JPS5741321A - Manufacture of low alloy steel with superior sulfide stress corrosion cracking resistance - Google Patents
Manufacture of low alloy steel with superior sulfide stress corrosion cracking resistanceInfo
- Publication number
- JPS5741321A JPS5741321A JP11657380A JP11657380A JPS5741321A JP S5741321 A JPS5741321 A JP S5741321A JP 11657380 A JP11657380 A JP 11657380A JP 11657380 A JP11657380 A JP 11657380A JP S5741321 A JPS5741321 A JP S5741321A
- Authority
- JP
- Japan
- Prior art keywords
- low alloy
- alloy steel
- manufacture
- cracking resistance
- stress corrosion
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/02—Hardening by precipitation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To manufacture a low alloy steel with superior sulfide stress corrosion cracking resistance by hardening a low alloy steel contg. a specified percentage of C, Si, Mn, Al, P, etc. followed by tempering under specified conditions. CONSTITUTION:A low alloy steel contg., by wt., 0.05-0.35% C, 0.01-0.03% Si, 0.15-1.5% Mn and 0.005-0.1% Al as principal components and further contg. <=0.1% Mo and 0.03-0.15% V is prepared. The P, Si and La contents of the steel are adjusted so as to satisfy equation (Si+0.05)[P-1/4.5La]<=0.00375 in case of >=700 deg.C tempering temp. and equation (Si+0.05)[P-1/4.5La]<=0.00075 in case of 650-<700 deg.C tempering temp. The alloy is hardened and tempered at 650 deg.C- the Ac1 point in a short time such as <=300sec.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11657380A JPS5741321A (en) | 1980-08-25 | 1980-08-25 | Manufacture of low alloy steel with superior sulfide stress corrosion cracking resistance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11657380A JPS5741321A (en) | 1980-08-25 | 1980-08-25 | Manufacture of low alloy steel with superior sulfide stress corrosion cracking resistance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5741321A true JPS5741321A (en) | 1982-03-08 |
Family
ID=14690449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11657380A Pending JPS5741321A (en) | 1980-08-25 | 1980-08-25 | Manufacture of low alloy steel with superior sulfide stress corrosion cracking resistance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5741321A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5719323A (en) * | 1980-07-08 | 1982-02-01 | Nippon Steel Corp | Production of steel of superior sulfide stress corrosion cracking resistance |
-
1980
- 1980-08-25 JP JP11657380A patent/JPS5741321A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5719323A (en) * | 1980-07-08 | 1982-02-01 | Nippon Steel Corp | Production of steel of superior sulfide stress corrosion cracking resistance |
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