Title:
FERRITIC STAINLESS STEEL FOR AUTOMOTIVE EXHAUST SYSTEM PARTS
Document Type and Number:
Japanese Patent JP3468156
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide ferritic stainless steel provided with strength, thermal fatigue resistance and oxidation resistance needed as exhaust system parts used in a high temp. automotive exhaust gas environment of ≥800°C.
SOLUTION: This steel is the one contg., by weight, ≤0.1% C, ≤1.0% Si, ≤1% MT ≤ 0.05% P, ≤0.008% S, 15 to 25% Cr, 1 to 3% Cu, ≤0.1% N, 0 to 3% Mo, 0 to 1% Ni, 0 to 1% Ti, 0 to 1% Nb, 0 to 1% Zr, 0 to 0.15% Al, 0 to 3% Mo and one or ≥two kinds among Ca, Mg, Y and rare earth elements by 0 to 0.1% in total, and the balance Fe with inevitable impurities.
Inventors:
Yoshitaka Nishiyama
Yoshio Tarutani
Yoshio Tarutani
Application Number:
JP10587299A
Publication Date:
November 17, 2003
Filing Date:
April 13, 1999
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
C22C38/00; C22C38/20; C22C38/50; (IPC1-7): C22C38/00; C22C38/20; C22C38/50
Domestic Patent References:
| JP10324956A |
Attorney, Agent or Firm:
Mikiji Sugioka (2 outside)