Valves made from nickel based alloy materials can work well on pipeline equipment in fine chemical engineering, metallurgical and smelting industries. They are very reliable corrosion resistant valves with good performance such as high strength, good toughness, high temperature resistance and corrosion resistance.
Nickel based corrosion-resistant alloys are alloys whose main properties are corrosion resistant to liquid media (at room temperature, sometimes higher than room temperature), which contain nickel generally not more than 70%. Cu, Cr, MO and W are mainly added to adapt to various working media with different chemical properties. Adding copper to improve the corrosion resistance of nickel in thick media and the uniform passivation in aerated high-speed flowing seawater. Cr is added to improve the corrosion resistance of nickel under oxidizing conditions (such as HNO3 and H2CI04) and high temperature resistance to chemicals and sulfur. Molybdenum and tungsten significantly improve the corrosion resistance of nickel in reducing acids.