JPS56119725A - Manufacture of high-toughness high-tensile steel products - Google Patents
Manufacture of high-toughness high-tensile steel productsInfo
- Publication number
- JPS56119725A JPS56119725A JP2300480A JP2300480A JPS56119725A JP S56119725 A JPS56119725 A JP S56119725A JP 2300480 A JP2300480 A JP 2300480A JP 2300480 A JP2300480 A JP 2300480A JP S56119725 A JPS56119725 A JP S56119725A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- low alloy
- manufacture
- alloy steel
- steel products
- 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 obtain steel products with high toughness and strength by heating a carbon steel or a low alloy steel consisting of specified basic components to a specified temp. followed by reduction under specified conditions.
CONSTITUTION: A carbon steel or an Nb-free low alloy steel is heated to 850W 1,300°C and reduced one or more at ≥8% reduction ratio per pass and a rolling strain speed represented by the equation in the recrystallized austenite temp. zone of 1,050W850°C. The steel contains ≤0.8% C, ≤3.0% Si, ≤5.0% Mn and ≤0.1% Al as basic components. The low alloy steel contains one or ≥2 kinds among ≤0.2% V, ≤10.0% Ni, ≤10.0% Cr, ≤2.0% Mo, ≤1.0% Cu, ≤0.5% Ti, ≤0.2% rare earth element, ≤0.2% Ca and ≤0.2% Zr. The upper limit value of the rolling strain speed is set to 35sec-1.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2300480A JPS56119725A (en) | 1980-02-25 | 1980-02-25 | Manufacture of high-toughness high-tensile steel products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2300480A JPS56119725A (en) | 1980-02-25 | 1980-02-25 | Manufacture of high-toughness high-tensile steel products |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56119725A true JPS56119725A (en) | 1981-09-19 |
JPS617443B2 JPS617443B2 (en) | 1986-03-06 |
Family
ID=12098347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2300480A Granted JPS56119725A (en) | 1980-02-25 | 1980-02-25 | Manufacture of high-toughness high-tensile steel products |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56119725A (en) |
-
1980
- 1980-02-25 JP JP2300480A patent/JPS56119725A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS617443B2 (en) | 1986-03-06 |
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