Pipe Duplex 2205 Tube Duplex 2205 Bolts and Fasteners Duplex 2205 Flanges and Fittings
Material Composition 22% Cr, 5.3% Ni, 3.2% Mo, 0.16% N 22% Cr, 5.3% Ni, 3.2% Mo, 0.16% N 22% Cr, 5.3% Ni, 3.2% Mo, 0.16% N 22% Cr, 5.3% Ni, 3.2% Mo, 0.16% N 22% Cr, 5.3% Ni, 3.2% Mo, 0.16% N 22% Cr, 5.3% Ni, 3.2% Mo, 0.16% N
Typical Applications Shafts, gears, valves Structural applications, pressure vessels Oil & gas pipelines, chemical transport Heat exchangers, pressure tubes Construction, machinery assembly Piping systems, pressure retention
Available Diameters (mm) 6 to 500 Not applicable 10 to 600 6 to 250 M6 to M100 (Bolt Diameter) DN15 to DN600 (Nominal Diameter)
Available Thicknesses (mm) Not applicable 3 to 150 SCH 5 to SCH 160 (Pipe Schedule) 0.5 to 20 Not applicable Class 150 to Class 2500 (Pressure Rating)
Tensile Strength (MPa) 620 – 880 620 – 880 620 – 880 620 – 880 620 – 880 620 – 880
Formability Moderate Good Moderate Moderate Low (due to small dimensions) Moderate
Corrosion Resistance Excellent Excellent Excellent Excellent Excellent Excellent

Table on Forms of Duplex 2205

Understanding the Manufacturing Process of Duplex 2205

  • Alloying:Alloy creation sets the stage for duplex 2205 uns. Here, chromium, nickel, and molybdenum combine, with precise control. For a perfect mix, 22% chromium, 5.7% nickel, and 3.1% molybdenum join. Precision ensures strength and resistance, vital for duplex 2205 uns number.
  • Melting:High heat transforms the alloy into liquid form. The process requires temperatures of around 2,550°F. Then, this molten blend, the base for duplex 2205 vs 2507, solidifies into slabs.
  • Casting:Molds shape the duplex 2205 liquid alloy into solid objects. With accuracy, high-tech machines pour the molten blend into casts.
  • Hot-Rolling:When compared, duplex 2205 vs 316 ss demonstrates superior hot-rolling capabilities. Heated slabs pass through rollers, reducing their thickness. Temperature control is key here, usually around 2,200°F.
  • Cold-Rolling:To increase strength, the hot-rolled product cools and undergoes more rolling. This step determines the duplex 2205 vs 316 ss cost because it requires less energy.
  • Heat-Treatment:To optimize properties, heat-treatment occurs. The material is heated to specific temperatures, then rapidly cooled. This step enhances the duplex 2205 yield strength and overall resilience.
  • Machining:Duplex 2304 vs 2205 often comes down to how well the material machines. Machining turns a slab into a final product, like a pipe or valve.
  • Welding:During fabrication, pieces of duplex 2507 vs 2205 are often welded together. To avoid damaging the metal, careful control of temperature is required.
  • Surface Treatment:After welding, surface treatment restores the protective oxide layer. This process increases corrosion resistance, a key advantage of duplex alloy 2205.
  • Cutting:Using lasers, water jets, or other means, the duplex ss 2205 steel is cut to the desired shape.
  • Shaping:Next, you shape the cut pieces. They could become the tubes, sheets, or bars you find in the duplex stainless steel 2205 price per kg.
  • Hardening:For further strength, a hardening process takes place. By increasing duplex steel 2205 resistance to wear and tear, the lifespan extends.
  • Annealing:After shaping and hardening, annealing eliminates stress in the steel. Thus, the product maintains its optimal properties over time.
  • Quality Inspection:Each duplex 2205 piece undergoes rigorous quality inspection. Experts check for defects, ensuring your final product meets all industry standards.

Welding Duplex 2205

Overview of Welding Duplex 2205

Understanding how to weld 2205 duplex stainless steel needs precise attention. Known for its strength, Duplex 2205 resists corrosion excellently. With 22% chromium, 3% molybdenum, and 5-6% nickel, it’s robust and versatile.

Welding Rod for Duplex 2205

Welding duplex 2205 involves specific rods. E2209 is commonly preferred, offering compatibility and strength. Also, a controlled interpass temperature below 300°F assures high-quality welds.

Welding Wire for Duplex 2205

For welding wire for 2205 duplex stainless steel, ER2209 exhibits superior performance. A low carbon deposit prevents carbide precipitation, enabling the formation of high integrity welds.

Challenges and Solutions in Welding Duplex 2205

  • Porosity:Bubbles appearing in welds represent porosity, often resulting from contaminants. Clean materials prior to welding 2205 duplex to prevent this issue.
  • Cracking:Avoid excessive heat when welding 2205 duplex stainless steel to prevent cracking.
  • Distortion:Use of proper clamps and jigs prevents distortion during turning duplex 2205 operations.
  • Oxidation:Shielding gas selection is critical. Use argon for GTAW and a mix of argon and helium for GMAW.
  • Undercutting:Proper control of heat and travel speed can minimize undercutting.
  • Spatter:Adequate voltage control is essential in avoiding spatter.
  • Incomplete Fusion:Sufficient heat input and correct travel speed ensure complete fusion during welding duplex 2205 to 316 stainless steel.
  • Incomplete Penetration:Proper joint design and correct electrode angle are key to achieving complete penetration.
  • Overlapping:Ensure the correct welding process and technique to prevent overlapping.
  • Tungsten Inclusions:Use of correct GTAW parameters is crucial in avoiding tungsten inclusions in the weld.

Machining Duplex 2205

Overview of Machining Duplex 2205

Among the most versatile materials, 1.4462 duplex 2205 stands out. Possessing equal parts austenite and ferrite, its dual-phase structure enhances strength.

Resistant to stress corrosion, pitting, and cracking, the 2205 duplex’s robustness makes it ideal for severe environments.

Duplex 2205 Stainless Steel Machining Techniques

  • Turning:Accurate turning of 2205 duplex bar involves high-speed steel tooling and rigid machines. Tools need sharp edges to cut the hard exterior layer efficiently.
  • Drilling:High-speed drilling of 2205 duplex needs constant feed rates. Cooling and lubricating should be provided to prevent overheating.
  • Grinding:In grinding, the hard surface of the 2205 duplex ss demands suitable grinding wheels.
  • Threading:2205 duplex stainless steel bar is ideal for threading applications. Coolant application is necessary for smooth processes.
  • Tapping:When tapping 2205 duplex, using spiral point or spiral flute taps is a good practice.
  • Reaming:For reaming operations, choosing a cobalt or carbide reamer is recommended.
  • Boring:For boring tasks, a steady, uniform cut is important. The cut’s smoothness depends on tool sharpness and a constant feed rate.
  • Honing:Honing of 2205 duplex demands a slow and steady approach. A high level of surface finish can be achieved.
  • Broaching:Broaching is rarely done on duplex 2205. If necessary, strong, sharp tools should be used for smooth cuts.
  • Sawing:Sawing duplex 2205 can be achieved with high-speed steel blades. Lubrication is vital to extend blade life.
  • Punching:In punching operations, high-power machinery and sharp tooling are needed.
  • Shearing:Shearing of duplex 2205 needs robust machinery due to its high strength. Sharp blades ensure clean cuts.
  • Laser Cutting:When laser cutting duplex 2205, a continuous jet of gas aids in the melting process.
  • Waterjet Cutting:For waterjet cutting, high-pressure water mixed with an abrasive material is used. It enables precision cutting without thermal distortion.
  • EDM:For Electrical Discharge Machining (EDM), the duplex 2205 should be clean. It ensures efficient electrical conduction for precise machining.

Challenges and Solutions in Machining Duplex 2205

  • Tool Wear:In machining 2205 duplex stainless steel sheet, tools wear faster. Sharp cutters ensure proper chip flow, leading to less tool wear.
  • Work Hardening:2205 duplex steel has rapid work hardening. Thus, controlling the work speed becomes crucial for successful machining.
  • Heat Generation:Heat spikes during 2205 duplex tubing processing. Proper cooling is needed to manage the heat and improve lifespan.
  • Surface Finish:A smooth surface finish is achievable in 2205 super duplex stainless steel. With right tools and techniques, desirable finish is attained.
  • Chip Control:In acero inoxidable duplex 2205, chip control is essential. Correct machine settings help in better chip breakage and control.
  • Dimensional Stability:Ensuring dimensional stability of alloy 2205 duplex bar is a challenge. Correct machining methods help maintain size and shape.
  • Tool Deflection:During machining, tool deflection is common. Optimum feed rates and speeds ensure less deflection, resulting in high-quality output.
  • Vibration:Vibration can affect the machining of Duplex 2205. Correct machine setup and firm workpiece clamping reduce vibrations.
  • Material Adhesion:Material adhesion is an issue during machining. But, with right cooling methods, this problem can be minimized.
  • Coolant Usage:Right use of coolant ensures effective machining. It helps in heat management and increases tool life.

Heat Treatment of Duplex 2205

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Importance of Heat Treatment

Proper heat treatment of Duplex 2205 can significantly enhance the steel’s properties. Such treatment alters the structure, leading to improved durability. Furthermore, heat treatments ensure that the Duplex 2205 ASTM standard is met, increasing its commercial value.

By following Duplex 2205 ASTM equivalent procedures, the yield strength can be heightened, providing stronger, more durable materials.

Heat Treatment Procedures for Duplex 2205


Annealing involves heating Duplex 2205 bar to around 1040°C, then cooling it. This enhances the bar’s machinability and boosts its corrosion resistance.


Normalizing Duplex 2205 involves heating it above its critical temperature. Next, cooling in the open air is done, enhancing hardness and strength.


To harden Duplex 2205 F51, heating and rapid cooling processes are involved. Thus, hardness and strength can increase significantly.


For Duplex 2205, tempering involves reheating hardened steel. Then, slow cooling happens.

Stress Relieving

Stress relieving reduces residual stress in Duplex 2205 filler wire. It’s achieved through careful heating and slow cooling.

Solution Treatment

Solution treatment involves heating Duplex 2205. A rapid cool down follows. This results in enhanced corrosion resistance.


Aging is a heat treatment method for Duplex 2205 ball valves. It involves heating and maintaining a specific temperature.


Quenching is the rapid cooling of Duplex 2205 ball valve. This process significantly enhances its hardness.

Precipitation Hardening

Involving heating and slow cooling, precipitation hardening can increase the yield strength of Duplex 2205.

Cold Work

Cold work involves altering the shape of Duplex 2205 without heating. This can greatly enhance its strength.

Impact of Heat Treatment on Duplex 2205 Properties

Heat treatment has a major impact on Duplex 2205’s properties. For instance, annealing can increase the machinability of the steel, beneficial in manufacturing.

Moreover, solution treatment increases Duplex 2205 corrosion resistance, an important attribute for marine applications. Aging, in contrast, improves the hardness of the steel, beneficial for abrasive environments.

Corrosion Resistance of Duplex 2205

Overview of Corrosion Resistance

Duplex 2205 steel shines in fighting rust. Half ferritic, half austenitic, Duplex 2205 specification includes 22% chromium and 5% nickel.

How Duplex 2205 Stands Up to Corrosion?


Small holes, or pits, can form on steel. Duplex 2205 fights pitting with high chromium, molybdenum, and nitrogen.


Crevices are tiny cracks. So, Duplex 2205 with 3.1% molybdenum fights crevice corrosion.

Stress-Corrosion Cracking

Worries about steel cracking? Duplex 2205’s clever blend kicks stress-corrosion cracking away.


Heat makes grains in steel. Duplex 2205 stays strong with a Duplex 2205 heat treatment at 1,900°F (1,040°C).


Two metals, one corrodes. Duplex 2205’s high chromium means less galvanic corrosion.


Water and wind wear down steel. Not Duplex 2205! Super strong, workers build floodgates and wind turbines with it.


Oxygen can be mean to steel. Duplex 2205’s 22% chromium keeps it safe.

Hydrogen Damage

Hydrogen sneaks into steel. Duplex 2205 keeps hydrogen out.

High-Temperature Sulfidation

Sulfur can be trouble at high heat. Yet, Duplex 2205 beats sulfur with nickel and chromium.

Duplex 2205 and Its Commercial Availability

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Duplex 2205 Price Trends

Duplex 2205 price trends shift due to global conditions. Steel grade saf 2205 duplex fluctuates with market changes. Trusted suppliers offer duplex saf 2205 at competitive prices.

Understanding the Cost Factors of Duplex 2205

  • Alloying Elements –Nickel and molybdenum are key elements in f51 duplex 2205. High prices of these elements increase overall cost.
  • Processing Costs –Forming inoxidable duplex 2205 involves costly processes. High-temperature forging and annealing affect the price.
  • Supply-Demand Dynamics –High demand for material 2205 duplex can drive up costs. Limited availability can also contribute to increased prices.
  • Quality Requirements –The superior strength of material duplex 2205 commands a higher price.
  • Market Conditions –Steel market fluctuations impact saf 2205 duplex pricing. Global trends and regional conditions factor into cost.
  • Transportation Costs –Shipping and handling costs affect final pricing. Distance, weight, and transport mode contribute to these costs.
  • Tariffs and Taxes –Import or export taxes impact the final cost. Trade agreements can affect these fees.
  • Currency Exchange Rates –The exchange rate directly influences the price. A stronger dollar can make importing more expensive.
  • Packaging and Handling –Proper packaging ensures quality delivery. Robust and secure packaging may increase overall costs.
  • Seller’s Margin –Suppliers add a margin to cover costs. This markup contributes to the final cost of duplex 2205.

Quality Assurance and Testing of Duplex 2205

Importance of Quality Assurance

Quality assurance remains pivotal for saf 2205 duplex stainless steel. Inspecting and assessing strength, toughness, and corrosion resistance is necessary.

Ensuring perfect performance is vital under various conditions. Documentation and strict control are integral parts of quality assurance.

Testing Techniques for Duplex 2205

  • Tensile Testing:Pulling forces examine the metal’s strength. You’ll find its breaking point and elongation percentage.
  • Hardness Testing:Determines resistance to deformation. A hard, small indenter pushes into the metal.
  • Impact Testing:Measures the material’s toughness. The test involves a swinging hammer and a notched specimen.
  • Bend Testing:Reveals the flexibility of the material. The test involves bending a specimen to a specified angle.
  • Fatigue Testing:Shows how the material withstands cyclic loading. Long-term durability comes under assessment here.
  • Creep Testing:Examines the deformation under a constant load over time. Important for long-term applications.
  • Microstructure Analysis:Examines grains and phases in the metal. Reveals the atomic arrangement and crystal structure.
  • Corrosion Testing:Evaluates the resistance to rusting. It checks the behavior in corrosive environments.
  • Non-Destructive Testing:Detects internal and surface defects. Testing doesn’t alter the metal’s properties.
  • Chemical Analysis:Checks the material’s composition. Ensures correct levels of chromium, nickel, molybdenum, and nitrogen.

Interpreting Test Results for Duplex 2205

Interpretation of test results determines the suitability of stainless steel 2205 duplex. With balanced properties, this alloy serves in severe conditions.

Application of Duplex 2205 in Various Industries

Oil and Gas Industry

In the oil and gas industry, super duplex stainless steel 2205 offers advantages. They include offshore platforms, heat exchangers, process piping, and separators.

Marine Industry

The marine industry prefers uns 2205 duplex for excellent performance. High resistance to seawater corrosion, excellent strength, and good weldability come handy. The applications include propeller shafts, rudders, and marine fasteners.

Construction Industry

The construction industry uses this duplex alloy for structures in harsh environments. Buildings near seasides, bridges, and other structures exposed to weather elements need strong materials. High strength and corrosion resistance make it an optimal choice.

Chemical Industry

The chemical industry often works with corrosive substances. Duplex 2205’s resistance to a wide range of chemicals makes it a preferred choice. It serves in reactors, heat exchangers, and storage tanks.

Maintenance and Care of Duplex 2205

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  • Cleaning:Regular upkeep with mild soap and water extends Duplex 2205 lifespan. Aim for once a month cleaning. Avoid abrasive cleansers.
  • Inspection:Perform monthly inspections on Duplex 2205. Look for signs of damage, rust, or wear. Replace worn parts promptly.
  • Surface Treatment:Passivation, a surface treatment process, enhances Duplex 2205’s corrosion resistance. Use nitric acid treatments for optimal results.
  • Storage:Store Duplex 2205 in a dry, cool environment. Keep the material away from harsh chemicals. Proper storage prevents corrosion.
  • Handling:Handle Duplex 2205 with clean gloves to prevent contamination. Never drag heavy materials over Duplex 2205 surfaces.
  • Repair:Address small damages on Duplex 2205 immediately. Use grade-matched filler materials for repairing. Proactive repairs prevent larger issues.
  • Corrosion Protection:Duplex 2205’s chromium content helps resist corrosion. Nevertheless, regular coating with anti-corrosion products adds an extra layer of protection.
  • Heat Treatment:Post-weld heat treatment isn’t necessary for Duplex 2205. Rapid cooling from above 1900°F to below 900°F prevents phase imbalance.
  • Machining:High-speed steel or carbide tooling ensures Duplex 2205’s effective machining. However, constant feeds and speeds prevent tool breakage.
  • Welding:Employ shielded metal arc welding for Duplex 2205. Use low heat input and interpass temperatures of below 300°F.
  • Installation:Duplex 2205 requires skilled workers for installation. Correct use of tools and proper procedures ensure its successful deployment.

Challenges and Limitations of Duplex 2205

Temperature Limitations

High temperature diminishes Duplex 2205’s strength. Over 600°F can cause degradation.


Duplex 2205’s production involves complex procedures. Industries need to evaluate cost-efficiency before choosing Duplex 2205.


Supplying Duplex 2205 can be challenging. Limited manufacturers result in low availability. So, obtaining Duplex 2205 requires careful planning.

Thermal Expansion

Duplex 2205 experiences thermal expansion. High temperatures cause changes in volume. Industries must consider thermal expansion during design and application.

Impact Toughness

Despite high strength, Duplex 2205’s impact toughness decreases at sub-zero temperatures. Thus, it is not suitable for extremely cold environments.

Surface Finish

Applying surface finishes on Duplex 2205 is intricate. Precision and expertise are critical.

Heat Treatment

Duplex 2205 requires controlled heat treatment. Temperatures exceeding 1900°F can degrade properties. Manufacturers must ensure accurate temperature control.

Hydrogen Embrittlement

Duplex 2205 is susceptible to hydrogen embrittlement. Hydrogen atoms can lead to cracks. Therefore, prevention measures during processing are crucial.

Intergranular Corrosion

Improper heat treatment can cause intergranular corrosion in Duplex 2205. So, controlled heat treatments are vital to maintain integrity.

FAQs About Duplex 2205

Q: Is Duplex 2205 always more expensive than other steels?

A: Yes, Duplex 2205 tends to be costlier. Complex manufacturing procedures contribute to the higher cost.

Q: Does Duplex 2205 have unlimited temperature resistance?

A: No, Duplex 2205 does not have unlimited temperature resistance. High temperatures above 600°F can cause degradation.

Q: Is Duplex 2205 not suitable for cold forming?

A: No, Duplex 2205 can undergo cold forming. But, low temperatures affect its impact toughness negatively.

Q: Is Duplex 2205 available in all forms and sizes?

A: Yes, Duplex 2205 is available in different forms and sizes. But, availability might vary based on manufacturers.

Q: Is Duplex 2205 not suitable for high-stress applications?

A: Duplex 2205 has high strength. It is suitable for high-stress applications within its temperature and corrosion limits.


The guide shared heaps of info on Duplex 2205. You learned how tough and awesome this steel is. You also found out how people make things with Duplex 2205.

The steel fights rust and can be used for many jobs. Remember, good steel like Duplex 2205 helps build strong, lasting things. Now, for the best Duplex 2205, you should visit TuolianMetal and explore their top-notch offerings.

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Whether you need stainless steel materials for your business or fabrication projects, TuoLian is your best supplier. You can find all types, grades, and thicknesses based on your needs. Guaranteed that we provide the best quality at a reasonable cost.
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