JPS6468421A - Production of high-tensile steel plate for construction - Google Patents
Production of high-tensile steel plate for constructionInfo
- Publication number
- JPS6468421A JPS6468421A JP22527287A JP22527287A JPS6468421A JP S6468421 A JPS6468421 A JP S6468421A JP 22527287 A JP22527287 A JP 22527287A JP 22527287 A JP22527287 A JP 22527287A JP S6468421 A JPS6468421 A JP S6468421A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- temp
- range
- steel plate
- slab
- 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 produce a steel plate which has desired yield strength and has a low yield ratio and good toughness in combination by heating a steel specified in the contents of C, Si, Mn, and V to a specific temp. range and hot rolling this steel, then tempering the steel after rapid cooling down to a specific temp. range. CONSTITUTION:The steel consisting, by weight, 0.05-0.20% C, 0.05-0.75% Si, 0.30-2.20% Mn, 0.001-0.100% V, 0.005-0.080% solAl, <=0.01% N, and the balance Fe and inevitable impurities is smelted and is made into a slab. This steel slab is heated to a 1,000-1,250 deg.C temp. range and is hot rolled; in succession, the steel sheet is rapidly cooled at >=2.5 deg.C/sec cooling rate in the central part of the plate thickness from the Ar3 point or above. The rapid cooling is stopped in a 600-200 deg.C temp. range and the steel plate is tempered to the temp. below the Ac1 point. One or more than one kinds of Cu, Ni, Cr, Mo, Nb, B, and Ti are incorporated at adequate ratios or above at need into this steel compsn. The high tensile steel plate for buildings which is applicable to high-rise buildings and has less residual stresses is thereby stably produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22527287A JPS6468421A (en) | 1987-09-10 | 1987-09-10 | Production of high-tensile steel plate for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22527287A JPS6468421A (en) | 1987-09-10 | 1987-09-10 | Production of high-tensile steel plate for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6468421A true JPS6468421A (en) | 1989-03-14 |
Family
ID=16826726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22527287A Pending JPS6468421A (en) | 1987-09-10 | 1987-09-10 | Production of high-tensile steel plate for construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6468421A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0625737A (en) * | 1992-07-10 | 1994-02-01 | Nippon Steel Corp | Manufacture for thermalrefined ht 590 steel excellent in uniform elongation |
| KR100414626B1 (en) * | 1998-12-29 | 2004-03-31 | 주식회사 포스코 | Manufacturing Method of Structural Steel Plate with Resistance Composite Ratio |
| US11460831B2 (en) | 2017-09-29 | 2022-10-04 | Fanuc Corporation | Numerical control system |
-
1987
- 1987-09-10 JP JP22527287A patent/JPS6468421A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0625737A (en) * | 1992-07-10 | 1994-02-01 | Nippon Steel Corp | Manufacture for thermalrefined ht 590 steel excellent in uniform elongation |
| KR100414626B1 (en) * | 1998-12-29 | 2004-03-31 | 주식회사 포스코 | Manufacturing Method of Structural Steel Plate with Resistance Composite Ratio |
| US11460831B2 (en) | 2017-09-29 | 2022-10-04 | Fanuc Corporation | Numerical control system |
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