• Home

Glossary

So you don’t know what a slab is? No problem. Here you’ll find explanations of the specialized terms and abbreviations from the world of thyssenkrupp Steel Europe.

A

Finishing area

Equipment and operations used to provide steel products with the desired appearance after forming (straightening, cutting, etc.).

AOD converter

B

Hot-rolled sheet

Sheet cut from hot-rolled wide strip, primarily in thicknesses of up to 15 mm (max. 20 mm).

Strip casting

Slab

C

Coil

Steel strip wound into a coil.

D

Downstream activities

Further steps for processing flat steel to add greater value, e.g. surface finishing, steel service or joining technology.

E

Electrical steel

Steel produced by melting in an electric arc furnace or induction furnace. The operation method of electric steel furnaces allows the production of chemically resistant types of steel, tool and high-speed steels, specialty steels for mechanical engineering, aerospace and nuclear technology, and magnetic materials.

F

Sheet

Flat product in thicknesses from 0.35 to less than 3.00 mm: cold-rolled flat products made of soft or higher-strength grades for cold forming. Primarily metallic or organic coatings.

G

Casting-rolling line

Modern production line based on thin slab technology for manufacturing hot strips from molten crude steel in just one production step.

Heavy plate

H

Blast furnace sand

Blast furnace slag (granulated) quenched with water and vitreously solidified. Raw material for cement manufacturing.

Blast furnace

Blast furnace gas

I

Interior high pressure remolding

Innovative forming process in which a pressurized liquid is used as an active medium in a closed die. It can be used to manufacture highly complex shapes such as tubular output sections.

K

Cold strip

Made by cold reduction, this flat product is available in widths of up to 2,000 mm and thicknesses from 0.35 to approx. 4 mm for quality steel. The advantages of cold-rolled strips in comparison with hot-rolled strips include better surface quality, lower tolerances and thinner dimensions.

Cold rolling

L

Alloy

Steel materials with additional metallic or non-metallic elements (e.g. carbon, chrome, silicon).

M

Burden

A charge supplied to the blast furnace that consists of (1) input materials that contain iron oxide and (2) additives.

Multi-processing line

N

Sustainability

Economic, social and ecological goals are considered equally and seen from their networked perspective.

O

Surface finishing

Corrosion protection for high-quality flat steel consisting of metallic (zinc, nickel, aluminum) or organic coatings (paint, plastic).

Oxygen-steel converter

P

Primer

Bonding agent used between steel and a coating material that adheres poorly or not at all when applied directly to steel. Primers are excellent protective coatings against corrosion and base coats for adding layers of paint later.

PVD/CVD

Q

Quality steels

Term from DIN EN 10020 – “Definition and classification of grades of steel.” Plain-carbon steels (base steels, unalloyed quality, unalloyed stainless steels) are differentiated from alloyed steels (alloyed quality and alloyed stainless steels).

Quarto reversing mill

Cut-to-length line

R

ReflectionsOne®

A wide range of colors for building with steel developed by color designer Friedrich Ernst v. Garnier. In the meantime, these colors have already been used successfully for many major buildings all over the world.

Reversing stand

Pig iron

Crude steel

S

Shaft furnace

Unit for melting pig iron from ferrous materials already in the steelworks stream that have not yet been able to be used.

Slag

Hot-dip coating

Secondary metallurgy

Simultaneous and concurrent engineering

Sinter

Sintering plant

Special structural steels

Slit strip

Steel service center

Stainless

Quenching unit

Pusher furnace

Continuous casting

Supply chain management

T

Tailored blank

Semi-finished parts made from individual sheets with identical or different steel grades, thicknesses or surface finishes, the parts of which are welded together, e.g. laser welding. Tailored blanks can be formed and are customized with regard to special customer requirements.

Tandem mill

Torpedo ladles

Tear-type plates

U

ULSAB

Ultralight steel auto body. The ULSAB-AVC (Advanced Vehicle Concepts) program is an important element of the continuous efforts of the international steel industry to ensure the future of steel as the material of first choice for automotive manufacturers.

V

Vacuum facility

Unit for subsequent treatment of steel under significantly reduced pressure suitable to achieve especially high purity, low gas content and tight alloy tolerances. This allows high quality requirements to be met.

Heat treatment (quenching and tempering)

Wear-resistant steels

W

Heat treatment of heavy plates

Annealing of heavy plates in furnaces to adjust certain microstructures and, as a result, properties that cannot be achieved directly in the rolling process.

Standard processes:

  • Water or oil hardening and possible tempering
  • Normalizing and possible tempering

Hot (wide) strip

Hot strip mill

Hot rolling

Tinplate

Magnetically soft steels

Z

Toughness

The work stored by deformation or another type of energy conversion up to the breakage point.

Tensile strength

Scales

Finishing area