A coatings (legacy galvannealed-steel term)
A legacy term for zinc–iron alloy coatings on galvanized steel.
Read the definition →THE LANGUAGE OF METAL
Get to know the terminology.
A growing glossary of metalmaking, processing and trade terms, including entries preserved from the original WordPress site.
A
AGC cylinders (automatic gauge control)
Rolling-mill cylinders used as part of automatic gauge control.
Read the definition →ASTM International
An international organization that develops consensus standards for materials, products, systems and services.
Read the definition →Actual weight
Mass determined by weighing the material, distinguished from a theoretical mass calculated from dimensions and assumed density.
Read the definition →Alloy steel
Steel with deliberately controlled alloying additions to obtain specified properties. The alloy name alone does not identify a grade.
Read the definition →Annealing
A controlled heating and cooling treatment used to change material properties, often to soften steel after processing.
Read the definition →C
Camber
Sideways curvature along the length of a nominally straight strip or product.
Read the definition →Coating mass (coating weight)
The mass of coating per unit surface area. The legacy glossary also used “coating weight”.
Read the definition →Coil
A continuous length of flat-rolled material wound into a roll.
Read the definition →Cold rolling
Rolling previously hot-rolled material at a lower temperature to reduce thickness and alter surface or mechanical properties.
Read the definition →Cold work
Plastic deformation below the material’s recrystallisation temperature. It can increase strength and hardness while reducing ductility.
Read the definition →Continuous casting
Solidifying molten steel in a continuous process to produce a strand that is subsequently cut into semi-finished forms.
Read the definition →Corrosion
Deterioration of metal through interaction with its environment. Stainless steel can also suffer particular forms of corrosion.
Read the definition →E
Elastic deformation
Deformation that is recovered when the applied load is removed, within the material’s elastic range.
Read the definition →Electric arc furnace (EAF)
A steelmaking furnace that uses an electric arc as a heat source.
Read the definition →Electrolytic tinplate
Steel sheet or strip carrying a tin coating applied electrolytically.
Read the definition →Elongation
Extension measured during a tensile test, commonly reported as a percentage using a specified gauge length.
Read the definition →S
Scale
Oxide formed on a metal surface during high-temperature processing.
Read the definition →Scrap
Metal collected for recycling rather than supplied as a finished product.
Read the definition →Secondary coil
A coil sold with limitations or deviations from the seller’s prime-product requirements. The reason can differ between lots.
Read the definition →Skin pass (temper rolling)
A light final rolling operation used to adjust flat-product shape, surface or mechanical behaviour.
Read the definition →Slab
A broad, semi-finished steel form that can be rolled into flat products.
Read the definition →Slitting
Cutting wide strip or coil lengthwise into narrower strips.
Read the definition →V
Vacuum degassing
Treatment of molten steel under reduced pressure to remove gases or adjust chemistry, depending on the process.
Read the definition →W
Wavy edges
A flatness condition in which the edges of flat-rolled material undulate relative to the central region.
Read the definition →Wet storage stain (white rust)
Surface corrosion products that can form on galvanized material when moisture is trapped between closely packed surfaces.
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