CN106350744A - Corrosion-resistant steel plate used in ocean environment and production method of corrosion-resistant steel plate - Google Patents
Corrosion-resistant steel plate used in ocean environment and production method of corrosion-resistant steel plate Download PDFInfo
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- CN106350744A CN106350744A CN201610784595.3A CN201610784595A CN106350744A CN 106350744 A CN106350744 A CN 106350744A CN 201610784595 A CN201610784595 A CN 201610784595A CN 106350744 A CN106350744 A CN 106350744A
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- steel plate
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention relates to the field of metallurgy, and in particular to a corrosion-resistant steel plate used in an ocean environment and a production method of the corrosion-resistant steel plate. The corrosion-resistant steel plate used in the ocean environment comprises the following chemical components in percentage by weight: 0.05-0.08 part of C, 0.28-0.57% of Si, 0.36-1.32% of Mn, less than or equal to 0.015% of P, less than or equal to 0.005% of S, 0.12-0.35% of Sn, 0.5-1.2% of Cu, 0.8-1.3% of Cr, 0.8-1.6% of Ni, 0.3-0.5% of V, 0.03-0.05% of Ti, 0.03-0.05% of Nb and the balance of Fe and inevitable impurities. By adopting the corrosion-resistant steel plate used in the ocean environment, and the production method of the corrosion-resistant steel plate, the prepared steel plate is applicable to rigorous corrosive environments with high dampness and hotness, high salinity and rich plankton in the South China Sea, and the corrosion resistance of the steel plate to different areas of oceans can be greatly improved.
Description
Technical field
The present invention relates to field of metallurgy, specially a kind of corrosion resistant plate for marine environment and its production method.
Background technology
In marine environment, corrosion is the main failure mode of ship and offshore structure steel, and in four big marine sites
In, the South Sea has the seas such as high damp and hot, high salinity and the various, enormous amount of plankton species relative to Bohai and Yellow Seas and the East Sea
Foreign environmental quality, according to investigations, the South Sea, the East China Sea and the Yellow Sea, the Bohai Sea four big marine site third season ocean surface mean temperature are respectively
29.1 DEG C, 28.0 DEG C, 24.1 DEG C, 23.5 DEG C, four big marine site average salt degree are followed successively by 33.01,32.37,30.04,29.84, four
Big marine site plankton species number is followed successively by 1658,1085,478,499, the South Sea so Service Environment of harshness and people couple
The requirement of Marine Engineering Steel service life proposes huge challenge to the engineering steel being applied to South Sea complex environment, and it is
Become one of world-class difficult problem of current steel industry.
Content of the invention
For above-mentioned technical problem, the present invention provides a kind of corrosion resistant plate for marine environment and its production method.
Concrete technical scheme is:
For the corrosion resistant plate of marine environment, its chemical composition by weight percentage is: c0.05～0.08, si0.28
～0.57, mn0.36～1.32, p≤0.015, s≤0.005, sn0.12～0.35, cu0.5～1.2, cr0.8～1.3,
Ni0.8～1.6, v0.3～0.5, ti0.03～0.05, nb0.03～0.05, balance of fe and inevitable impurity.
Corrosion resistant plate for marine environment and its production method are it is characterised in that described production method includes following mistake
Journey:
(1) electric arc furnace limestone white lime single slag smelting, it is 3.4～4.0 that finishing slag basicity controls in r；
(2), in refining process, using calcium aluminate residue adjustment, finishing slag basicity controls more than 2.2；
(3) in casting process, the degree of superheat is less than 20 DEG C, and second cooling adopts weak cold mode；
(4) continuous casting billet carries out stacking slow cooling to room temperature after cutting scale；
(5) slab soaking zone time in heating furnace is not less than 40min, and tapping temperature controls at 1130～1150 DEG C；
(6) adopt two-phase control rolling, it is ensured that the equal ＞ 20% of last two percentage pass reductions when rolling in recrystallization zone, then tie
920 DEG C of crystalline region finishing temperature ＞；Workpiece thickness selects 3 times of temperature control plate blank, and when Unhydrated cement rolls, started temperature controls
At 860～880 DEG C, final temperature controls at 850 DEG C；
(7) open cold temperature control after rolling at 800 DEG C, final cooling temperature controls at 650 DEG C, rate of cooling is 8 DEG C/s；
(8) carry out stacking slow cooling after thermal straightening, slow cooling temperature is not less than 250 DEG C, slow cooling 15h.
Corrosion resistant plate provided by the present invention for marine environment and its production method, the steel plate manufacturing is applied to height
The various South Sea harshness corrosive environment of damp and hot, high salinity, plankton, the corrosive nature of resistance to ocean zones of different all obtains significantly
Improve.
Specific embodiment
For the ease of understanding the present invention, by specific embodiment, the present invention will be described more fully below.But
It is that the present invention can realize in many different forms however it is not limited to embodiment described herein.On the contrary, providing this
The purpose of a little embodiments is to make the understanding to the disclosure more thoroughly comprehensive.
For the corrosion resistant plate of marine environment, its chemical composition by weight percentage is: c0.05～0.08, si0.28
～0.57, mn0.36～1.32, p≤0.015, s≤0.005, sn0.12～0.35, cu0.5～1.2, cr0.8～1.3,
Ni0.8～1.6, v0.3～0.5, ti0.03～0.05, nb0.03～0.05, balance of fe and inevitable impurity.
Corrosion resistant plate for marine environment and its production method are it is characterised in that described production method includes following mistake
Journey:
(1) electric arc furnace limestone white lime single slag smelting, it is 3.4～4.0 that finishing slag basicity controls in r；
(2), in refining process, using calcium aluminate residue adjustment, finishing slag basicity controls more than 2.2；
(3) in casting process, the degree of superheat is less than 20 DEG C, and second cooling adopts weak cold mode；
(4) continuous casting billet carries out stacking slow cooling to room temperature after cutting scale；
(5) slab soaking zone time in heating furnace is not less than 40min, and tapping temperature controls at 1130～1150 DEG C；
(6) adopt two-phase control rolling, it is ensured that the equal ＞ 20% of last two percentage pass reductions when rolling in recrystallization zone, then tie
920 DEG C of crystalline region finishing temperature ＞；Workpiece thickness selects 3 times of temperature control plate blank, and when Unhydrated cement rolls, started temperature controls
At 860～880 DEG C, final temperature controls at 850 DEG C；
(7) open cold temperature control after rolling at 800 DEG C, final cooling temperature controls at 650 DEG C, rate of cooling is 8 DEG C/s；
(8) carry out stacking slow cooling after thermal straightening, slow cooling temperature is not less than 250 DEG C, slow cooling 15h.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (2)
1. it is used for the corrosion resistant plate of marine environment it is characterised in that its chemical composition by weight percentage is: c0.05～
0.08th, si0.28～0.57, mn0.36～1.32, p≤0.015, s≤0.005, sn0.12～0.35, cu0.5～1.2,
Cr0.8～1.3, ni0.8～1.6, v0.3～0.5, ti0.03～0.05, nb0.03～0.05, balance of fe and inevitable
Impurity.
2. the production method of the corrosion resistant plate for marine environment according to claim 1 is it is characterised in that described production
Method includes procedure below:
(1) electric arc furnace limestone white lime single slag smelting, it is 3.4～4.0 that finishing slag basicity controls in r；
(2), in refining process, using calcium aluminate residue adjustment, finishing slag basicity controls more than 2.2；
(3) in casting process, the degree of superheat is less than 20 DEG C, and second cooling adopts weak cold mode；
(4) continuous casting billet carries out stacking slow cooling to room temperature after cutting scale；
(5) slab soaking zone time in heating furnace is not less than 40min, and tapping temperature controls at 1130 ~ 1150 DEG C；
(6) adopt two-phase control rolling, when the rolling it is ensured that equal ＞ 20% of last two percentage pass reductions, recrystallization zone in recrystallization zone
920 DEG C of finishing temperature ＞；Workpiece thickness selects 3 times of temperature control plate blank, and when Unhydrated cement rolls, started temperature controls 860
~ 880 DEG C, final temperature controls at 850 DEG C；
(7) open cold temperature control after rolling at 800 DEG C, final cooling temperature controls at 650 DEG C, rate of cooling is 8 DEG C/s；
(8) carry out stacking slow cooling after thermal straightening, slow cooling temperature is not less than 250 DEG C, slow cooling 15h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784595.3A CN106350744A (en) | 2016-08-31 | 2016-08-31 | Corrosion-resistant steel plate used in ocean environment and production method of corrosion-resistant steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784595.3A CN106350744A (en) | 2016-08-31 | 2016-08-31 | Corrosion-resistant steel plate used in ocean environment and production method of corrosion-resistant steel plate |
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| Publication Number | Publication Date |
|---|---|
| CN106350744A true CN106350744A (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610784595.3A Pending CN106350744A (en) | 2016-08-31 | 2016-08-31 | Corrosion-resistant steel plate used in ocean environment and production method of corrosion-resistant steel plate |
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| Country | Link |
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| CN (1) | CN106350744A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903550A (en) * | 2007-12-21 | 2010-12-01 | 安赛乐米塔尔商业Rps有限公司 | Corrosion-resisting steel with the Yu Haiyang application |
| CN103741057A (en) * | 2014-01-26 | 2014-04-23 | 北京科技大学 | Steel plate with low density and high marine environment resistance and production technology thereof |
-
2016
- 2016-08-31 CN CN201610784595.3A patent/CN106350744A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903550A (en) * | 2007-12-21 | 2010-12-01 | 安赛乐米塔尔商业Rps有限公司 | Corrosion-resisting steel with the Yu Haiyang application |
| CN103741057A (en) * | 2014-01-26 | 2014-04-23 | 北京科技大学 | Steel plate with low density and high marine environment resistance and production technology thereof |
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Application publication date: 20170125 |