Alloy 20

Alloy 20 Products Overview

Alloy 20, also known as Carpenter 20, is a nickel-iron-chromium alloy designed for exceptional corrosion resistance, especially in sulfuric acid environments. It is widely used in chemical, pharmaceutical, and food processing industries.

Properties of Alloy 20
  • Corrosion Resistance: Excellent resistance to sulfuric acid and other aggressive chemicals.
  • Strength: High strength and durability for demanding applications.
  • Temperature Resistance: Maintains mechanical properties in high-temperature environments.
  • Weldability: Easily welded and fabricated using standard techniques.
  • Non-Magnetic: Suitable for applications requiring non-magnetic materials.
Applications of Alloy 20 Products
  • Chemical Industry: Used in reactors, heat exchangers, and piping systems due to its corrosion resistance.
  • Pharmaceutical Sector: Applied in pharmaceutical equipment exposed to acidic environments.
  • Food Processing: Suitable for food production applications requiring sanitary, corrosion-resistant materials.
  • Marine Industry: Resistant to seawater and other corrosive marine environments.
  • Power Generation: Used in condensers and heat exchangers in power plants.
Chemical Composition of Alloy 20 Products
Product Ni (%) Fe (%) Cr (%) Cu (%) Other (%)
Alloy 20 32-38 35-45 19-21 3-4 1-2
Mechanical Properties of Alloy 20 Products
Product Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HB)
Alloy 20 550-750 240-350 30-40 150-220
Specification Standards for Alloy 20 Products
Product Standard Description
Alloy 20 ASTM B463 Standard Specification for Welded Alloy 20 Plate, Sheet, and Strip
Alloy 20 ASTM B464 Standard Specification for Welded Alloy 20 Pipe