JPS56166321A - Manufacture of nonrefined high tensile steel - Google Patents
Manufacture of nonrefined high tensile steelInfo
- Publication number
- JPS56166321A JPS56166321A JP7063180A JP7063180A JPS56166321A JP S56166321 A JPS56166321 A JP S56166321A JP 7063180 A JP7063180 A JP 7063180A JP 7063180 A JP7063180 A JP 7063180A JP S56166321 A JPS56166321 A JP S56166321A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- rolling
- nonrefined
- high tensile
- contg
- 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
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE: To manufacture a nonrefined high tensile steel having high strength and enabling an alloy saving by treating steel contg. a prescribed percentage each of C, Si and Mn as basic components while suitably combining the conditions of heating and rolling with those of accelerated cooling after the rolling.
CONSTITUTION: Steel is prepared contg. 0.13W0.30% C, 0.25W0.60% Si and 0.50W2.20% Mn as basic components or further contg. ≥1 kind among Cu, Ni, Cr, etc. The steel is heated to the Ac3 point or above and subjected to controlled rolling making the grains fine, especially rolling in a temp. zone under the recrystallization temp. to form unrecrystallized austenite grains. Before the unrecrystallized austenite recrystallizes, the steel is acceleratedly cooled at 1W60, especially 5W30°C/sec cooling rate without delay. Simultaneously with the accelerated cooling, dehydrogenation is effected by vacuum degassing or other method so as to control hydrogen Hc in the steel at the central part in the plate thickness direction to Hc(ppm) ≤1.10- 0.005σy. Thus, the desired nonrefined high tensile steel is manufactured.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7063180A JPS56166321A (en) | 1980-05-27 | 1980-05-27 | Manufacture of nonrefined high tensile steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7063180A JPS56166321A (en) | 1980-05-27 | 1980-05-27 | Manufacture of nonrefined high tensile steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56166321A true JPS56166321A (en) | 1981-12-21 |
Family
ID=13437170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7063180A Pending JPS56166321A (en) | 1980-05-27 | 1980-05-27 | Manufacture of nonrefined high tensile steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56166321A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1854562A1 (en) * | 2005-02-25 | 2007-11-14 | Nippon Steel Corporation | High-strength welded steel pipe excellent in hydrogen embrittlement cracking resistance of weld metal and process for producing the same |
| US20130034321A1 (en) * | 2011-08-01 | 2013-02-07 | Aktiebolaget Skf | Split bearing cage for rolling element bearing |
-
1980
- 1980-05-27 JP JP7063180A patent/JPS56166321A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1854562A1 (en) * | 2005-02-25 | 2007-11-14 | Nippon Steel Corporation | High-strength welded steel pipe excellent in hydrogen embrittlement cracking resistance of weld metal and process for producing the same |
| EP1854562A4 (en) * | 2005-02-25 | 2009-04-15 | Nippon Steel Corp | High-strength welded steel pipe excellent in hydrogen embrittlement cracking resistance of weld metal and process for producing the same |
| KR100991636B1 (en) * | 2005-02-25 | 2010-11-04 | 신닛뽄세이테쯔 카부시키카이샤 | High-strength welded steel pipe excellent in hydrogen embrittlement cracking resistance of weld metal and process for producing the same |
| US8653400B2 (en) | 2005-02-25 | 2014-02-18 | Nippon Steel & Sumitomo Metal Corporation | High strength welded steel tube superior in hydrogen embrittlement cracking resistance of weld metal and method of production of same |
| US20130034321A1 (en) * | 2011-08-01 | 2013-02-07 | Aktiebolaget Skf | Split bearing cage for rolling element bearing |
| US8894293B2 (en) * | 2011-08-01 | 2014-11-25 | Aktiebolaget Skf | Split bearing cage for rolling element bearing |
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