Alloy 20 is a nickel-iron-chromium based, austenitic alloy with excellent corrosion resistance in chemical environments containing sulfuric acid and many other aggressive media. This alloy is stabilized with niobium to resist intergranular corrosion. Alloy 20 may provide potential cost savings when carefully compared to higher nickel-based alloys, while out performing standard stainless steels.
The surface of the plate is smooth, with high plasticity, toughness and mechanical strength, resistant to acid, alkaline gas, solution and other media corrosion. It is an alloy steel that is not easy to rust, but it is not absolutely rust free. The plate refers to the steel plate that is resistant to the corrosion of weak media such as atmosphere, steam and water, and the acid-resistant steel plate refers to the plate that is resistant to the corrosion of chemical corrosive media such as acid, alkali and salt.
Chemical composition and physical properties of Alloy 20/UNS N08020/W.Nr.2.4660