Title:
PRODUCTION OF HIGH MANGANESE STEEL
Document Type and Number:
Japanese Patent JPS5913556
Kind Code:
A
Abstract:
PURPOSE: To produce a high manganese steel having excellent resistance to cracking, by adjusting the content of P and controlling secondary cooling in the stage of continuous casting.
CONSTITUTION: The content of P in a high manganese steel contg., by weight %, 0.9W1.20% C and 11.0W14.0% Mn is made at ≤0.030. The molten steel is cast continuously in a 0.7W1.1l/kg range in the secondary cooling water ratio expressed by the equation and after the cast billet is heated at a rate ranging 30W35°C/h, the billet is held at 1,180W1,230°C for ≥3hr. Thereafter, the billet is subjected to preliminary rolling and the rolled slab is heated to ≥850°C and is subjected to a water toughening treatment.
Inventors:
KAWARADA AKIRA
KAKIUCHI HIROYUKI
IMAI TAKUO
YOSHII YUTAKA
KAKIUCHI HIROYUKI
IMAI TAKUO
YOSHII YUTAKA
Application Number:
JP12125682A
Publication Date:
January 24, 1984
Filing Date:
July 14, 1982
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
C21D6/00; B22D11/00; B22D11/10; B22D11/11; B22D11/112; B22D11/116; B22D11/117; B22D11/119; B22D11/12; B22D11/124; (IPC1-7): B22D11/10; B22D11/124; C21D6/00
Domestic Patent References:
| JPS52106327A | 1977-09-06 |
Attorney, Agent or Firm:
Akihide Sugimura