JPS6425951A - Alloy steel for thick steel forgings of cryogenic use - Google Patents
Alloy steel for thick steel forgings of cryogenic useInfo
- Publication number
- JPS6425951A JPS6425951A JP18187987A JP18187987A JPS6425951A JP S6425951 A JPS6425951 A JP S6425951A JP 18187987 A JP18187987 A JP 18187987A JP 18187987 A JP18187987 A JP 18187987A JP S6425951 A JPS6425951 A JP S6425951A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- contg
- alloy steel
- forgings
- cryogenic use
- 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
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To produce the titled alloy steel having high strength and high toughness by prepd. the steel contg. specific ratios of C, Si, Mn, Ni, Cr, Mo and Al and contg. the mixed phase of martensite and lower bainite as the fundamental structure. CONSTITUTION:The alloy steel contg., by weight, 0.02-0.15% C, <=0.35% Si, 0.1-0.4% Mn, 7.0-12.0% Ni, 0.2-2.0% Cr, 0.1-0.3% Mo, 0.01-0.035% Al and the balance iron with inevitable impurities and contg. the mixed phase of martensite and lower bainite as the fundamental structure is prepd. By this method, the alloy steel which has high strength and high toughness and can sufficiently be used as the member of cryogenic use even in thick steel forgings is obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18187987A JPS6425951A (en) | 1987-07-20 | 1987-07-20 | Alloy steel for thick steel forgings of cryogenic use |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18187987A JPS6425951A (en) | 1987-07-20 | 1987-07-20 | Alloy steel for thick steel forgings of cryogenic use |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6425951A true JPS6425951A (en) | 1989-01-27 |
Family
ID=16108463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18187987A Pending JPS6425951A (en) | 1987-07-20 | 1987-07-20 | Alloy steel for thick steel forgings of cryogenic use |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6425951A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2673197A1 (en) * | 1991-01-31 | 1992-08-28 | Creusot Loire | PROCESS FOR MANUFACTURING SOLID BLOCKS OR PIECES OF STEEL AND OBTAINED PARTS THEREFOR. |
-
1987
- 1987-07-20 JP JP18187987A patent/JPS6425951A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2673197A1 (en) * | 1991-01-31 | 1992-08-28 | Creusot Loire | PROCESS FOR MANUFACTURING SOLID BLOCKS OR PIECES OF STEEL AND OBTAINED PARTS THEREFOR. |
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