JPS56127750A - Structural high tensile steel with reduced stress aging brittleness - Google Patents
Structural high tensile steel with reduced stress aging brittlenessInfo
- Publication number
- JPS56127750A JPS56127750A JP2992480A JP2992480A JPS56127750A JP S56127750 A JPS56127750 A JP S56127750A JP 2992480 A JP2992480 A JP 2992480A JP 2992480 A JP2992480 A JP 2992480A JP S56127750 A JPS56127750 A JP S56127750A
- Authority
- JP
- Japan
- Prior art keywords
- high tensile
- tensile steel
- steel
- stress aging
- reduced 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
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE: To provide the titled structural high tensile steel almost free from the lowering of impact absorbing energy even after stress aging, that is, capable of preventing toughness deterioration due to the stress aging obtained by adding one or more of Ca, Mg to a steel added with V and N.
CONSTITUTION: The above described high tensile steel is constituted from 0.12W 0.25% C, 0.05W1.0% Si, 0.5W2.0% Mn, 0.025% or less P, 0.01% or less S, 0.006W0.06% Al, 0.03W0.20% V, 0.010W0.03% N and 0.0005W0.0070% Ca or/and 0.0005W0.0070% Mg and the remainder of Fe. Because said steel contains a large amount of V and N, the reinforcing action due to V N precipitation is sufficiently developed, for example, if a cooling speed after hot rolling is slow. Therefore, the thick high tensile steel material can be produced from said steel.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2992480A JPS56127750A (en) | 1980-03-10 | 1980-03-10 | Structural high tensile steel with reduced stress aging brittleness |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2992480A JPS56127750A (en) | 1980-03-10 | 1980-03-10 | Structural high tensile steel with reduced stress aging brittleness |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56127750A true JPS56127750A (en) | 1981-10-06 |
JPS6250548B2 JPS6250548B2 (en) | 1987-10-26 |
Family
ID=12289534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2992480A Granted JPS56127750A (en) | 1980-03-10 | 1980-03-10 | Structural high tensile steel with reduced stress aging brittleness |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56127750A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW541342B (en) | 2000-04-04 | 2003-07-11 | Nippon Steel Corp | Hot rolled h-shap steel having an uniform microstruture and mechanical properties |
-
1980
- 1980-03-10 JP JP2992480A patent/JPS56127750A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6250548B2 (en) | 1987-10-26 |
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