The largest application by far for tinplate is in packaging (Food cans, Beverage cans, Aerosol cans, closures)
and this is thought to account for about 90% of total tinplate
production.Existing non-packaging applications cover a diverse
range of uses (electrical, automotive, household and construction)
although none of these individual uses represents a large tonnage
outlet.Jianhui Metals Group has been set up as a forum to discuss
potential new non-packaging applications for tinplate.
Base Weight – The term used to describe the thickness of tin mill products is base weight. The designated base weight
multiplied by .00011 (see table on page 10) is the exact decimal
thickness in inches of the material. Although it is still customary
to use the word “pound” following the base weight designation, base
weight is used only to describe material thickness and is not a
measure of the weight of a base box.
Black Plate – A low-carbon cold-reduced steel intended for use in
the uncoated state or for coating with tin or chromium.
Box Annealing – A process to soften steel and relieve stresses
produced during cold rolling, which involves slow heating to,
holding at, and cooling of coils from a high temperature. It is
accomplished in a closed box and a relatively bright surface is
maintained by introducing a slightly reducing gas during the
annealing process.
Butyl Stearate (BSO) Oil – A lubricating film applied to both
surfaces of chromium coated black plate.
Cathode – See Anode.
Chemical Treatment – A chemical or electrochemical treatment that
stabilizes the tinplate surface, minimizing the oxidation of tin
during storage or lacquer baking, and improves lacquer performance.
Chromium Coated Steel – Single or double reduced black plate having
a coating of chromium and chromium oxide applied electrolytically.
Also referred to as TFS, tin-free steel, electrolytic chromium-coated steel or ECCS.
