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                                                              High Temp Metals 800-500-2141

                                                              Invar 42

                                                              Description

                                                              Alloy 42 is a 41% nickel-iron controlled expansion alloy which has been used in a wide variety of glass-to-metal sealing applications.

                                                              While the expansion properties of this alloy most closely match 1075 glass, it has also been used in seals for the 0120 and 0010 glasses. It may also be used with hard glasses if a thin edged tubular seal is used. For seals that are not hydrogen annealed prior to sealing, a variation of this alloy containing small additions fo titanium, Glass Sealing 42 Gas-Free, has been used to promote gas-free sealing characteristics. Alloy 42 has been used for the glass-to-metal seals in electronic tubes, automotive and industrial lamps, transformer and capacitor bushings and other glass-to-metal and ceramic-to-metal applications.

                                                              TYPICAL SPECIFICATION PACKAGES

                                                              UNS-K-94100

                                                              PLATE:ASTM-F-30 CHEM/COE, ASTM-B-753 CHEM/COE, MIL/AMS-I-23011CL5 CHEM/COE

                                                              ALLOYSIZEWEIGHT
                                                              CURRENT PLATE INVENTORY
                                                              Invar 420.250 X 39.375 X 77.000
                                                              6.35MM X 1000.125 X 1955.8
                                                              314 LBS
                                                              142 KG
                                                              Invar 420.250 X 48.000 X 192.000
                                                              6.35MM X 1219.2 X 4876.8
                                                              2233 LBS
                                                              1013 KG
                                                              Invar 420.375 X 48.000 X 5.000
                                                              9.525MM X 1219.2 X 127
                                                              30 LBS
                                                              14 KG
                                                              Invar 420.375 X 48.000 X 144.000
                                                              9.525MM X 1219.2 X 3657.6
                                                              1611 LBS
                                                              731 KG
                                                              Invar 420.500 X 48.000 X 35.870
                                                              12.7MM X 1219.2 X 911.098
                                                              335 LBS
                                                              152 KG
                                                              Invar 420.760 X 48.000 X 144.000
                                                              19.304MM X 1219.2 X 3657.6
                                                              3262 LBS
                                                              1480 KG
                                                              Invar 421.010 X 48.000 X 144.000
                                                              25.654MM X 1219.2 X 3657.6
                                                              3235 LBS
                                                              1467 KG
                                                              Invar 421.500 X 48.000 X 4.250
                                                              38.1MM X 1219.2 X 107.95
                                                              94 LBS
                                                              43 KG
                                                              Invar 421.500 X 48.000 X 144.000
                                                              38.1MM X 1219.2 X 3657.6
                                                              3184 LBS
                                                              1444 KG

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