Download - Salzgitter AG

Pilger rolling
Conventional step-forming process (cold pilger rolling) for the production of seamless tubes by reducing
the diameter and wall thickness of the tube (hollow section).
Plate
Sheet steel of 30 mm or more in thickness. Plate is required mainly in the construction industry, for
mechanical engineering and equipment manufacturing, shipbuilding and large-diameter pipes.
Precision tubes
Seamless or welded steel tubes utilized predominantly in mechanical engineering and the automobile
industry.
Push bench
Hot-forming machine in which a mandrel rod forces a cylindrical hollow ingot that is heated to forming
temperature through several roll passes (consist of three non-driven, calibrated rolls symmetrically
arranged on the circumference) for multiple stretching.
R
Reduction agent
Sources of carbon such as coke, coal or fuel oil used in the blast furnace process to convert iron ore
(iron oxide) into pig iron.
Relining
Cladding the blast furnace with refractory material, a process repeated in intervals from ten to fifteen
years.
Rolled steel
The sum total of all end products to emerge from rolling mills.
S
Seam annealing unit
Unit for normalizing the longitudinal HF-welding seam of steel tubes on the basis of electromagnetic
induction.
Sections
Long products such as beams and sheet piles, used primarily in building construction and civil engineering.
Semi-finished goods/semis
A general term for input material made from crude steel for use in rolling mills (slabs, blooms, tube
rounds).