Nickel-copper-aluminum alloys, classes A and B, are used for the
same purposes with the class B preferred where improved cutting and
machine ability are required. For optimum tool life the annealed
condition is recommended. Cold-drawn material is intended f o r
automatic machining operations.
Nickel-copper-aluminum alloy sheet and strip in the annealed
condition may be used in the manufacture of articles in which
heading, bending, curling, drawing, forming, lock-seaming, welding,
etc., operations are involved.
Cold-rolled strip of half-hard and full-hard temper are used
where light deformations or liberal bending radii are involved, for
applications such as springs.
Nickel-copper-aluminum alloy wire in the annealed condition is
intended for severe forming, cold-heading, and roll-threading
Nickel-copper-aluminum alloy wire, class A, spring-temper in the
as-drawn condition is intended Where helical springs are to be cold
pressed, the cold pressing is to be done after for coiling of
helical springs which are to be age hardened after coiling in
order to obtain maximum strength and hardness. coiling and
aging. View Less