ASTM A815 S32205 Duplex 2205
ASTM A815 S32205 Duplex 2205 Pipe Fittings
ASTM A815 S32205 refers to Duplex Stainless Steel 2205 pipe fittings, engineered for applications requiring exceptional corrosion resistance, strength, and reliability. This duplex grade combines the benefits of both austenitic and ferritic stainless steels, offering superior mechanical properties and resistance to stress corrosion cracking.
Key Features
High strength and excellent corrosion resistance
Outstanding resistance to chloride pitting and crevice corrosion
Good weldability and formability
Suitable for aggressive environments, including marine and chemical processing
Available Types
ASTM A815 S32205 Chemical Composition
| Element | Composition |
|---|---|
| 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) | ≤ 2.0% |
| Others (Fe, C, Si, P, S) | Balance |
ASTM A815 S32205 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 620 MPa (90 ksi) |
| Yield Strength (0.2% Offset) | ≥ 450 MPa (65 ksi) |
| Elongation | ≥ 25% |
| Hardness (Brinell) | ≤ 290 HB |
| Impact Toughness | Excellent (at low temps) |
| Modulus of Elasticity | ~200 GPa (29,000 ksi) |
| Density | 7.8 g/cm³ |
Applications
Oil & Gas Industry
Chemical & Petrochemical Processing
Marine & Offshore Structures
Pulp & Paper Industry
Desalination Plants