Rolled steel . Steels for cold forming (Cold extrusion and cold heading) . Steels which are particularly suited to machining (Free cutting steels) . Unalloyed carbon steels for cold drawing . Prestressed concrete steels . Welding filler steel grades . Tyre cord . Roller bearing steels . Case hardening steels . Quench and tempering steels . Precipiation hardening ferritic pearlitic steels . Spring steels . Valve spring steels . Chain steels . Unalloyed and low-alloy steels for tools . Other high grade construction steels . Non-magnetizable steels . Unalloyed construction steels Forging (Saar forge, open die forge) . Steels for turbines, generator shafts and compressor discs . Monoblock shafts . Welded shafts . High and low pressure shafts . Combined shafts . Gas and steam turbines . Super-conducting generator shafts . Soft martensitic steel for geothermal power stations . Compressor discs . High temperature steels . Tool steels for cold and hot working . Die steels . Steels for plastic moulds . High pressure tanks . Steels for assembly parts . AME-steels (low remanence steels) . Chemically treated austenitic, ferritic and martensitic steels . Pistons, plungers, cylinders, structural components for ships . Lifting lugs, bolts, plates, press cylinders . Construction of utensils and tanks . Centrifugal casting moulds . Press cylinders, rolls, bushings . Tension rods, pistons, connecting rods, plungers . Pipeline construction . Engine components, toothed racks, pinions . Piston rods, crank shafts, eccentric shafts . Tension rods, eccentric shafts, connecting rods