| C | Mn | P | S | Si | Ni | Cr | Mo | Cu | Nb+Ta | N | Fe |
|
≤0.07 |
≤2.00 |
≤0.045 |
≤0.035 |
≤1.00 |
32.00-38.00 | 19.00-21.00 | 2.00-3.00 | 3.00-4.00 | 8*C-1.00 | ... | Bal |
UNS N08020/Alloy20/2.4660 Chemical Composition
UNS N08020/Alloy20/2.4660 Mechanical Properties
|
Tensile Strength Mpa
|
Yield Strength Mpa
|
Elongation in 2 in %
|
|
≥550 |
≥240 |
≥30 |
UNS N08020/Alloy20/2.4660 Material Summary
UNS N08020 seamless pipe, also known as Alloy 20 pipe, is a high-nickel alloy renowned for its exceptional corrosion resistance and mechanical properties. It is a popular choice for applications in industries such as chemical processing, petrochemical, marine, pharmaceuticals, and food processing.
Key Characteristics:
- Corrosion Resistance: Alloy 20 exhibits excellent resistance to a wide range of corrosive environments, including sulfuric acid, phosphoric acid, nitric acid, and aqueous salt solutions.
- High Strength: This alloy offers superior strength and toughness, making it suitable for demanding applications where mechanical integrity is crucial.
- Good Fabrication: Alloy 20 is readily weldable and can be formed into various shapes and sizes without compromising its properties.
- Temperature Resistance: It maintains its mechanical properties and corrosion resistance over a wide temperature range, from cryogenic temperatures to elevated temperatures.
Typical Applications:
- Chemical Processing: Handling and transporting highly corrosive chemicals and solutions.
- Petrochemical and Refining: Components in refineries and processing plants exposed to harsh environments.
- Marine Industry: Heat exchangers, piping systems, and other components in marine environments.
- Pharmaceuticals: Equipment and piping used in the production and processing of pharmaceuticals.
- Food Processing: Applications where sanitary conditions and resistance to acids and salts are essential.
Standards and Specifications:
Alloy 20 seamless pipes are typically manufactured to meet industry standards such as:
- ASTM B729: Standard Specification for Seamless and Welded Austenitic Stainless Steel Pipe for High-Temperature Service
- ASME SB464: Seamless Nickel Alloy Pipe and Tube
- DIN 2.4660: Seamless Nickel Alloy Pipe and Tube
Available Forms:
Alloy 20 seamless pipes are available in various sizes, wall thicknesses, and lengths to meet specific application requirements.
