(19)
(11) EP 3 816 307 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.06.2021 Bulletin 2021/25

(43) Date of publication A2:
05.05.2021 Bulletin 2021/18

(21) Application number: 20203912.9

(22) Date of filing: 26.10.2020
(51) International Patent Classification (IPC): 
C21D 9/46(2006.01)
B21D 25/00(2006.01)
B21D 1/05(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 30.10.2019 BE 201905751

(71) Applicant: Saey NV
8501 Heule (BE)

(72) Inventor:
  • Saey, Bernard
    8501 Heule (BE)

(74) Representative: Brantsandpatents bvba 
Pauline Van Pottelsberghelaan 24
9051 Ghent
9051 Ghent (BE)

   


(54) METHOD FOR PRODUCTION OF FLAT STEEL PLATES


(57) In a first aspect, the invention provides a method for the production of flat steel sheets, comprising the uncoiling of a coil of steel material, the flattening of the uncoiled steel material, the stretching of a segment of the steel material and the transverse cutting of said segment. In particular, a steel material is used with a silicon content of at most 0.60 %, preferably at most 0.50 %, a yield strength of minimum 235 N/mm2 and a tensile strength of minimum 340 N/mm2 . In a further aspect, the invention also provides a flat steel sheet, preferably obtained by applying the method.







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