Title:
COLD ROLLED STEEL SHEET FOR DEEP DRAWING HAVING SINTERING HARDNESS
Document Type and Number:
Japanese Patent JPS6126757
Kind Code:
A
Abstract:
PURPOSE: To obtain a cold rolled steel sheet for deep drawing having sintering hardness by specifying the total amount of S and N in a dead soft steel contg. Ti.
CONSTITUTION: The composition of a steel is composed of, by weight, 0.0005W 0.015% C, <1% Si, <1% Mn, 0.005%W0.1% Al, <0.15% P, <0.003% S, <0.004% N (S+N≤0.005%), available Ti represented by the equation by an amount 4W20 times the amount of C and the balance Fe with inevitable impurities. The steel is hot rolled and cold rolled to obtain a cold rolled steel sheet for deep drawing having burning hardenability (BH≥2kgf/mm2). Said composition may further contain <3×C% Nb and/or <0.005% B.
Inventors:
SUZUKI HIDEO
SATO SUSUMU
OBARA TAKASHI
SUMIYAMA KOZO
SATO SUSUMU
OBARA TAKASHI
SUMIYAMA KOZO
Application Number:
JP14699084A
Publication Date:
February 06, 1986
Filing Date:
July 17, 1984
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
C22C38/00; C22C38/14; B21B; (IPC1-7): C22C38/14
Domestic Patent References:
| JPS5943824A | 1984-03-12 | |||
| JPS53114717A | 1978-10-06 |
Attorney, Agent or Firm:
Akihide Sugimura