Material Nickel Melting Point 1,455 DegreeC Shape Square Thickness 15mm Usage/Application Used for Armour Plating Country of Origin Made in India Atomic Mass 58.6934 u Precipitation hardening type alloy material made by adding small amounts of aluminum and titanium. It is used for parts that require a high level of strength such as bolts and springs. A-Ni. High-purity nickel. Purity is 99.7% or higher.D-Ni: Precipitation hardening type alloy material ...A-Ni: High-purity nickel. Purity is 99.7% or high...K-Ni: High-purity nickel. Purity is 99.5% or high..