N
Necking
Strip condition caused by the
application of too much tension which causes the strip to become
narrower (or stretched).
Non-Aging
Little to no change in mechanical
and physical properties over time; Yield point elongation is zero. See
Aging.
Normalizing
Heating to a temperature about 100
degrees F above the critical range, as indicated by the iron carbon
diagram, and cooling in still air. Normalizing is used to restore the
steel to its normal condition after hot working, cold working ,
non-uniform cooling or overheating, or to eliminate the effects of
previous heat treatment. Other common objects of normalizing include the
development of uniformity in grain, structure and physical properties, a
slight hardening of medium carbon steels to improve machinability and
the removal of stresses, strains, or course grain prior to hardening.
The usual normalizing temperatures range from about 1500 degrees to 1800
degrees F depending on the steel involved.
Nonreflow
Plate
(MATTE) Does not get reflowed to melt the Tin coating.
Non-Temper
Passed Bands
Hot bands.
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