STEEL COMPONENT MANUFACTURED BY HOT FORMING, METHOD OF MANUFACTURING AND USE OF THE COMPONENT

• Main Authors: Lindner, Stefan, Skrlec, Jasminko
• Format: Patent
• Language: English; Hungarian
• Published: 01.03.2021
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The invention relates to a steel for manufacturing a component by hot forming after austenization. The steel consists of in weight % less than or equal to 0.2 %, carbon (C), less than or equal to 3.5 % silicon (Si), 1.5- 16.0 % manganese (Mn), 8.0 - 14.0 % chromium (Cr), less than or equal to 6.0 % nickel (Ni), less than or equal to 1.0 % nitrogen (N), less than or equal to 1.2 % niobium (Nb) linked to the formula Nb = 4x(C+N), less than or equal to 1.2 % titanium (Ti) so that Ti = 4x(C+N) + 0.15, and further optionally less than or equal to 2.0 % molybdenum (Mo), less than or equal to 0.15 % vanadium (V), less than or equal to 2.0 % copper (Cu), less than 0.2 % aluminum (Al), less than or equal to 0.05 % boron (B), the rest being iron and evitable impurities occupying in stainless steels. The invention also relates to the steel in transportation parts of vehicles and in pressure vessels or tubes.