STEEL SHEET FOR HOT PRESSING AND PROCESS FOR MANUFACTURING HOT PRESSED MEMBER USING THE STEEL SHEET

摘要

THE INVENTION PROVIDES A HOT-PRESSING STEEL SHEET WHICH IS EXCELLENT IN OXIDATION RESISTANCE SO AS TO BE CAPABLE OF SUPPRESSING THE FORMATION OF SCALES AND ZnO DURING HOT PRESSING AS WELL AS IS EXCELLENT IN COLD PRESSING PROPERTIES, AND A PROCESS FOR MANUFACTURING A HOT PRESSED MEMBER USING THE STEEL SHEET. THE HOT-PRESSING STEEL SHEET INCLUDES A COATING LAYER CONTAINING 10 TO 25 MASS % OF NI AND A BALANCE OF ZN AND INEVITABLE IMPURITIES AND HAVING A MASS PER UNIT AREA OF 10 TO 90 G/M², AND A LUBRICATING LAYER CONTAINING A SOLID LUBRICANT, IN THE ORDER NAMED ON THE SURFACE OF A STEEL SHEET. [SELECTED