Stainless steel

Advantages of stainless steel are the high corrosion resistance, good process ability (weldability), high heat resistance, ease of maintenance, and excellent hygienic properties. In addition, stainless steel has a very attractive appearance, is durable, and highly cost-effective. thyssenkrupp Materials Serbia offers to its customers a broad range of stainless steel flat, long, and tube materials, both austenitic and ferritic.

Austenitic

The austenitic iron-chromium-nickel grades represent 80% of the world market for stainless steel. Furthermore, these materials can be readily welded to give sound metallurgical joints, greatly facilitating their use. Depending on the intended application, i.e. on the required service properties, together with the conditions of implementation, a number of other alloys have been developed with specific property combinations. The principal applications are the storage and treatment of foodstuffs, collective catering, and hospital equipment. They also constitute the standard materials for chemical engineering equipment and are widely employed for domestic utensils and appliances. In the as-delivered condition, austenitic chromium-nickel(-molybdenum) steels have higher elongation values and generally greater corrosion resistance. In contrast to the ferritic chromium (-molybdenum) steels, they are not magnetizable in the as-delivered condition.

Ferritic

The ferritic stainless steels are characterized by their structure, which remains fully ferritic at all temperatures. Their heat resistance is lower than austenitic steels. Ferritic chromium (-molybdenum) steels generally have a lower elongation and corrosion resistance than austenitic Cr-Ni-(Mo) steels. In addition to preventing intergranular corrosion and to improve weldability, stabilizing elements like titanium, niobium, and vanadium are added in sufficient quantities.