Copper base alloy

Claim 1

A COPPER BASE ALLOY IN THE WROUGHT CONDITION CHARACTERIZED BY GOOD HOT ROLLABILITY, GOOD STRESS CORROSION RESISTANCE, GOOD STRENGTH PROPERTIES AND GOOD BEND CHARACTERISTIC CONSISTING ESSENTIALLY OF: TIN FROM 2 TO 11 PERCENT; PHOSPHORUS FROM 0.01 TO 0.3 PERCENT; A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, ZIRCONIUM, TITANIUM, VANADIUM AND MIXTURES THEREOF IN AN AMOUNT FROM 0.2 TO 0.8 PERCENT EACH; AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF IRON AND COBALT AND MIXTURES THEREOF IN AN AMOUNT FROM 0.3 TO 2.0 PERCENT EACH, WHEREIN THE TOTAL OF IRON PLUS COBALT MUST BE AT LEAST 0.8 PERCENT; BALANNCE COPPER, SAID ALLOY HAVING A GRAIN SIZE LESS THAN 0.010 MM, SAID ALLOY CONTAINING PARTICULATE PHASES UNIFORMLY DISPERSED THROUGHOUT THE MATRIX THEREOF WHEREIN A FIRST OF SAID PHASES CONTAINS AN IRON AND/OR COBOBALT-TRANSITION METAL INTERMEDIATE PHASE COMPRISING A SOLID SOLUTION OF SAID IRON AND/OR COBALT PLUS TRANSITION METAL AND WHEREIN A SECOND OF SAID PHASES CONTAINS IRON AND/OR COBALT-TRANSITION METAL PHOSPHIDES.