INVAR 42 Alloy :(Composition (Nominal): 0.05 C, 0.40 Mn, 0.25 Si, 41.0 Ni, Bal. Fe; : ( INVAR 42 A nickel-iron controlled-expansion alloy containing 41% nickel. It has a low and nominally constant coefficient of thermal expansion from room temperature to about 300°C.Used for glass-to-metal sealing of components that are enclosed in a glass envelope,such as lamps and electron tubes. :(Specification : ASTM F30 ; ( Product availability and request a QUOTE!
