JPS5460217A - Low alloy steel for high temperature structures - Google Patents
Low alloy steel for high temperature structuresInfo
- Publication number
- JPS5460217A JPS5460217A JP12579277A JP12579277A JPS5460217A JP S5460217 A JPS5460217 A JP S5460217A JP 12579277 A JP12579277 A JP 12579277A JP 12579277 A JP12579277 A JP 12579277A JP S5460217 A JPS5460217 A JP S5460217A
- Authority
- JP
- Japan
- Prior art keywords
- high temperature
- low alloy
- alloy steel
- equation
- value
- 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: An economical low alloy steel which is used for chemical reactors, etc. used at high temperatures and contains a specific alloy element, having a high temperature strength even for thick steel plate and also showing excellent toughness even after undergoing a heat history such as cold processing, welding, etc..
CONSTITUTION: The low alloy steel for high temperature structures composed of 0.10 to 0.20% C, 0.10 to 0.50% Si, 1.1 to 1.8% Mn, 0.10 to 0.30% Cu, 0.10 to 0.30% Mo, 0.01 to 0.06% V, 0.03 to 0,10% Al, 0.01 or less S, and Fe, showing the value of the equation 1, relating to Al, S, C, and V, to be more than 1.2. The composition mentioned avove may contain 0.1 to 0.3% Ni. And, the addition of Nb to the composition results in the fining of crystal particles, thus enhancing impact resistance and the yielding point at high temperatures. The amount of Nb is 0.05% and, in this case, the value of the equation II is 1.2 or more
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12579277A JPS5460217A (en) | 1977-10-21 | 1977-10-21 | Low alloy steel for high temperature structures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12579277A JPS5460217A (en) | 1977-10-21 | 1977-10-21 | Low alloy steel for high temperature structures |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5460217A true JPS5460217A (en) | 1979-05-15 |
JPS5631868B2 JPS5631868B2 (en) | 1981-07-24 |
Family
ID=14918974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12579277A Granted JPS5460217A (en) | 1977-10-21 | 1977-10-21 | Low alloy steel for high temperature structures |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5460217A (en) |
-
1977
- 1977-10-21 JP JP12579277A patent/JPS5460217A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5631868B2 (en) | 1981-07-24 |
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