Product Specification

UNS S32205 / Duplex 2205 Stainless Steel Round Bar / Alloy 1.4462 Custom Cutting in Length

Products Specification

UNS S32205 / Duplex 2205 Stainless Steel Round Bar / Alloy 1.4462 Custom Cutting in Length

Overview of UNS S32205 / Duplex 2205 Stainless Steel Round Bar

UNS S32205, also known as Duplex 2205 or Alloy 1.4462, is a highly corrosion-resistant stainless steel grade commonly used in demanding environments. Its unique duplex microstructure, which combines austenitic and ferritic properties, provides it with superior mechanical strength and outstanding resistance to corrosion, particularly in environments containing chloride and other aggressive substances. Duplex 2205 is widely used in industries such as chemical processing, marine applications, oil and gas, pulp and paper, and more.

Key Properties of Duplex 2205 Stainless Steel

• Corrosion Resistance: Duplex 2205 offers excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, making it ideal for harsh environments, especially those involving chloride exposure.

• High Strength: This alloy boasts high tensile and yield strength, approximately double that of regular austenitic stainless steels, offering a reliable option for applications requiring enhanced strength.

• Ductility: Duplex 2205 maintains good ductility and toughness, even at low temperatures.

• Improved Weldability: While duplex stainless steels are generally more difficult to weld than austenitic stainless steels, UNS S32205 is designed to have good weldability with proper procedures.

• Resistance to Oxidation: The alloy performs well in high-temperature environments and has excellent resistance to oxidation and scaling.

Composition of Duplex 2205 Stainless Steel (UNS S32205)

Duplex 2205 is primarily composed of iron, with significant amounts of chromium, nickel, and molybdenum, as well as small additions of nitrogen, manganese, silicon, and other elements. The typical composition includes:

• Chromium (Cr): 22%–23%

• Nickel (Ni): 4.5%–6.5%

• Molybdenum (Mo): 3%–3.5%

• Nitrogen (N): 0.08%–0.2%

• Manganese (Mn): 1.5%–2%

• Silicon (Si): 0.8% max

• Iron (Fe): Balance

This combination of elements contributes to the alloy's corrosion resistance, strength, and overall performance in a wide variety of applications.

Applications of Duplex 2205 Stainless Steel Round Bar

Duplex 2205 stainless steel round bars are used in a range of industries and applications where the benefits of high strength and corrosion resistance are needed:

1. Oil and Gas: Used in offshore platforms, chemical injection lines, and pipelines, Duplex 2205 offers superior resistance to chloride-induced stress corrosion cracking.

2. Chemical Processing: The alloy is resistant to many acids, including sulfuric and phosphoric acids, making it ideal for chemical reactors, heat exchangers, and storage tanks.

3. Marine Applications: Due to its resistance to seawater corrosion, Duplex 2205 is commonly used in shipbuilding, desalination plants, and other marine infrastructure.

4. Pulp and Paper Industry: Resistant to pulp mill chemicals and bleaching agents, it is used in equipment like digesters and bleach towers.

5. Water Treatment: Its corrosion resistance makes it suitable for desalination and water treatment plants.

6. Food Processing: With its hygienic properties and corrosion resistance, Duplex 2205 is often used in food processing equipment and systems.

Custom Cutting and Lengths

A significant advantage of Duplex 2205 stainless steel round bars is the ability to customize the length and size according to the specific needs of the application. Whether you require short-length bars for intricate components or long rods for larger industrial applications, customized cutting ensures that the material is perfectly suited for your project. Some typical custom cutting lengths include:

• Standard Lengths: Typically 1 meter, 3 meters, or custom lengths depending on the order.

• Custom Cutting: Bars can be cut to specific lengths, diameters, and shapes to meet the client's requirements.

• Precision Cutting: High-quality cutting services are offered using advanced tools and techniques to ensure precision and minimize material wastage.

Benefits of Custom Cutting for Duplex 2205 Stainless Steel Round Bar

1. Reduced Waste: Custom lengths allow for more efficient use of material, reducing scrap and waste during fabrication.

2. Cost-Effectiveness: Ordering material in the exact size needed can help reduce costs, particularly in industries where precision is key.

3. Efficiency in Production: Having bars pre-cut to the desired dimensions streamlines manufacturing and fabrication processes, saving time and labor costs.

4. Improved Quality Control: Custom cutting ensures that the material meets exact specifications, reducing the need for rework or adjustments during the fabrication process.

Common Sizes and Diameters of Duplex 2205 Round Bars

Duplex 2205 stainless steel round bars are available in a wide range of diameters to suit various applications. Common diameters include:

• 6mm

• 12mm

• 20mm

• 25mm

• 32mm

• 40mm

• 50mm

• 100mm

• Larger diameters are available upon request.

Advantages of Duplex 2205 Round Bars

1. Superior Mechanical Properties: Duplex 2205 has a high tensile strength, making it ideal for applications that require high mechanical strength.

2. Enhanced Corrosion Resistance: Due to its duplex microstructure, Duplex 2205 offers a combination of austenitic and ferritic properties that result in excellent corrosion resistance, especially in chloride environments.

3. Long-Term Durability: With proper care and maintenance, Duplex 2205 components offer excellent long-term durability, reducing the need for replacements and lowering overall maintenance costs.

4. Versatility: The round bars are versatile and can be used for a wide range of structural and mechanical applications, including machining into various forms such as shafts, bolts, nuts, and fasteners.

5. Weldability: Duplex 2205 has good weldability with the appropriate procedures, enabling it to be used in welded structures without sacrificing its mechanical properties or corrosion resistance.

Purchasing UNS S32205 Duplex 2205 Stainless Steel Round Bar

When purchasing Duplex 2205 stainless steel round bars, it’s essential to work with a reputable supplier who provides quality materials and offers customization options. Make sure to inquire about:

• Material Certification: Ensure that the material is certified with relevant industry standards, such as ASTM A276, ASTM A479, or EN 10088, to guarantee its quality.

• Quality Assurance: A supplier should offer comprehensive quality assurance, including testing for mechanical properties, chemical composition, and corrosion resistance.

• Delivery Times: Depending on the customization requirements, lead times may vary. Be sure to confirm delivery schedules when placing your order.

• Fabrication and Finishing: Some suppliers offer additional services like machining, polishing, or other forms of finishing that can help tailor the material to your specific needs.

Summary

UNS S32205 Duplex 2205 stainless steel round bars (Alloy 1.4462) offer an excellent balance of strength, corrosion resistance, and durability, making them ideal for a range of challenging applications, from marine environments to chemical processing. With the ability to customize the length and size of the bars, businesses can optimize their material usage, reduce waste, and enhance their manufacturing processes. Whether for structural components, fittings, or other specialized uses, Duplex 2205 round bars provide a versatile and reliable solution for demanding industries.