64FeNi Round Bar /invar 36 bar 

64FeNi is an iron-nickel alloy containing 35-36% nickel and characterized by an extremely low coefficient of thermal expansion (excellent for applications requiring no dimensional changes with temperature variations.) Invar is strong, tough, ductile and possesses a useful degree of corrosion resistance. It is magnetic in the temperature range up to 400 oF.   Applications: Precision instruments, measuring tapes, weights, etc.     GENERAL PROPERTIES Specific Gravity: 8.08 Melting Point: 2600 oF Density: 0.292 lb/in3 Electrical Resistance: 494 ohms/mil/ft Specific Heat: 0.123 BTU/lb/oF Thermal Conductivity: 72.6 BTU/ft2/in/oF/hr I…