Title:
TOOL FOR WORDING AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH04311547
Kind Code:
A
Abstract:
PURPOSE: To offer a tool for working both excellent in wear resistance and toughness and unlike to generate failure such as cracks and chippings.
CONSTITUTION: These are a tool for working constituted of, by weight, 0.45 to 0.65% C, ≤0.03% P, ≤0.03% S, ≤0.30% Si, 0.1 to 0.4% Mn, 3.0 to 5.O% Cr, 2.0 to 6.0% Mo, 1.0 to 4.0% W, 0.5 to 1.5% V and the balance Fe with impurities and formed of graded fine grains of ≥No.8 in the austenitic size number and a method for manufacturing the tool for working in which the above tool steel stock is hardened at 1000 to 1060°C and is thereafter tempered.
Inventors:
IKEGAMI MASAYOSHI
YAMAMOTO TOSHIAKI
IGARI TAKU
YAMAMOTO TOSHIAKI
IGARI TAKU
Application Number:
JP7783691A
Publication Date:
November 04, 1992
Filing Date:
April 10, 1991
Export Citation:
Assignee:
DAIDO STEEL CO LTD
International Classes:
C22C38/00; C21D9/00; C22C38/24; (IPC1-7): C22C38/00; C22C38/24
Attorney, Agent or Firm:
Motonori Matoba (1 person outside)