Title:
FERRITIC STAINLESS STEEL EXCELLENT IN ANTIBACTERIAL CHARACTERISTIC AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3223418
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a ferritic stainless steel provided with continuous antibacterial characteristic.
SOLUTION: In this ferritic stainless steel, ≤0.1% C, ≤2% Si, ≤2% Mn, 10-30% Cr, and 0.4-3% Cu are contained and Cu-enriched phases are precipitated in a proportion of ≥0.2vol.% in a matrix. This steel can further contain 0.02-1% Nb and/or Ti, and also one or ≥2 kinds among ≤3% Mo, ≤1% Al, ≤1% Zr, ≤1% V, ≤0.05% B, and ≤0.05% rare earth metal elements (REM) can be added. The Cu-enriched phases are precipitated by ≥0.2vol.% by means of aging treatment at 500-800°C after final annealing.
Inventors:
Morihiro Hasegawa
Katsuhisa Miyakusu
Sadayuki Nakamura
Naoto Ohkubo
Katsuhisa Miyakusu
Sadayuki Nakamura
Naoto Ohkubo
Application Number:
JP34773595A
Publication Date:
October 29, 2001
Filing Date:
December 15, 1995
Export Citation:
Assignee:
Nisshin Steel Co., Ltd.
International Classes:
C21D8/00; C21D6/00; C22C38/00; C22C38/20; C22C38/28; C22C38/38; (IPC1-7): C22C38/00; C21D6/00; C22C38/20
Domestic Patent References:
| JP517850A | ||||
| JP790503A |
Attorney, Agent or Firm:
Wataru Ogura
Previous Patent: 携行型複合機能器具セット
Next Patent: PRODUCTION OF NONHEAT-TREATED HIGH TENSILE STEEL PLATE EXCELLENT IN CHARACTERISTIC IN PLATE THICKNES...
Next Patent: PRODUCTION OF NONHEAT-TREATED HIGH TENSILE STEEL PLATE EXCELLENT IN CHARACTERISTIC IN PLATE THICKNES...