Title:
HIGH-ALUMINUM AUSTENITIC ALLOY HAVING EXCELLENT HIGH-TEMPERATURE ANTICORROSION CAPABILITIES AND CREEP RESISTANCE
Document Type and Number:
WIPO Patent Application WO/2022/148426
Kind Code:
A1
Abstract:
The present invention provides a high-aluminum austenitic alloy and a high-aluminum austenitic centrifugal casting pipe. The high-aluminum austenitic alloy and the high-aluminum austenitic centrifugal casting pipe have excellent anti-corrosion capabilities and creep resistance at a temperature of 900°C or above, while having required mechanical properties. In weight percentage, the high-aluminum austenitic alloy or the high-aluminum austenitic centrifugal casting pipe of the present invention is composed of the elements of: C, 0.3-0.7％; Mn, 0-0.5％; Si, 0-0.5％; Cr, 20-26％; Ni, 40-50％; Al, 3.5-5％; Ti, 0.01-0.3％; Zr, 0.01-0.3％; Nb, 0.1-1％; Ta, 0.01-2％; Mo, 0.01-1％; W, 0.01-1.9％; N, 0.001-0.04％; Re, 0.03-0.3％; the remainder being Fe and inevitable impurities. The present invention also relates to a method for manufacturing the high-aluminum austenitic alloy and the high-aluminum austenitic centrifugal casting pipe of the present invention.
Inventors:
ZHANG MINGHAO (CN)
DU KUN (CN)
PEI JIAN (CN)
DING TIANZHEN (CN)
YE GUOWEI (CN)
DU KUN (CN)
PEI JIAN (CN)
DING TIANZHEN (CN)
YE GUOWEI (CN)
Application Number:
PCT/CN2022/070698
Publication Date:
July 14, 2022
Filing Date:
January 07, 2022
Export Citation:
Assignee:
YANTAI MANOIR HEAT RESISTANT ALLOYS CO LTD (CN)
International Classes:
C22C19/05; B22D13/02; C22C1/02; C22C30/00
Foreign References:
| CN112853155A | 2021-05-28 | |||
| CN110023526A | 2019-07-16 | |||
| CN102187003A | 2011-09-14 | |||
| CN109112327A | 2019-01-01 | |||
| JP2014012877A | 2014-01-23 | |||
| US5316721A | 1994-05-31 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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