Title:
METHOD FOR REDUCING CENTER SEGREGATION IN CAST SLAB BY FINE OXIDE
Document Type and Number:
Japanese Patent JPH08267178
Kind Code:
A
Abstract:
PURPOSE: To provide a steel dispersing fine oxides controlled in the composition into the steel, restraining the development of harmful MnS in the center segregation part and excellent in a hydrogen induced cracking resistant characteristic and sulfric stress corrosion cracking resistant characteristic.
CONSTITUTION: The oxide satisfying 0.5-5μm grain diameter and ≥20 mass% Ti concn. is dispersed in the position of a cast slab in the range from the center position in the thickness direction to the surface direction corresponding to the center segregation part of the cast slab at 5-50 pieces/mm2 to reduce the development of MnS.
Inventors:
GOTO HIRONORI
KIYOSE AKITO
UCHIMURA MITSUO
KIYOSE AKITO
UCHIMURA MITSUO
Application Number:
JP7209595A
Publication Date:
October 15, 1996
Filing Date:
March 29, 1995
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B22D11/00; B22D7/00; B22D11/16; (IPC1-7): B22D11/00; B22D7/00; B22D11/16
Attorney, Agent or Firm:
Hiroaki Tamura (1 outside)