Low elastic coefficient bodies, devices embodying them and methods of producing them

Claim 1

A METAL ELEMENT WHICH FUNCTIONS THROUGH ELASTIC DISTORTION COMPRISING A BODY OF AN ALLOY ANNEALED, AT A TEMPERATURE ABOVE 150* C. AND BELOW THE TEMPERATURE OF FULL RECRYSTALLIZATION OF THE ALLOY, FROM A COLD WORKED STATE PRODUCED BY SUBJECTING SAID BODY TO A COLD AREA REDUCTION OF AT LEAST 3 PER CENT, SAID ALLOY CONSISTING OF A COMPOSITION DEFINED WITHIN THE AREA OF AN IRONNICKEL-MOLYBDENUM TERNARY DIAGRAM BONDED BY THE QUADRANGLE HAVING AS ITS CORNERS THE FOUR POINTS DEFINED BY (1) 41.5 PER CENT NICKEL AND 58.5 PER CENT IRON; (2) 37 PER CENT NICKEL, 11 PER CENT MOLYBDENUM AND 52 PER CENT IRON; (3) 42.5 PER CENT NICKEL, 12 PER CENT MOLYBDENUM AND 45.5 PER CENT IRON; AND (4) 44.5 PER CENT NICKEL AND 55.5 PER CENT IRON; AND , IN ADDITION TO SAID COMPOSITION , UP TO .25 PER CENT CARBON, UP TO 2 PER CENT MANGANESE, UP TO 6 PER CENT ALUMINUM, AND UP TO 5 PER CENT SILICON, TOGETHER WITH INCIDENTAL IMPURITIES.