CN1702186A - Heat exchanger, air cooler made of ultra-low carbon ferritic stainless steel - Google Patents
Heat exchanger, air cooler made of ultra-low carbon ferritic stainless steel Download PDFInfo
- Publication number
- CN1702186A CN1702186A CN 200410013195 CN200410013195A CN1702186A CN 1702186 A CN1702186 A CN 1702186A CN 200410013195 CN200410013195 CN 200410013195 CN 200410013195 A CN200410013195 A CN 200410013195A CN 1702186 A CN1702186 A CN 1702186A
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- China
- Prior art keywords
- steel
- 00cr13al
- air cooler
- equal
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- 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.)
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Classifications
-
- 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
A ferritic stainless steel resistant to stress corrosion of hydrogen sulfide and chloride ion, specifically to say 00Cr13Al, applies in the field of petroleum, chemical industry, metallurgy, electric force and so on. The alloyed steel uses C, Cr, Si, Mn, Al, S and P as the basic constituent, and chemical constituent of the 00Cr13Al is as following: C less than or equal to 0.05%, Si less than or equal to 1.00%, Mn less than or equal to 1.00%, Al 0.10-0.40%, P less than or equal to 0.030%, S less than or equal to 0.030%, Cr 11-15%. The alloyed steel can be made into the 00Cr13Al steel pipe. And it can extensively apply to heat exchanger and air cooler in the field of petroleum, chemical industry, metallurgy, electric force and so on, resisting stress corrosion, pitting corrosion and intercrystalline corrosion.
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 resistance to corrosion material in certain resisting chlorides and H 2 S stress corrosion environment.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: reduce the steel pipe that carbon content is made 00Cr13Al on the basis of ferritic stainless steel 0Cr13Al, make heat exchange element with this steel pipe, make interchanger and air cooler, to reach erosion-resisting purpose.
0Cr13Al 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 0Cr13Al has been subjected to very big restriction.
The present invention reduces carbon content on the 0Cr13Al basis, its stress corrosion resistant, spot corrosion and intergranular corrosion ability are all increased, and can improve steel performances such as its weldability, toughness simultaneously.
The trade mark of this steel is 00Cr13Al, and its chemical ingredients is: C≤0.05%, Si≤1.00%, Mn≤1.00%, Al:0.10～0.40%:P≤0.030%, S≤0.030%, Cr:11～15%.
The ferrite stainless heat exchanger of called after stress corrosion resistant of the present invention and air cooler, on the basis of 0Cr13Al sheet material, reduce carbon content, be rolled into tubing, utilize its tubing to do the heat exchange element of interchanger and air cooler, tube sheet adopts the composition board of 0Cr13 or 0Cr13Al, adopts intensity weldering welding between heat transfer tube and the tube sheet, wlding and mother metal coupling, solved the integral solder problem, this equipment integral resistance to corrosion is significantly improved.
The present invention has stronger anti-H 2 S and chloride ion corrosion ability, can be widely used in industries such as petrochemical complex, metallurgical electric power, can promote the use of.
Claims (4)
1, a kind of fields such as oil, chemical industry, metallurgy, electric power that are applied to, the ferritic stainless steel of anti-H 2 S and chlorion stress corrosion, that concrete is 00Cr13Al.
2, according to claim 1, this steel alloy is basic chemical constitution composition with carbon (C), chromium (Cr), silicon (Si), manganese (Mn), aluminium (Al), sulphur (S), phosphorus (P), and concrete chemical ingredients is: C≤0.05%, Si≤1.00%, Mn≤1.00%, Al:0.10～0.40%; P≤0.030%, S≤0.030%, Cr:11～15%.
3, according to claim 1, this steel alloy can manufacture the 00Cr13Al steel pipe.
4, according to claim 1, this ferritic steel can be widely used in the interchanger of industries such as oil, chemical industry, metallurgy, electric power, on the air cooler, has stress corrosion, pitting attack and the intergranular corrosion ability of stronger resisting chlorides and hydrogen sulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013195 CN1702186A (en) | 2004-05-24 | 2004-05-24 | Heat exchanger, air cooler made of ultra-low carbon ferritic stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013195 CN1702186A (en) | 2004-05-24 | 2004-05-24 | Heat exchanger, air cooler made of ultra-low carbon ferritic stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1702186A true CN1702186A (en) | 2005-11-30 |
Family
ID=35632146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410013195 Pending CN1702186A (en) | 2004-05-24 | 2004-05-24 | Heat exchanger, air cooler made of ultra-low carbon ferritic stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1702186A (en) |
-
2004
- 2004-05-24 CN CN 200410013195 patent/CN1702186A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |