CN104278207A - Heat-resistant steel containing rare earth elements - Google Patents
Heat-resistant steel containing rare earth elements Download PDFInfo
- Publication number
- CN104278207A CN104278207A CN201410349986.3A CN201410349986A CN104278207A CN 104278207 A CN104278207 A CN 104278207A CN 201410349986 A CN201410349986 A CN 201410349986A CN 104278207 A CN104278207 A CN 104278207A
- Authority
- CN
- China
- Prior art keywords
- rare earth
- heat
- equal
- less
- high temperature
- 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.)
- Granted
Links
Classifications
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
-
- 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
-
- 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
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention belongs to the technical field of metallurgy and particularly relates to heat-resistant steel containing rare earth elements. The heat-resistant steel comprises the following chemical components: less than or equal to 0.20wt% of C, less than or equal to 2.0wt% of Si, less than or equal to 0.20wt% of Mn, less than or equal to 0.5wt% of Mo, 8.0-20.0wt% of Cr, 8.0-12.0wt% of Ni, less than or equal to 0.5wt% of Ce, less than or equal to 0.5wt% of La, less than or equal to 0.04wt% of P, less than or equal to 0.04wt% of S and the balance of Fe. By adding an appropriate amount of rare earth metals, such as Ce or La into the steel, the enduring strength of the steel can be significantly improved and the creep rate of the heat-resistant steel can be reduced. The rare earth metals are accumulated at grain boundaries and thus impurity elements at the grain boundaries are reduced. The improvement on the heat strength of the heat-resistant steel by virtue of trace rare earth has certain universality and other elements cannot be replaced. Oxidation experiments show that when t is 1200 DEG C, the heat-resistant steel is scale free and has the flexural strength sigma w of 1200-1400MPa.
Description
Technical field
The invention belongs to metallurgical technology field, be specifically related to a kind of high temperature steel containing rare earth element.
Background technology
Rare earth is the title that left over by history gets off.Rare earth element (Rare Earth Element) finds successively from last years of a century in 18th century, and people often called soil water-fast soild oxide at that time.Rare earth is generally separated with oxidation state, very rare, thus must be called rare earth (Rare Earth is called for short RE or R).
Rare earth element is the general name of IIIB race yttrium and lanthanon in periodictable.Wherein promethium is man made element.They are very active metals, and character is very similar, usual valences+3, and its hydrated ion has color mostly, and what easily formation was stable joins compound.Rare earth metal, because fusing point is lower, can separate out on negative electrode in molten state at electrolytic process, therefore the general electrolytic process that all adopts is produced.Available chlorine compound and fluorochemical two kinds of salt systems, the former is that raw material adds electrolyzer with rare earth chloride, and latter adds in the form of the oxide.
China has abundant rare earth Mineral resources, and minerogentic condition is superior, can be rated as richly endowed by nature, and the reserves verified occupy first of the world, for developing china rare-earth industry provides solid basis.Rare earth element has been widely used in the fields such as electronics, petrochemical complex, metallurgy, machinery, the energy, light industry, environment protection, agricultural.
Under the high temperature conditions, the steel with oxidation-resistance and enough hot strengths and good resistance toheat is called high temperature steel.Be usually used in manufacturing the component at high temperature worked in boiler, steam turbine, power machine, industrial furnace and the industrial sector such as aviation, petrochemical complex, following requirement proposed to high temperature steel: creep rupture strength, creep strength and rupture ductility that (1) is enough; (2) high oxidation-resistance and corrosion resisting property; (3) enough structure stabilities; (4) good welding property; (5) good cold working and heat processing technique performance.The heat resistance that rare earth improves heat-resistant high alloy steel has certain ubiquity.Developing the application of rare earth in high temperature steel for this reason, to utilizing the richness of China to produce resource rare earth, promoting that the development of high temperature steel is all very significant.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high temperature steel containing rare earth element, overcomes the technological deficiency that existing high temperature steel exists, meets the adaptability of high temperature steel.
In order to solve the problem, technical scheme provided by the invention:
A kind of high temperature steel containing rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C≤0.20wt%, Si≤2.0wt%, Mn≤0.20t%, Mo≤0.5wt%, Cr8.0 ~ 20.0wt%, Ni8.0 ~ 12.0wt%, Ce≤0.5wt%, La≤0.5wt%, P≤0.04wt%, S≤0.04wt%, surplus is Fe.
A kind of high temperature steel containing rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C≤0.20wt%, Si≤2.0wt%, Mn≤0.20t%, Mo≤0.5wt%, Cr8.0 ~ 20.0wt%, Ni≤8.0 ~ 12.0wt%, Ce≤0.4wt%, La≤0.4wt%, P≤0.04wt%, S≤0.04wt%, surplus is Fe.
Ce≤0.3wt% in described high temperature steel.
La≤0.4wt% in described high temperature steel.
Ce≤0.01wt% in described high temperature steel, La≤0.2wt%.
Compared with prior art, its remarkable advantage is in the present invention:
(1) in steel, add appropriate rare earth metal Ce or La, the creep rupture strength of steel can be improved significantly, reduce the creep speed of Heat resisting cast steel.Rich glomerocryst circle of rare earth, and decrease the impurity element on crystal boundary.
(2) trace rare-earth improves heat-resistant high alloy steel heat resistance certain ubiquity, and is that other elements cannot replace.Oxidation experiment shows: t=1200 DEG C, non-scale, bending strength σ w=1200 ~ 1400MPa
(3) Rare earth heat-resistant steel resists and has good oxidation-resistance and obdurability and creep-resistant property, reduces the content of nickel in high temperature steel simultaneously, saved the resource of scarcity metals nickel while not reducing steel mechanics performance.
Specific embodiment party
Below in conjunction with embodiment, technical scheme of the present invention is further described in detail.
Embodiment 1
Containing a high temperature steel for rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C0.20wt%, Si2.0wt%, Mn0.20t%, Mo0.5wt%, Cr8.0wt%, Ni8.0wt%, Ce0.5wt%, La0.5wt%, P0.04wt%, S0.04wt%, surplus is Fe.
Embodiment 2
Containing a high temperature steel for rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C0.020wt%, Si1.8wt%, Mn0.020t%, Mo0.05wt%, Cr9.0wt%, Ni9.0wt%, Ce0.05wt%, La0.05wt%, P0.03wt%, S0.03wt%, surplus is Fe.
Embodiment 3
Containing a high temperature steel for rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C0.18wt%, Si1.5wt%, Mn0.010t%, Mo0.04wt%, Cr10.0wt%, Ni10.0wt%, Ce0.03wt%, La0.03wt%, P0.02wt%, S0.02wt%, surplus is Fe.
Embodiment 4
Containing a high temperature steel for rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C0.16wt%, Si1.2wt%, Mn0.011t%, Mo0.02wt%, Cr11.0wt%, Ni10.0wt%, Ce0.03wt%, La0.03wt%, P0.02wt%, S0.02wt%, surplus is Fe.
Embodiment 5
Containing a high temperature steel for rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C0.16wt%, Si1.2wt%, Mn0.011t%, Mo0.02wt%, Cr11.0wt%, Ni10.0wt%, Ce0.4wt%, La0.4wt%, P0.02wt%, S0.02wt%, surplus is Fe.
Embodiment 6
Containing a high temperature steel for rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C0.16wt%, Si1.2wt%, Mn0.011t%, Mo0.02wt%, Cr11.0wt%, Ni10.0wt%, Ce0.01wt%, La0.03wt%, P0.02wt%, S0.02wt%, surplus is Fe.
Embodiment 7
Containing a high temperature steel for rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C0.16wt%, Si1.2wt%, Mn0.011t%, Mo0.02wt%, Cr11.0wt%, Ni10.0wt%, Ce0.01wt%, La0.2wt%, P0.02wt%, S0.02wt%, surplus is Fe.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. the high temperature steel containing rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C≤0.20wt%, Si≤2.0wt%, Mn≤0.20t%, Mo≤0.5wt%, Cr8.0 ~ 20.0wt%, Ni8.0 ~ 12.0wt%, Ce≤0.5wt%, La≤0.5wt%, P≤0.04wt%, S≤0.04wt%, surplus is Fe.
2. the high temperature steel containing rare earth element, it is characterized in that the chemical composition of this high temperature steel is: C≤0.20wt%, Si≤2.0wt%, Mn≤0.20t%, Mo≤0.5wt%, Cr8.0 ~ 20.0wt%, Ni8.0 ~ 12.0wt%, Ce≤0.4wt%, La≤0.4wt%, P≤0.04wt%, S≤0.04wt%, surplus is Fe.
3. a kind of high temperature steel containing rare earth element according to claim 2, is characterized in that: the Ce≤0.3wt% in described high temperature steel.
4. a kind of high temperature steel containing rare earth element according to claim 2, is characterized in that: the La≤0.4wt% in described high temperature steel.
5. a kind of high temperature steel containing rare earth element according to claim 2, is characterized in that: the Ce≤0.01wt% in described high temperature steel, La≤0.2wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349986.3A CN104278207B (en) | 2014-07-22 | 2014-07-22 | A kind of heat resisting steel containing rare earth element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349986.3A CN104278207B (en) | 2014-07-22 | 2014-07-22 | A kind of heat resisting steel containing rare earth element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104278207A true CN104278207A (en) | 2015-01-14 |
| CN104278207B CN104278207B (en) | 2016-08-24 |
Family
ID=52253546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410349986.3A Active CN104278207B (en) | 2014-07-22 | 2014-07-22 | A kind of heat resisting steel containing rare earth element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104278207B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576580A (en) * | 2018-11-29 | 2019-04-05 | 武汉华培动力科技有限公司 | Diesel engine pressure booster with variable cross section nozzle assembly heat resisting steel and smelting process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1677086A1 (en) * | 1989-10-30 | 1991-09-15 | Производственное Объединение "Гомсельмаш" | Heat resistant steel |
| EP0613960A1 (en) * | 1993-02-03 | 1994-09-07 | Hitachi Metals, Ltd. | Heat-resistant, austenitic cast steel and exhaust equipment member made thereof |
| CN1212024A (en) * | 1996-02-26 | 1999-03-24 | 桑德维克公司 | Austenitic stainless steel and use of steel |
| CN101151394A (en) * | 2005-04-04 | 2008-03-26 | 住友金属工业株式会社 | Austenitic stainless steel |
| CN102534420A (en) * | 2012-03-30 | 2012-07-04 | 大连裕龙高速钢有限公司 | Low-nickel high performance heat-resistant steel |
| CN102994897A (en) * | 2012-08-13 | 2013-03-27 | 陈德祥 | High-resisting material frame made of low-chromium cast iron |
| CN103397266A (en) * | 2013-08-15 | 2013-11-20 | 上海卓然工程技术有限公司 | Heat-resisting steel and preparation method thereof |
| JP2014001436A (en) * | 2012-06-20 | 2014-01-09 | Nippon Steel & Sumitomo Metal | Austenitic heat-resistant steel pipe |
-
2014
- 2014-07-22 CN CN201410349986.3A patent/CN104278207B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1677086A1 (en) * | 1989-10-30 | 1991-09-15 | Производственное Объединение "Гомсельмаш" | Heat resistant steel |
| EP0613960A1 (en) * | 1993-02-03 | 1994-09-07 | Hitachi Metals, Ltd. | Heat-resistant, austenitic cast steel and exhaust equipment member made thereof |
| CN1212024A (en) * | 1996-02-26 | 1999-03-24 | 桑德维克公司 | Austenitic stainless steel and use of steel |
| CN101151394A (en) * | 2005-04-04 | 2008-03-26 | 住友金属工业株式会社 | Austenitic stainless steel |
| CN102534420A (en) * | 2012-03-30 | 2012-07-04 | 大连裕龙高速钢有限公司 | Low-nickel high performance heat-resistant steel |
| JP2014001436A (en) * | 2012-06-20 | 2014-01-09 | Nippon Steel & Sumitomo Metal | Austenitic heat-resistant steel pipe |
| CN102994897A (en) * | 2012-08-13 | 2013-03-27 | 陈德祥 | High-resisting material frame made of low-chromium cast iron |
| CN103397266A (en) * | 2013-08-15 | 2013-11-20 | 上海卓然工程技术有限公司 | Heat-resisting steel and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576580A (en) * | 2018-11-29 | 2019-04-05 | 武汉华培动力科技有限公司 | Diesel engine pressure booster with variable cross section nozzle assembly heat resisting steel and smelting process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104278207B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108315599B (en) | A kind of high cobalt nickel base superalloy and preparation method thereof | |
| CN105506390B (en) | A kind of nickel base superalloy containing zirconium and preparation method | |
| CN103898371B (en) | 700 DEG C of grade ultra supercritical coal power station nickel base superalloys and preparation thereof | |
| CN102994809B (en) | High-strength and corrosion-resistant nickel-iron-chromium-based high-temperature alloy and preparation method for same | |
| CN101935809B (en) | High performance rare-earth duplex stainless steel alloy material and preparation method thereof | |
| CN101892436B (en) | Fe-Ni-Cr-Al system electrothermal alloy and manufacturing method and application thereof | |
| CN102628127A (en) | High-strength corrosion-resisting nickel base alloy and manufacturing method thereof | |
| CN104357752B (en) | A kind of alloy material for valve casting and process technique thereof | |
| CN104878248B (en) | High temperature alloy 625H and its manufacturing process | |
| CN111118348A (en) | Preparation method of electrothermal alloy nickel-chromium wire | |
| CN105238957B (en) | A kind of high-performance high-temperature nickel-base alloy and its manufacture method | |
| CN104342603A (en) | Alloy material for improving corrosion resistance of valve and treatment process thereof | |
| JP2014043621A (en) | Austenitic heat resistant steel | |
| CN103667967A (en) | Heat-resistant steel for ultra-supercritical steam turbine rotor | |
| CN102230129A (en) | High-strength steel plate containing rare earth (RE) and heat treatment process thereof | |
| CN107904520A (en) | A kind of diphase stainless steel alloy material and its manufacture method | |
| CN102337476B (en) | Novel heat-resistant steel | |
| CN104988357A (en) | Nickel base alloy material for ultra-supercritical steam turbine | |
| CN104278207A (en) | Heat-resistant steel containing rare earth elements | |
| KR20160079997A (en) | Low nickel stainless steel | |
| CN103668002A (en) | Novel ferrite heat-resistant cast steel and production method thereof | |
| CN105970115A (en) | Economical high-performance copper-containing free-cutting austenitic stainless steel alloy material | |
| CN102634741A (en) | High-temperature heat-resistant and corrosion-resistant stainless steel and manufacturing method thereof | |
| JP6090905B2 (en) | Spheroidal graphite cast iron excellent in high temperature ductility and high temperature creep rupture life and method for producing the same | |
| CN108866434A (en) | Novel acidproof heat-proof electrothermal alloy 0Cr21Al4ZrTi and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Ming Inventor after: Li Hecheng Inventor before: Yang Ming |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160608 Address after: 242300 Anhui economic and Technological Development Zone, Ningguo, Wang Wang Park S104 Road on the eastern side of the road on the south side of Industrial Road, No. two Applicant after: ANHUI SANFANG NEW MATERIAL TECHNOLOGY CO., LTD. Address before: 242300, Anhui province Xuancheng city Ningguo River Lek office pay Bay Applicant before: Anhui Sanfang Cast Grinding Materials Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |