TECHALLOY GLASSEAL 29-17 is an iron-nickel-cobalt alloy with a thermal expansion rate that is unlike most metals and closely matches the thermal expansion characteristics of borosilicate glass, PYREX glass, and other similar low-expansion materials. It assures precisely controlled expansion properties that are ideal for usage in glass-to-metal seals. Typical applications are transmitting tubes, relays and electronic power tube envelopes. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-60. Producer or source: Techalloy Company Inc..

UNISEAL 29-17 is a controlled expansion iron-base alloy containing nickel and cobalt. It is widely used for glass-to-metal seals with borosilicate glasses commonly employed in electronic power tube envelopes. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-45. Producer or source: Cyclops Corporation.

NILO K has been developed specifically for the production of matched glass-to-metal seals when using hard, borosilicate glass. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-16. Producer or source: Henry Wiggin & Company Ltd. Originally published August 1959, revised January 1966.

KBI-10 alloy is a high-strength tantalum-tungsten alloy. It has excellent strength at high temperatures. This gives it serviceability as an aerospace material. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ta-12. Producer or source: Cabot Corporation.

NILO Alloy 42 is a binary nickel-iron alloy having a low and nominally constant expansion coefficient over the range 20-300 C (68-572 F). It is used for semiconductor lead frames, thermostats and glass-to-metal seals. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming and heat treating. Filing Code: Fe-77. Producer or source: Inco Alloys International Inc..