Stahlblech, Plattiertes Stahlblech und Automobilelement
Anmelder: Nippon Steel Corporation 🇯🇵
Details
- Veröffentlichungs-Nr.
- EP4748955
- Anmeldetag
- 12. Juli 2024
- Veröffentlichung
- 23. Januar 2025
- Rechtsraum
- EP
Abstract
The present invention has as its technical issue the provision of steel sheet and plated steel sheet having a high LME resistance. The steel sheet of the present invention has a tensile strength of 780 MPa or more, has a predetermined chemical composition, has a surface roughness Ra of the steel sheet of 3.0 µm or less, has a depth in a thickness direction from the surface of the steel sheet wherein a C concentration measured by GDS is 0.02% or less of 3 µm or more, has a thickness in a thickness direction from the surface of the steel sheet of a layer having an area ratio of ferrite of 90% or more of 3 µm or more, and, in grazing incidence X-ray diffraction with an incidence angle of 1° with respect to the steel sheet surface, 0.45 ≤ I(110) / ( I(110) + I(200) + I(211) ) ≤ 0.90 is satisfied, when I(110) denotes a diffraction intensity corresponding to the (110) plane, I(200) denotes a diffraction intensity corresponding to the (200) plane, and I(211) denotes a diffraction intensity corresponding to the (211) plane.
Anmelder
- Firma
- Nippon Steel Corporation
- Land
- 🇯🇵 Japan
Japanischer Stahlkonzern mit Sitz in Tokio, einer der größten Stahlhersteller der Welt. Aktiv in der Produktion von Stahl für Automobilbau, Bauwesen und Schiffbau sowie in Werkstoff- und Verfahrenstechnik.
6.278 Patente in unserer Datenbank