Pipe-Lok Vales & Fittings Company delivers precision-engineered instrumentation fittings and valves trusted for reliability, safety, and performance in industrial applications with a strong focus on engineering excellence and quality control.
Duplex 2205 combines a balanced austenitic-ferritic microstructure to deliver roughly twice the yield strength of standard austenitic stainless steels together with excellent resistance to chloride pitting and stress corrosion cracking, ideal for VCR fittings in aggressive chloride-bearing process streams.
Duplex stainless steel with a balanced ferritic-austenitic structure providing high strength and strong resistance to localized corrosion.
| Element | Weight Percentage (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Chromium (Cr) | 22.0 - 23.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 3.0 - 3.5 |
| Nitrogen (N) | 0.14 - 0.20 |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.020 max |
| Iron (Fe) | Balance |
*Composition limits are as per the applicable ASTM/ASME/UNS specification; actual limits may vary depending on product form.
Duplex 2205 offers close to double the strength of standard 316L stainless with excellent resistance to stress corrosion cracking.
| Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 620 MPa min |
| 0.2% Yield Strength | 450 MPa min |
| Elongation | 25% min |
| Hardness | 293 HB max |
| Density | Approx. 7.8 g/cm³ |
*Mechanical requirements depend on product form, heat treatment and applicable ASTM/ASME specification. Confirm final values against the material specification used for the VCR fitting component.
High-performance material specifications for our complete VCR Fittings range.
Engineered for demanding fluid and gas-handling systems where leak-tight sealing, corrosion resistance and long service life are essential.
Suitable for offshore platforms, pipelines, production systems and high-pressure installations.
Reliable performance for chemical processing, refining and aggressive process environments.
Ideal for seawater systems and offshore equipment where chloride corrosion resistance is critical.
Used in corrosive process lines and chemical handling systems requiring dependable containment.
Suitable for high-pressure process systems and auxiliary equipment in power plants.
Excellent for seawater desalination and industrial water treatment systems.