JPS54110914A - High strength and high toughness steel - Google Patents
High strength and high toughness steelInfo
- Publication number
- JPS54110914A JPS54110914A JP1880178A JP1880178A JPS54110914A JP S54110914 A JPS54110914 A JP S54110914A JP 1880178 A JP1880178 A JP 1880178A JP 1880178 A JP1880178 A JP 1880178A JP S54110914 A JPS54110914 A JP S54110914A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- toughness
- represented
- relationship
- pressure vessel
- 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
Abstract
PURPOSE: A high strength and high toughness steel most suitable as steel plate for pressure vessel in the homogenized and tempered state which is manufactured by the addition of a proper amount of an alloy element capable of reducing the amount of C and also of enhancing yield strength without damaging toughness.
CONSTITUTION: A steel, containing 0.01 to 0.12% C, 0W20 to 0.50% Si, 1.30 to 1.60% Mn, 0.10 to 0.30% Cu, 0.20 to 0.50% Ni, 0.10 to 0.30% Cr, 0.08 to 0.50% Mo, 0.04 to 0.10% V, 0.01 to 0.03% Nb, 0.02 to 0.06% Al, and remaining-Fe and having a Ceq value of 0.44 to 0.48, represented by the relationship Ceq = C + (Si/24) + (Mn/6) + (Ni/40) + (Cr/5) + (Mo/4) + (V/14) and a PCM value of less than 0.23, represented by the relationship PCM = C + (Si/30) + (Mn/20) + (Cu/20) + (Cr/20) + (Ni/60) + (Mo/15) + (V/10) + 5B, is subjected to a homogenizing and tempering treatment for application. The steel plate has a yielding point of more than 25 kg/mm2 at 350°C and a toughness level of vTs -46°C, and also is excellent in weldability. Thus, it is most suitable for pressure vessel.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1880178A JPS54110914A (en) | 1978-02-20 | 1978-02-20 | High strength and high toughness steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1880178A JPS54110914A (en) | 1978-02-20 | 1978-02-20 | High strength and high toughness steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54110914A true JPS54110914A (en) | 1979-08-30 |
Family
ID=11981684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1880178A Pending JPS54110914A (en) | 1978-02-20 | 1978-02-20 | High strength and high toughness steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54110914A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63219552A (en) * | 1987-03-06 | 1988-09-13 | Kawasaki Steel Corp | Steel material for centrifugal casting mold having excellent high temperature strength and toughness |
| EP1932934A1 (en) * | 2006-12-15 | 2008-06-18 | Kabushiki Kaisha Kobe Seiko Sho | High-strenght steel plate resistant to strenght reduction resulting from stress relief annealing and excellent in weldability |
-
1978
- 1978-02-20 JP JP1880178A patent/JPS54110914A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63219552A (en) * | 1987-03-06 | 1988-09-13 | Kawasaki Steel Corp | Steel material for centrifugal casting mold having excellent high temperature strength and toughness |
| JP2538905B2 (en) * | 1987-03-06 | 1996-10-02 | 川崎製鉄株式会社 | Steel material for centrifugal casting molds with excellent high temperature strength and toughness |
| EP1932934A1 (en) * | 2006-12-15 | 2008-06-18 | Kabushiki Kaisha Kobe Seiko Sho | High-strenght steel plate resistant to strenght reduction resulting from stress relief annealing and excellent in weldability |
| US8361249B2 (en) | 2006-12-15 | 2013-01-29 | Kobe Steel, Ltd. | High-strength steel plate resistant to strength reduction resulting from stress relief annealing and excellent in weldability |
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