CN101307409A - Material of furnace tube for hydrocracking device and stock method - Google Patents
Material of furnace tube for hydrocracking device and stock method Download PDFInfo
- Publication number
- CN101307409A CN101307409A CNA2007100406354A CN200710040635A CN101307409A CN 101307409 A CN101307409 A CN 101307409A CN A2007100406354 A CNA2007100406354 A CN A2007100406354A CN 200710040635 A CN200710040635 A CN 200710040635A CN 101307409 A CN101307409 A CN 101307409A
- Authority
- CN
- China
- Prior art keywords
- percent
- less
- alloy
- equal
- iron
- 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
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a method for selecting and preparing material for a furnace tube of a hydrocracking device. The invention relates to a method for sorting and preparing material for a seamless steel tube, which improves the elevated temperature strength of a pipeline through reducing the phosphor content in material; the invention is characterized in that: the seamless steel tube comprises the following compositions in percentage by weight: 0.04 to 0.08 percent of C element, 0.35 to 0.75 percent of Si element, 1 to 2 percent of Mn element, less than or equal to 0.020 percent of P element, less than or equal to 0.008 percent of S element, 18 to 19 percent of Cr element, 10 to 13 percent of Ni element, less than or equal to 0.2 percent of Cu element, less than or equal to 0.03 percent of N, less than or equal to 10 percent of Nb and Ta elements, and 1.0 percent of C; the material selection method lies in that: pure iron with the P content less than or equal to 0.005 percent is selected as an iron base material; iron alloy is selected as a basic alloy material, wherein, the chrome content in the iron alloy is more than 65 percent, the phosphor content in the iron alloy is less than 0.03 percent; the total electrolytic nickel and chrome is not less than 99.97 percent; and niobium alloy selects ferrocolumbium of over 70 A.
Description
Technical field
The present invention relates to a kind of method of selecting materials and getting the raw materials ready of weldless steel tube, is selecting materials and getting the raw materials ready method of boiler tube for hydrocracking unit concretely.
Background technology
In recent years, along with China developing rapidly aspect the petrochemical complex, and the needs of national economic development, the ability of hydroeracking unit constantly increases, and the demand of boiler tube for hydrocracking unit is also further increased.Because the content of impurity is more in the crude oil, the working condition of boiler tube is more abominable, and the design temperature and the pressure capability of boiler tube are also more and more higher, and this length that just requires the pressure furnace pipe to have high hot strength, erosion resistance and pipeline meets the requirements.At present the manufacturing process of the weldless steel tube of China generally comprise select materials and get the raw materials ready-smelt-pour into a mould-forge-hot piercing-rolling-steps such as thermal treatment.Wherein in the step of getting the raw materials ready of selecting materials, generally select iron alloy and raw steel for use, the phosphorus content of the steel pipe after it is made is more than or equal to 0.03, thereby the material fragility of producing is big, and intensity reduces, and can not reach the requirement of weldless steel tube.
Summary of the invention
The invention provides a kind of new method of selecting materials and get the raw materials ready, improve the hot strength of pipeline by the content that reduces phosphorus in the material.
The present invention solves above-mentioned technical problem by the following technical solutions, the selecting materials and get the raw materials ready method of a kind of boiler tube for hydrocracking unit, this method comprises: select materials and get the raw materials ready: selecting for use P content to be less than or equal to 0.005% pure iron is the iron-based raw material, selects for use iron alloy as basic alloy raw material.
Embodiment
The selecting materials and get the raw materials ready method of a kind of boiler tube for hydrocracking unit, its elemental composition comprises: C element 0.04～0.08%, Si element 0.35～0.75%, Mn element 1～2%, P element≤0.020%, S element≤0.008%, Cr element 18～19%, Ni element 10～13%, Cu element≤0.2%, N element≤0.03%, Nb+Ta element≤10%C%～1.0%.
Selecting for use P content to be less than or equal to 0.005% pure iron is the iron-based raw material, selects for use iron alloy as basic alloy raw material.Wherein the content of chromium is greater than 65% in the iron alloy, and phosphorus content is less than 0.03%; The total content of electrolytic nickel and cobalt is not less than 99.97%, and niobium alloy is selected the above ferro-niobium of 70A for use.
Select blocky iron alloy and lime for use, wherein lime is 1 80-60mm such as product such as grade, and ferrotianium is 50-100mm.
Select for use through baking exsiccant refractory materials, alloy and covering slag, can obtain boiler tube for hydrocracking unit through smelting-cast-forging-hot piercing-rolling-steps such as thermal treatment.
Claims (3)
1. a boiler tube for hydrocracking unit selects materials and gets the raw materials ready method, its elemental composition comprises: C element 0.04～0.08%, Si element 0.35～0.75%, Mn element 1～2%, P element≤0.020%, S element≤0.008%, Cr element 18～19%, Ni element 10～13%, Cu element≤0.2%, N element≤0.03%, Nb+Ta element≤10%C%～1.0%, its method of selecting materials is: selecting for use P content to be less than or equal to 0.005% pure iron is the iron-based raw material, selects for use iron alloy as basic alloy raw material.Wherein the content of chromium is greater than 65% in the iron alloy, and phosphorus content is less than 0.03%; The total content of electrolytic nickel and cobalt is not less than 99.97%, and niobium alloy is selected the above ferro-niobium of 70A for use.
2, according to the method for selecting materials and get the raw materials ready of claims 1 described a kind of boiler tube for hydrocracking unit, it is characterized in that: select blocky iron alloy and lime for use, wherein lime is 1 80-60mm such as product such as grade, and ferrotianium is 50-100mm.
3, according to the method for selecting materials and get the raw materials ready of claims 1 described a kind of boiler tube for hydrocracking unit, it is characterized in that: select for use through baking exsiccant refractory materials, alloy and covering slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100406354A CN101307409A (en) | 2007-05-15 | 2007-05-15 | Material of furnace tube for hydrocracking device and stock method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100406354A CN101307409A (en) | 2007-05-15 | 2007-05-15 | Material of furnace tube for hydrocracking device and stock method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101307409A true CN101307409A (en) | 2008-11-19 |
Family
ID=40124084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100406354A Pending CN101307409A (en) | 2007-05-15 | 2007-05-15 | Material of furnace tube for hydrocracking device and stock method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101307409A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764988A (en) * | 2011-05-06 | 2012-11-07 | 浦杰 | High temperature resistant alloy furnace tube and machining production line of tube bundle |
| CN101629098B (en) * | 2009-08-03 | 2012-12-26 | 中海石油炼化有限责任公司 | Hydrocracking equipment for high-acid-containing raw oil and hydrocracking method using same |
| US9272256B2 (en) | 2011-03-31 | 2016-03-01 | Uop Llc | Process for treating hydrocarbon streams |
| US9296958B2 (en) | 2011-09-30 | 2016-03-29 | Uop Llc | Process and apparatus for treating hydrocarbon streams |
| CN109778077A (en) * | 2017-11-10 | 2019-05-21 | 大连华锐重工集团股份有限公司 | The smelting process of one seed nucleus main pump pump case material |
-
2007
- 2007-05-15 CN CNA2007100406354A patent/CN101307409A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629098B (en) * | 2009-08-03 | 2012-12-26 | 中海石油炼化有限责任公司 | Hydrocracking equipment for high-acid-containing raw oil and hydrocracking method using same |
| US9272256B2 (en) | 2011-03-31 | 2016-03-01 | Uop Llc | Process for treating hydrocarbon streams |
| CN102764988A (en) * | 2011-05-06 | 2012-11-07 | 浦杰 | High temperature resistant alloy furnace tube and machining production line of tube bundle |
| CN102764988B (en) * | 2011-05-06 | 2014-04-02 | 浦杰 | High temperature resistant alloy furnace tube and machining production line of tube bundle |
| US9296958B2 (en) | 2011-09-30 | 2016-03-29 | Uop Llc | Process and apparatus for treating hydrocarbon streams |
| CN109778077A (en) * | 2017-11-10 | 2019-05-21 | 大连华锐重工集团股份有限公司 | The smelting process of one seed nucleus main pump pump case material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2020125543A (en) | High strength, corrosion resistant austenitic alloys | |
| CN100432262C (en) | Rare earth-containing high-nitrogen ultralow-nickel super-duplex stainless steel alloy materials and method for preparing same | |
| CN100500917C (en) | Sulfur erosion resisting steel smelting method | |
| CN102330035B (en) | Heat resistant steel, and heat resistant steel pipe and manufacturing method thereof | |
| CN101886228B (en) | Low carbon martensite aged stainless steel with high strength high toughness and high decay resistance performances | |
| CN101542002A (en) | Low-alloy steel, seamless steel pipe for oil well, and process for producing seamless steel pipe | |
| CN109642291A (en) | Austenite stainless steel | |
| CN101558180A (en) | Duplex stainless steel alloy and use of this alloy | |
| CN104789816A (en) | Ni-based corrosion resistant alloy for high-acidity oil-gas field and manufacturing method of oil casing of Ni-based corrosion resistant alloy for high-acidity oil-gas field | |
| CN101684530A (en) | Ultra high-temperature resistant nickel-chrome alloy and manufacturing method thereof | |
| CN102162067B (en) | Steel for anticorrosion sucker rods in oil field and production method thereof | |
| CN101307409A (en) | Material of furnace tube for hydrocracking device and stock method | |
| CN101343714B (en) | 30CrMnSiB steel, weldless steel tube for cylinder and method of manufacturing the same | |
| CN101457328B (en) | High chromium, high manganese and high nitrogen biphase stainless steel and preparation method thereof | |
| CN101397637B (en) | 13Cr high anti-carbon dioxide and trace hydrogen sulfide corrosion tubing and casing steel and method for producing the same | |
| WO2009014000A1 (en) | Process for production of high alloy steel tubes | |
| CN101649424A (en) | Novel heat resistant steel | |
| CN102586700A (en) | High alloy tube piercing plug material and manufacturing method and surface processing method thereof | |
| CN104099529B (en) | A kind of steel pipe perforating heading and preparation method thereof | |
| CN103966525A (en) | High-chromium and high-molybdenum ferrite stainless steel seamless pipe and manufacturing method thereof | |
| CN101871081B (en) | Steel for low-steel-grade continuous oil pipe and manufacturing method thereof | |
| CN104988388B (en) | Economical L485Q seamless pipeline pipe and preparation method thereof | |
| CN102560260A (en) | Low cost, high strength and toughness X 70 pipeline steel coil plate and its production method | |
| CN104372246A (en) | 400 MPa-level tungstenic corrosion-resistant twisted steel and preparation method thereof | |
| CN102418051A (en) | Low-nickel diphase stainless steel |
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 |
Open date: 20081119 |