JPS5792125A - Production of b-v-containing steel of low stress relief annealing crack sensitivity - Google Patents
Production of b-v-containing steel of low stress relief annealing crack sensitivityInfo
- Publication number
- JPS5792125A JPS5792125A JP16661180A JP16661180A JPS5792125A JP S5792125 A JPS5792125 A JP S5792125A JP 16661180 A JP16661180 A JP 16661180A JP 16661180 A JP16661180 A JP 16661180A JP S5792125 A JPS5792125 A JP S5792125A
- Authority
- JP
- Japan
- Prior art keywords
- stress relief
- relief annealing
- production
- crack sensitivity
- low stress
- 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.)
- Granted
Links
Abstract
PURPOSE: To lower stress relief annealing crack sensitivity effectively by adding Ca or Ce to to B-V-contg. steel and regulating an Sfree amt. at below prescribed values.
CONSTITUTION: Ca or Ce which is a sulfide forming element or both thereof are added to B-V-contg. steel, for example, 80-kg/cm2 class high tensile steel contg. 0.0005W0.005% B and 0.01W0.1% V produced in a melting furnace such as electric furnace, whereby its Sfree amt. is regulated to ≤20ppm by the following calculation equation. Sfree=[S-(Ca%/1.25+Ce%/4.38)].
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16661180A JPS5792125A (en) | 1980-11-28 | 1980-11-28 | Production of b-v-containing steel of low stress relief annealing crack sensitivity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16661180A JPS5792125A (en) | 1980-11-28 | 1980-11-28 | Production of b-v-containing steel of low stress relief annealing crack sensitivity |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5792125A true JPS5792125A (en) | 1982-06-08 |
JPS6353246B2 JPS6353246B2 (en) | 1988-10-21 |
Family
ID=15834510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16661180A Granted JPS5792125A (en) | 1980-11-28 | 1980-11-28 | Production of b-v-containing steel of low stress relief annealing crack sensitivity |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5792125A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59110765A (en) * | 1982-12-16 | 1984-06-26 | Kawasaki Steel Corp | Cr-mo steel for pressure container excellent in hydrogen corrosion resistant characteristics and sr crack-resistant |
JPS60238451A (en) * | 1984-05-14 | 1985-11-27 | Kawasaki Steel Corp | High strength cr-mo steel for pressure vessel |
JPS6156268A (en) * | 1984-08-24 | 1986-03-20 | Nippon Steel Corp | High toughness and high tensile steel and its manufacture |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH067772B2 (en) * | 1989-04-26 | 1994-02-02 | 日東電工株式会社 | Microporous film for agricultural product cultivation and agricultural product cultivation method using the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52144318A (en) * | 1976-05-28 | 1977-12-01 | Nippon Steel Corp | Production of high tensile strength steel excllent in weldability and sr brittleness resistance |
-
1980
- 1980-11-28 JP JP16661180A patent/JPS5792125A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52144318A (en) * | 1976-05-28 | 1977-12-01 | Nippon Steel Corp | Production of high tensile strength steel excllent in weldability and sr brittleness resistance |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59110765A (en) * | 1982-12-16 | 1984-06-26 | Kawasaki Steel Corp | Cr-mo steel for pressure container excellent in hydrogen corrosion resistant characteristics and sr crack-resistant |
JPS60238451A (en) * | 1984-05-14 | 1985-11-27 | Kawasaki Steel Corp | High strength cr-mo steel for pressure vessel |
JPH0225974B2 (en) * | 1984-05-14 | 1990-06-06 | Kawasaki Steel Co | |
JPS6156268A (en) * | 1984-08-24 | 1986-03-20 | Nippon Steel Corp | High toughness and high tensile steel and its manufacture |
JPS6358906B2 (en) * | 1984-08-24 | 1988-11-17 |
Also Published As
Publication number | Publication date |
---|---|
JPS6353246B2 (en) | 1988-10-21 |
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