JPS5741358A - Austenite stailness steel with superior resistance to chloride stress corrosion cracking and crevice corrosion - Google Patents
Austenite stailness steel with superior resistance to chloride stress corrosion cracking and crevice corrosionInfo
- Publication number
- JPS5741358A JPS5741358A JP11551180A JP11551180A JPS5741358A JP S5741358 A JPS5741358 A JP S5741358A JP 11551180 A JP11551180 A JP 11551180A JP 11551180 A JP11551180 A JP 11551180A JP S5741358 A JPS5741358 A JP S5741358A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- stress corrosion
- austenite
- corrosion cracking
- crevice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
PURPOSE: To obtain an austenite stainless steel with superior resistances to stress corrosion cracking and crevice corrosion in environment of low concn. chloride by adding Cu to prevent stress corrosion cracking and by adding Mo to provide further enhanced crevice corrosion resistance.
CONSTITUTION: This steel consists of, by wt., ≤0.08% C, ≤1.0% S, ≤2.0% Mn, 6.0W20.0% Ni, 16.0W25.0% Cr, 0.5W3.0% Cu, 0.5W1.2% Mo and the balance Fe with inevitable impurities. Cu is remarkably effective in improving the stress corrosion cracking resistance of such a Cr-Ni austenite stainless steel to a salt soln. having a low salt concn. such as ≤3.5% corresponding to the salt concn. of seawater. The lower limit of Cu is decided to produce the effect, and the upper limit is decided from the economical viewpoint. Mo is effective in improving the crevice corrosion resistance. Above the lower limit of Mo is required, and the upper limit is decided in consideration of economical efficiency because of low corrosion resistance in environment of fresh water. The addition of Ti, Nb and Zr is more effective to attain the purpose.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11551180A JPS5741358A (en) | 1980-08-22 | 1980-08-22 | Austenite stailness steel with superior resistance to chloride stress corrosion cracking and crevice corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11551180A JPS5741358A (en) | 1980-08-22 | 1980-08-22 | Austenite stailness steel with superior resistance to chloride stress corrosion cracking and crevice corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5741358A true JPS5741358A (en) | 1982-03-08 |
Family
ID=14664326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11551180A Pending JPS5741358A (en) | 1980-08-22 | 1980-08-22 | Austenite stailness steel with superior resistance to chloride stress corrosion cracking and crevice corrosion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5741358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61139651A (en) * | 1984-12-10 | 1986-06-26 | Nippon Steel Corp | Austenitic stainless steel superior in rust resistance and cold workability |
-
1980
- 1980-08-22 JP JP11551180A patent/JPS5741358A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61139651A (en) * | 1984-12-10 | 1986-06-26 | Nippon Steel Corp | Austenitic stainless steel superior in rust resistance and cold workability |
| JPH0218382B2 (en) * | 1984-12-10 | 1990-04-25 | Nippon Steel Corp |
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