JPS54103731A - Heating method of blooms and billets for hot rolling of ferrite system stainless steel - Google Patents
Heating method of blooms and billets for hot rolling of ferrite system stainless steelInfo
- Publication number
- JPS54103731A JPS54103731A JP924578A JP924578A JPS54103731A JP S54103731 A JPS54103731 A JP S54103731A JP 924578 A JP924578 A JP 924578A JP 924578 A JP924578 A JP 924578A JP S54103731 A JPS54103731 A JP S54103731A
- Authority
- JP
- Japan
- Prior art keywords
- hot rolling
- blooms
- billets
- temperature
- heating
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To prevent possible cracks in the subsequent heating and rolling through slow heating up to the impact transition temperature in relation to the thickness of steel pieces in hot rolling of blooms and billets. CONSTITUTION:Anticorrosive ferrite system stanless blooms and billets mainly composed of 27-35% Cr, 0.5-5% Mo and Fe for the rest is heated slowly up to the impact transition temperature, at a rate of more than 0.02 min./ deg.C per 10mm in the thickness. This is performed by an indirect heating or with a low temperature furnace. Then, the temperature is raised up to the given level for hot rolling. This slow heating up to the impact transition temperature can prevent the development of cracks during the hot rolling regardless of the rate of subsequent rising temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP924578A JPS54103731A (en) | 1978-02-01 | 1978-02-01 | Heating method of blooms and billets for hot rolling of ferrite system stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP924578A JPS54103731A (en) | 1978-02-01 | 1978-02-01 | Heating method of blooms and billets for hot rolling of ferrite system stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54103731A true JPS54103731A (en) | 1979-08-15 |
Family
ID=11715015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP924578A Pending JPS54103731A (en) | 1978-02-01 | 1978-02-01 | Heating method of blooms and billets for hot rolling of ferrite system stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54103731A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5628266A (en) * | 1979-08-15 | 1981-03-19 | Matsushita Electric Ind Co Ltd | Pyrogenic composition |
-
1978
- 1978-02-01 JP JP924578A patent/JPS54103731A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5628266A (en) * | 1979-08-15 | 1981-03-19 | Matsushita Electric Ind Co Ltd | Pyrogenic composition |
| JPS6346116B2 (en) * | 1979-08-15 | 1988-09-13 | Matsushita Electric Ind Co Ltd |
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