CN1702187A - Ferritic rare earth alloy steel with strong anti-stress corrosion capability and heat exchanger, air cooler made of the same - Google Patents
Ferritic rare earth alloy steel with strong anti-stress corrosion capability and heat exchanger, air cooler made of the same Download PDFInfo
- Publication number
- CN1702187A CN1702187A CN 200410013193 CN200410013193A CN1702187A CN 1702187 A CN1702187 A CN 1702187A CN 200410013193 CN200410013193 CN 200410013193 CN 200410013193 A CN200410013193 A CN 200410013193A CN 1702187 A CN1702187 A CN 1702187A
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- Prior art keywords
- rare earth
- stress corrosion
- alloy steel
- earth alloy
- air cooler
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
An rare-earth alloyed steel 00Cr13RE resistant to stress corrosion of hydrogen sulfide and chloride ion, applying in the field of petroleum, chemical industry, metallurgy, electric force and so on, uses C, Cr, Si, Mn, S, P and RE as the basic constituent, and can be made into 00Cr13RE steel pipe. It can apply to pressure container such as the heat exchanger, air cooler and so on, and has strong resistance to stress corrosion of chloride and hydrogen sulfide.
Description
Technical field
The present invention relates to a kind of industries such as oil, chemical industry, metallurgy, electric power that are applied to, can resisting chlorides and the novel material of H 2 S stress corrosion environmental corrosion, and the cold exchange device made from this material.
Background technology
At present, known metallic substance is a lot, but in resisting chlorides and H 2 S stress corrosion environment, major part is all unsatisfactory, and general carbon steel does not have resistance to corrosion, and dual phase steel is too expensive, the manufacturing process complexity.
Summary of the invention
Technical problem to be solved by this invention is: the material that a kind of resistance to corrosion in certain resisting chlorides and H 2 S stress corrosion environment is provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: on the basis of ferritic stainless steel 0Cr13, reduce carbon content, add rare earth element, change the chemical ingredients and the mechanical property of material, and make heat-exchange equipment with this material, to reach erosion-resisting purpose.
0Cr13 is a kind of ferritic stainless steel that certain stress corrosion resistant is arranged, the existing steel major part of China is a sheet material, in petrochemical industry, be applied in the positions such as composite bed of tower tray, column internals and composition board more, resistance to corrosion is preferably arranged, but because its material is very difficult when drawn and rolled tube, also there are some insoluble problems in low the reaching in the device fabrication of lumber recovery, so the application of 0Cr13 has been subjected to very big restriction.
RE is a rare earth element, in steel, not only can purify metal, change inclusion morphology, reduce P, S content, the corrosion resistance nature and the machining property of raising steel that simultaneously also can be bigger, the ability that extremely strong desulfurization and deoxidation are arranged, this is confirmed in use in some steel at home.
Rare earth (RE) ratio relation of residue and sulphur in steel is: RE/S=1～6, its best ratio relation should be controlled between 2～4.
The present invention is on the basis of 0Cr13, reduces carbon content, increases rare earth, like this, can improve its corrosion resistance and stress range and enlarge.
Called after 00Cr13RE of the present invention, the chemical ingredients of 00Cr13RE is: C≤0.05%, Si≤1.00%, Mm≤1.00%, P≤0.030%, S≤0.030%, Cr:11～15%, RE:0.02～0.12%.
00Cr13RE of the present invention is owing to added rare earth alloy, reduced carbon content, make its chemical ingredients and mechanical property that very big change be arranged, increased its resistance to corrosion, improved its welding property, therefore can be widely used in and corrode in the industries such as petrochemical complex, metallurgical electric power on serious interchanger and the air cooler, therefore can in having muriate and H 2 S stress corrosion environment, promote the use of.
Claims (4)
1, a kind of fields such as oil, chemical industry, metallurgy, electric power that are applied to, the rare earth alloy steel of anti-H 2 S and chlorion stress corrosion, that concrete is 00Cr13RE.
2, according to claim 1, this rare earth alloy steel is basic chemical constitution composition with carbon (C), chromium (Cr), silicon (Si), manganese (Mn), sulphur (S), phosphorus (P) and RE.The chemical ingredients of 00Cr13RE is: C≤0.05%, Si≤1.00%, Mn≤1.00%, P≤0.030%, S≤0.030%, Cr:11～15%, RE:0.02～0.12%.
3, according to claim 1, this rare earth alloy steel can manufacture the 00Cr13RE steel pipe.
4, according to claim 1, this rare earth alloy steel can be widely used in the interchanger of the seriously corroded of industries such as oil, chemical industry, metallurgy, electric power, on the air cooler, and the resisting chlorides that can be stronger and the stress corrosion of hydrogen sulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013193 CN1702187A (en) | 2004-05-24 | 2004-05-24 | Ferritic rare earth alloy steel with strong anti-stress corrosion capability and heat exchanger, air cooler made of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013193 CN1702187A (en) | 2004-05-24 | 2004-05-24 | Ferritic rare earth alloy steel with strong anti-stress corrosion capability and heat exchanger, air cooler made of the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1702187A true CN1702187A (en) | 2005-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410013193 Pending CN1702187A (en) | 2004-05-24 | 2004-05-24 | Ferritic rare earth alloy steel with strong anti-stress corrosion capability and heat exchanger, air cooler made of the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1702187A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625209B (en) * | 2009-08-10 | 2010-09-29 | 江苏银环精密钢管股份有限公司 | Stainless steel heat transfer tube for nuclear power heat exchanger |
| CN102199728A (en) * | 2010-03-22 | 2011-09-28 | 内蒙古华业特钢股份有限公司 | Complex-phase reinforced rare-earth ferritic stainless steel for construction and manufacturing process thereof |
| CN107238305A (en) * | 2017-06-22 | 2017-10-10 | 任高廷 | A kind of three sections of two-chamber tri-state phase transformation superconduction heat exchange pipes |
-
2004
- 2004-05-24 CN CN 200410013193 patent/CN1702187A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625209B (en) * | 2009-08-10 | 2010-09-29 | 江苏银环精密钢管股份有限公司 | Stainless steel heat transfer tube for nuclear power heat exchanger |
| CN102199728A (en) * | 2010-03-22 | 2011-09-28 | 内蒙古华业特钢股份有限公司 | Complex-phase reinforced rare-earth ferritic stainless steel for construction and manufacturing process thereof |
| CN107238305A (en) * | 2017-06-22 | 2017-10-10 | 任高廷 | A kind of three sections of two-chamber tri-state phase transformation superconduction heat exchange pipes |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |