I
ID
Inside diameter (of a coil).
IMIS
(Integrated Manufacturing Information System)
Computer system used to record
production information.
Impact Tests
Tests to determine the energy absorbed in
fracturing a test specimen at high velocity. There are various kinds of
impact tests, such as charpy, izod, drop weight, etc.
Inclusions
Refers to a defect when particles
of nonmetallic impurities, usually oxides, sulfides, silicates, and
such, which are mechanically held in steel during solidification.
Integrated Steel Producer
A steel company which manufactures
solid steel products; starts with raw materials such as iron ore, flux,
etc, to make molten iron; converts the molten iron to liquid steel in
the steelmaking furnaces and processes liquid to solid steel products.
See Minimill Steel Producer.
Inter-Chemical Gauge
Wet film thickness can also be
measured using an Inter-chemical Gauge. A graduated circular cam is
rolled against the plate between two parallel rollers. The wet film
thickness is then read directly on cam at demarcation of coating wetting
the cam.
Intermediate Temper
A cold rolled hardness range
specified with a 15-point Rockwell B spread. See Quarter Hard Temper and
Half-Hard Temper.
Internal Cleanliness
Measure of number and types of
non-metallic inclusions such as oxides, sulfides or silicates.
IPM Number
(In-Process Material)
A seven-character number,
consisting of the unit ID and sequential production number, used to
track production history of a coil. The letter and first digit are used
to identify the production unit and the last five digits are the
sequential production identifying number.
IPM
An identifiable piece of steel;
can be a slab, coil, or a bundle of sheets, or several slit mults banded
together.
Iron-Zinc
Alloy Coating
See Galvanized.
ISO Codes
The codes that designate the amount of
contamination in the oil.
Isolate (Isolation)
To remove a boiler, or any
particular part or system of a boiler, form service by closing the
manual valves. |
