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Blair Strip Steel - Production glossary Category: Agriculture and Industry > Steel production Date & country: 03/05/2011, USA Words: 90

ACRSSP
the Association of Cold Rolled Strip Steel Producers, a trade association

Aircraft Quality Alloy Steel
usually 4130 alloy strip produced to AMS specifications

Alloy
metallic or non-metallic elements added to base metals to modify its properties

Alloy Strip Steel
steel with one or more additional elements for customizing specific properties

Aluminum-Killed
steel with aluminum added to deoxidize and refine grain size

Annealing
heating and cooling cycles to soften strip steel for rerolling or forming into parts

Batch Annealing
annealing performed in strip steel coils using bell furnaces

Belleville Disc Springs
alloy steel formed into a conical disc that can be engineered to compress at a specific load. Belleville springs can be used alone or stacked in multiples for specifically-designed applications. BelleFlex Technologies, a subsidiary of Blair, produces Belleville springs in Freeport, Pennsylvania.

Blast Furnace
where iron ore, coke and limestone are super-heated to create liquid iron

BOF
Basic Oxygen Furnace

Burr
the sharp, extended edge of a steel strip created by slitting or blanking operations

Butt Welding
the joining of two strip edges end-to-end, usually with electric resistance

Cold Rolling
reduction of flatrolled steel by passing hot rolled coils between one or more sets of rolls

Cold Working
any type of strain hardening that increases hardness, ductility, strength and temper

Continuous Casting
a production unit that transforms molten steel into a continuous slab

Crown
flatrolled strip with a greater thickness along the centerline than at the edges

Cut Lengths
flatrolled steel sheared from coils to a specified length and stacked on skids

Dead Soft Temper
flatrolled steel that has been annealed last to provide the lowest hardness

Deburring
an edging operation that has removed the burr from a slit strip edge

Deoxidation
process to remove or tie up oxygen molecules in molten steel production

Drawing Quality
flatrolled steel processed to enhance the ability to stretch and form

Ductility
elongation property of steel that resists fracturing during deformation

EAF
Electric Arc Furnace

Edges
the strip edge, naturally rounded, often slit, sometimes deburred, rolled or skived

Electromagnetic Iron
specially processed, ultra-low carbon strip used in relay and switch applications

Elongation
the amount a sample of steel will stretch before breaking, reported as a percentage

Face
the total width of an oscillate-wound coil

Fineblank
a highly-engineered, near net-shape method of metal stamping typically using heavy gauge strip

Fineblanking Steel
strip steel produced with enhanced extrusion characteristics and uniformity

Finish
the surface topography of flatrolled strip: light matte, matte, regular bright, etc.

Flattening
leveling operation of steel strip through a unit housing a series of small diameter rolls

Full Hard Temper
flatrolled steel that is rolled hard last for parts that require high hardness, stiffness

Gauge
a numerical designation or decimal measure of thickness in flatrolled steels

Gauge-Corrected
flatrolled steel with a light rolling to improve thickness tolerances

Grain Size
the relative size of individual, microscropic crystals of steel

Half Hard Temper
flatrolled steel of intermediate hardness, between hard and soft tempers

Hardness
the measure of steel's resistance to permanent deformation by a penetrator

Heat
the volume of molten steel in one production lot of a BOF or an EAF vessel

Heat Treatment
thermal process to increase hardness, usually to high carbon or alloy finished parts

Heavy Gauge Strip Steel
typically thicker than .250", with precision tolerances or custom properties

High Carbon Steel
grades with .25% carbon or more, usually for parts to be heat treated

High Strength Low Alloy
low carbon steel with microalloying elements for minimum strength values

Hot Rolled Strip
slabs heated and rolled into hot coiled bands of flatrolled steel

Hydroforming
a strip steel metalforming technique using fluid pressure and dies

ID Core
a steel or fiber board liner on the inside diameter of an oscillated coil

Inclusions
non-metallic, often undesirable impurities retained in steel during solidfication

Killed Steel
steel deoxidized with aluminum or silicon to reduce gas content and refine grain size

Ladle or Heat Analysis
chemical analysis taken for each BOF or EAF heat or production lot

Low Carbon Steel
grades with less than .25% carbon, usually for formed parts

Macro Etch
acid-etching a steel sample to enhance viewing its macrostructure

Matte Finish
a specified roughened or textured surface on flatrolled steel

Metallography
the study of various steel microstructures as seen through a microscope

Metallurgy
the study of metals and alloys, their production, properties and applications

Microcleanliness
describes the extent and morphology of non-metallic inclusions

Microstructure
the crystalline constituents of steel observed through a microscope

Mill Edge
the naturally rounded edge of a flatrolled strip produced by rolling on a mill

Normalized Structure
a high temperature heat treatment to return steel crystals to their normal state

One Pass Steel
typically hot rolled steel with a minimal cold reduction pass on a rolling mill

Oscillate-Winding
coiling narrow widths in a traverse fashion, much like a fishing reel

Pawl Steel
ultra-heavy alloy strip steel used to make auto transmission parking pawls

Pickling
passing steel through an acid bath to remove hot mill scale and oxide from the surface

Profilometer
a tool used in the measurement of relative surface roughness, peak to valley

Quarter Hard Temper
soft flatrolled steel lightly rolled to moderately increase hardness

Residual Elements
non-essential, incidental elements found in trace amounts in steel

Reversing Cold Mill
a single-stand mill that performs multiple pass reductions, back and forth

Rockwell
a standard method and numerical scale used to measure hardness in metals

Roll Forming
continuous metal forming method using a series of engineered rolls

Shear
a steel cutting operation performed by a fixed edge and a moving blade

Sheet Coil
a term for wide flatrolled steel produced to generic characteristics

Skin Pass
a light rolling of flatrolled steel to stiffen, brighten or gauge-correct flatrolled steel

Slab
the primary, continuously cast shape to be hot rolled into flatrolled coils

Slitting
a continuous rotary shearing operation to split wide coils into narrower coils

Slit Edge
the sheared strip edge created by slitting wide coils into narrow widths

Spheroidized Annealing
a heating process to create globular carbides in the strip

Spring Steel
a term typically used for high carbon steel to make parts that will be heat treated

Stainless Steel
strip steel with chromium and often nickel to deter atmospheric corrosion

Stamping
metalworking operation that shears and forms parts using tools and dies

Steel
iron with carefully specified additions of carbon, manganese and phosphorus

Stretcher Leveling
a steel flattening process that pulls the strip slightly beyond the yield point

Strip Mills
narrow cold mills, more precise than sheet mills, capable of high carbon, alloy grades

Strip Steel
narrow flatrolled steel produced to custom and/or precision characteristics

Strip Tolerances
thickness variation typically half or less of sheet mill industry tolerances

Tandem Cold Mill
a series of two or more mill stands that cold reduce the thickness of steel coils

Temper
the specified hardness range or degree of stiffness typical of low carbon strip steel

Temper Mill
a cold mill used to make a light final reduction for temper, finish and thickness accuracy

Tensile Strength
the maximum stress a steel specimen exhibits when pulled to failure

Tolerance
the permissible variation above and below a specified characteristic, such as thickness

Traverse-Wound Coil
another name for an oscillate-wound coil

Ultra Heavy Gauge Strip
steel typically heavier than .375", with precision or custom characteristics

Yield Strength
the stress at which a steel specimen exhibits permanent deformation