JPS5547366A - Steel for weld construction having high fracture toughness weld zone - Google Patents
Steel for weld construction having high fracture toughness weld zoneInfo
- Publication number
- JPS5547366A JPS5547366A JP12067178A JP12067178A JPS5547366A JP S5547366 A JPS5547366 A JP S5547366A JP 12067178 A JP12067178 A JP 12067178A JP 12067178 A JP12067178 A JP 12067178A JP S5547366 A JPS5547366 A JP S5547366A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- nitride
- content
- welding heat
- welding
- 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
- Arc Welding In General (AREA)
Abstract
PURPOSE: Steel for welding excellent in notch toughness of weld bond part, contained more than one kind of C, Si, Mn, P, N and Al, Ti, Zr etc. and fixing free N as nitride etc. especially and then, obtained by lowering the content of the above nitride.
CONSTITUTION: Content of N in the steel for welding is remarkably low, making about 25ppm of free N content, not more than 0.0040% of total N content, not more than 0.010% of P and moreover, not more than 0.03% of (P+5N)% even at welding heat-affected zone. As a result of it, the above steel is possessed very high low temperature toughness and also, size and distribution of nitride or carbonitride, are controlled as a means of disturbing solid solution making of nitride at about 1400°C of heating welding heat cycle and then, the high low temperature toughness is secured. That is, not less than one kind of inactive nitride, such as AlN, ZrN, TiN etc., or carbonitride, is produced in the steel and the size is made not less than 0.05μ. As a result of it, N content of the solid solution of welding heat-affected Zone is able to control not more than 25ppm by welding heat input in comparatively wide extent, such as 30W200KJ/cm.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12067178A JPS5547366A (en) | 1978-09-30 | 1978-09-30 | Steel for weld construction having high fracture toughness weld zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12067178A JPS5547366A (en) | 1978-09-30 | 1978-09-30 | Steel for weld construction having high fracture toughness weld zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5547366A true JPS5547366A (en) | 1980-04-03 |
Family
ID=14792036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12067178A Pending JPS5547366A (en) | 1978-09-30 | 1978-09-30 | Steel for weld construction having high fracture toughness weld zone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5547366A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60245768A (en) * | 1984-05-22 | 1985-12-05 | Nippon Steel Corp | High toughness steel for welding |
| JPS61238940A (en) * | 1985-04-12 | 1986-10-24 | Nippon Steel Corp | Low-temperature tough hardening steel excelling in toughness in weld zone |
| JPS61270354A (en) * | 1985-05-27 | 1986-11-29 | Kawasaki Steel Corp | High-toughness welding steel |
| JPS621842A (en) * | 1985-06-26 | 1987-01-07 | Nippon Steel Corp | Tough, high tension steel having superior toughness in weld zone |
| JPS636430U (en) * | 1986-06-30 | 1988-01-16 | ||
| KR100470050B1 (en) * | 2000-10-30 | 2005-02-04 | 주식회사 포스코 | High strength steel plate having superior toughness in weld heat-affected zone and method for manufacturing the same |
| CN111235461A (en) * | 2020-03-04 | 2020-06-05 | 内蒙古科技大学 | A kind of high-strength non-oriented electrical steel for driving motor with rare earth and high carbon new energy and its manufacturing method |
| JPWO2020208710A1 (en) * | 2019-04-09 | 2020-10-15 | ||
| WO2020208711A1 (en) * | 2019-04-09 | 2020-10-15 | 日本製鉄株式会社 | Steel material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5254612A (en) * | 1975-10-31 | 1977-05-04 | Nippon Kokan Kk <Nkk> | Steel for large heatinput welding |
| JPS5254611A (en) * | 1975-10-31 | 1977-05-04 | Nippon Kokan Kk <Nkk> | Steel for lrge heat input welding |
| JPS5262114A (en) * | 1975-11-19 | 1977-05-23 | Kawasaki Steel Co | Steel having good ductility at point welded above 50000 joule |
| JPS5362725A (en) * | 1976-11-17 | 1978-06-05 | Nippon Steel Corp | Welding structural steel with weld heat-affected zone of high toughness |
-
1978
- 1978-09-30 JP JP12067178A patent/JPS5547366A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5254612A (en) * | 1975-10-31 | 1977-05-04 | Nippon Kokan Kk <Nkk> | Steel for large heatinput welding |
| JPS5254611A (en) * | 1975-10-31 | 1977-05-04 | Nippon Kokan Kk <Nkk> | Steel for lrge heat input welding |
| JPS5262114A (en) * | 1975-11-19 | 1977-05-23 | Kawasaki Steel Co | Steel having good ductility at point welded above 50000 joule |
| JPS5362725A (en) * | 1976-11-17 | 1978-06-05 | Nippon Steel Corp | Welding structural steel with weld heat-affected zone of high toughness |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60245768A (en) * | 1984-05-22 | 1985-12-05 | Nippon Steel Corp | High toughness steel for welding |
| JPS61238940A (en) * | 1985-04-12 | 1986-10-24 | Nippon Steel Corp | Low-temperature tough hardening steel excelling in toughness in weld zone |
| JPS61270354A (en) * | 1985-05-27 | 1986-11-29 | Kawasaki Steel Corp | High-toughness welding steel |
| JPS621842A (en) * | 1985-06-26 | 1987-01-07 | Nippon Steel Corp | Tough, high tension steel having superior toughness in weld zone |
| JPS636430U (en) * | 1986-06-30 | 1988-01-16 | ||
| KR100470050B1 (en) * | 2000-10-30 | 2005-02-04 | 주식회사 포스코 | High strength steel plate having superior toughness in weld heat-affected zone and method for manufacturing the same |
| JPWO2020208710A1 (en) * | 2019-04-09 | 2020-10-15 | ||
| WO2020208710A1 (en) * | 2019-04-09 | 2020-10-15 | 日本製鉄株式会社 | Steel material |
| WO2020208711A1 (en) * | 2019-04-09 | 2020-10-15 | 日本製鉄株式会社 | Steel material |
| JPWO2020208711A1 (en) * | 2019-04-09 | 2020-10-15 | ||
| CN111235461A (en) * | 2020-03-04 | 2020-06-05 | 内蒙古科技大学 | A kind of high-strength non-oriented electrical steel for driving motor with rare earth and high carbon new energy and its manufacturing method |
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