2000-282176 is referenced by 3 patents.

PROBLEM TO BE SOLVED: To produce a steel wire for spring excellent in heat resistance in the temp. region of 130 to 250°C and to provide a method for producing it. SOLUTION: This steel wire for a heat resistant spring contains, by weight, 0.7 to 0.9% C, 0.7 to 1.2% Si and 0.3 to 0.9% Mn and furthermore, contains plural elements selected from the group composed of 0.05 to 0.5% Cr, 0.005 to 0.05% Cu and 0.01 to 0.1% Mo. Its tensile strength is 1,400 to 1,900 MPa, twisting strength is 600 to 1000 MPa before aging and 800 to 1100 MPa after aging, and elongation is ≥3%. The minimum width of the thickness of a ferritic layer in a pearlite lamellar is ≥20 nm.

Title
Steel wire for heat resistant spring, and its production
Application Number
11-096539
Publication Number
2000-282176
Application Date
April 2, 1999
Publication Date
October 10, 2000
Inventor
Yamaguchi Koji
Kawabe Nozomi
Assignee
Sumitomo Electric
IPC
C25F 03/24
C23C 28/00
C22C 38/22
C21D 09/52
C21D 08/06
C21D 01/48
C21D 01/46
C22C 38/00