Duplex Steel S32205 Plates are a type of stainless steel sheet known for its corrosion resistance, high strength and excellent flexibility. Their unique chemical composition makes them corrosion-resistant, even in harsh environmental conditions. This blog post will closely examine the composition, physical and mechanical properties, uses, heat treatment and corrosion resistance of the Duplex S32205 Sheet Plate.
What is Duplex S32205 Sheet Plate?
Duplex stainless steel S32205 Sheet Plate is a type of stainless steel alloy composed of 22% chromium, 5-6% nickel and 3% molybdenum. Due to its two-phase microstructure, the duplex plate provides excellent corrosion resistance, durability and strength. Compared with other grades of stainless steel, it offers superior stress corrosion cracking resistance and higher toughness and ductility. It’s perfect for structural applications in marine engineering or chemical processing industries.
Duplex S32205 Sheet Plate Composition
Duplex S32205 Sheet is a type of austenitic-ferritic stainless steel sheet. It is composed of a blend of around 22% chromium, 5-6% nickel, and 3% molybdenum in addition to nitrogen. Nitrogen gives this alloy better corrosion resistance than standard austenitic-ferritic stainless steels, even in chloride and hydrogen sulfide.
|
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 |
Duplex S32205 Sheet Plate Physical Properties
Duplex Steel S32205 Plates have a 7.8 g/cm³ density and a melting point of 1350°C. The thermal conductivity of this alloy is lower than that of austenitic stainless steel but higher than that of ferritic steel. 2205 duplex stainless steel plate also has a coefficient of thermal expansion lower than duplex steel. This makes them suitable for use in cryogenic environments.
Duplex S32205 Sheet Plate Mechanical Properties
Duplex S32205 Plate has excellent mechanical properties. They have yield strength of about 450 MPa, with a tensile strength of about 620 MPa. They have a high elongation percentage of up to 25%, which makes them suitable for applications that require forming, bending and welding.
|
Grade |
Tensile Str |
Yield Strength |
Elongation |
Hardness |
|
|
Rockwell C (HR C) |
Brinell (HB) |
||||
|
2205 |
621 |
448 |
25 |
31 max |
293 max |
Duplex S32205 Sheet Plate Uses
S32205 Duplex Sheet Plate has various applications, including chemical processing and petrochemical processing, marine applications, pulp and paper production, and oil and gas refining. Their excellent mechanical and corrosion resistance properties suit them for high-pressure vessels and marine applications such as offshore oil rigs.
Duplex S32205 Sheet Plate Heat Treatment
The heat treatment of the Duplex S32205 Sheet Plate is an annealing process. The recommended temperature range for annealing is between 1020°C to 1100°C. This helps improve the sheet plate’s strength and toughness while reducing residual stress.
Duplex S32205 Sheet Plate Corrosion Resistance
Duplex S32205 Sheet Plate is highly resistant to general corrosion, pitting, crevice corrosion, and stress corrosion cracking. This makes them ideal for use in extreme environments where corrosion resistance is essential. They are particularly resistant to chloride-induced stress corrosion cracking (SCC).
Conclusion
Duplex S32205 Sheet Plate is a versatile, durable stainless steel sheet with excellent corrosion resistance, high strength, and flexibility. Its unique blend of chemical composition gives this material a considerable advantage compared to other types of stainless steel sheets. The mechanical and corrosion resistance properties of Duplex S32205 Sheet Plate make them suitable for various applications in the chemical, petrochemical, oil and gas, and marine industries. Understanding the composition, physical and mechanical properties, uses, heat treatment, and corrosion resistance of the Duplex S32205 Sheet Plate can help determine if this material suits your application.
Meet Bhavesh, a seasoned blogger with a wealth of knowledge and experience. From metal products manufacturing to retail, Bhavesh has a diverse background in various industries and is dedicated to sharing his insights and expertise with readers.
