... Leaded Nickel CopperCuNi1Pb1P-UNS.C19160 Leaded Nickel Copper C19160 and C19140 are unique precipitation hardening ... form nickel phosphate, which dissolves in the copper on heating to a suitable temperature, and can be ... still further.C19160 is nominally composed of 97.8% copper, 1.0% lead, 1.0% nickel and ... phosphorus, while C19140 is nominally composed of 98.3% copper, 0.5% lead, 1.0% nickel and 0 ...