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Material Safety Data Sheets
(MSDS)
Sheets that document safety issues associated with various materials
used.
Matte Finish
A dull or grit surface appearance achieved by rolling on rolls which
have been roughened by mechanical, chemical, or electrical means to
various degrees of surface texture.
Matte Surface
A dull surface appearance on a tin plate product; non-reflowed
tinplate. See Reflowed Surface.
Mechanical Properties
Those properties of a material that reveal the elastic and inelastic
reaction when force is applied, or that involve the relationship
between stress and strain; for example, the modulus of elasticity,
tensile strength, and fatigue limit. These properties have often been
designated as "physical properties," but the term "mechanical
properties" is much to be preferred.
Medium Carbon Grade
At WSC, steel with a Carbon content of .08% to .20%. See Low Carbon
Grade and High Carbon Grade.
Mill Edge
A
hot band processed through the Pickler without being side trimmed.
This replaces the old term, band edge.
Min. Triple Spot Aver. Coating
The average of three coating weights test results obtained from a full
width sample of a galvanized (or
any other coated) coil: 2 inches from each end and dead center. |
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Minimized Spangle
A dull Hot-Dipped Galvanized surface appearance in which the normal
zinc formation has been suppressed; achieved by applying water
droplets or some other nucleating agent to the zinc surface after the
bath but before the zinc solidifies to suppress the growth of spangle.
Misting
A coating defect consisting of a condition encountered, primarily on
D & I high speed beverage can coating machines, which appears as many
fine spots of coating.
Modulus of Elasticity
The number which represents the relative "springness" of a given type
of metal. All steels have the same modulus of elasticity or
"springiness" regardless of the tensile or yield strengths. That is,
until the yield point is reached they all stretch the same amount for
a given load. Aluminum, on the other hand, is more elastic than steel
and thus will stretch more than steel under the same loading.
Mult
A "mult" is the term used to describe the slitting of a coil into
multiple smaller strips. If a coil is slit into strips less than 9",
each strip is referred to as a "mult" and does not receive an
individual IPM number. Mults are not removed from the line
individually, but as a whole coil unit. For reasons pertaining to
customer orders, however, they may be separated and packaged with "mults"
from other coils for shipping.
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