CN1667154A - Ultra-strong refractory steel - Google Patents
Ultra-strong refractory steel Download PDFInfo
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- CN1667154A CN1667154A CN 200510011584 CN200510011584A CN1667154A CN 1667154 A CN1667154 A CN 1667154A CN 200510011584 CN200510011584 CN 200510011584 CN 200510011584 A CN200510011584 A CN 200510011584A CN 1667154 A CN1667154 A CN 1667154A
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Abstract
The invention supplies a supper refractory steel. The feature is the ingredients and proportion: C is 0.2-0.45%, Cr is 22-28%, Ni is 3.5-13%, Si is 0.1-0.4, N is 0.1-0.4, RE is 0.03-3%, Mo is 0.15-2.3%, W is 0.15-2.3%, Co is 0-13%, Mn is 1-13%, Mg is 0.0005-0.10%, and the other ingredients is Fe and impurity.
Description
Technical field
The present invention relates to the austenitic heat-resistance steel in the steel alloy, particularly a kind of ultra-strong refractory steel is applicable to the various heat-resistant components that are produced under the hot operation condition.
Background technology
Austenitic heat-resistance steel of the prior art usually with chromium nickel as main alloy element, particularly derive from external heat-resisting alloy steel kind in early days, therefore nickel content height, and nickel belongs to the scarce resource of China, costs an arm and a leg is unfavorable for the steel development of China.For example, the common cast steel model of the industry has ZG3Cr18Ni25Si2 steel, ZG3Cr25Ni20Si2 steel, ZG3Cr25Ni7Si2N steel, ZG3Cr19Ni14 steel and ZG4Cr25Ni13 steel or the like.In recent years, China technician has also carried out some researchs and test at the problem that reduces nickel content, particularly utilizes the high-temperature oxidation resistance aspect that the resource rare earth further improves austenitic heat-resistance steel that is rich in of China to obtain achievement preferably.Each manufacturing enterprise also falls over each other to participate in new product development, and is all the more so in the cast steel industry.The inventor is according to solution strengthening, principle such as dispersion-strengthened and grain-boundary strengthening, ultra-strong refractory steel has been carried out abundant research, improved original cast steel model, at Cr, Ni, Si, introduce new alloying element on the austenitic heat-resistance steel basis of N, for example, rare earth RE, Mo, W, Co, Mn, Mg etc., it is high temperature resistant so that the ultra-strong refractory steel product possesses, corrosion-resistant, wear-resistant, anti-oxidant, creep resistance, anti-high-sulfur, shock resistance, easily cutting, characteristics such as can weld, W wherein, Mo, Co, Mg, N, the composite alloying of RE helps improving the hot strength of steel, the rare earth element of trace, increased the adhesivity of oxide film, the antioxidant property of steel is improved.In a word, through great efforts and creative work, ultra-strong refractory steel of the present invention is accomplished.
Summary of the invention
The present invention is directed to and have defective or deficiency in the prior art, provide a kind of and possess high temperature resistant, corrosion-resistant, wear-resistant, anti-oxidant, creep resistance, anti-high-sulfur, shock resistance, easily the ultra-strong refractory steel of characteristics such as cut, can weld.
Technical conceive of the present invention is, at Cr, Ni, Si, introduce new alloying element: RE on the austenitic heat-resistance steel basis of N, Mo, W, Co, Mn, Mg etc., it is high temperature resistant so that the ultra-strong refractory steel product possesses, corrosion-resistant, wear-resistant, anti-oxidant, creep resistance, anti-high-sulfur, shock resistance, easily cutting, characteristics such as can weld, W wherein, Mo, Co, Mg, N, the composite alloying of RE helps improving the hot strength of steel, the rare earth element of trace, increased the adhesivity of oxide film, the antioxidant property of steel is improved, trace element Mg not only can strengthen crystal boundary, improve hot strength, but also can crystal grain thinning, improve the thermoplasticity of steel.
Technical scheme of the present invention is as follows:
Ultra-strong refractory steel is characterized in that composition and weight percent thereof are as follows: C is 0.2-0.45, and Cr is 22-28, Ni is 3.5-13, Si is 0.1-0.4, and N is 0.1-0.4, and RE is 0.01-3, Mo is 0.15-2.3, W is 0.15-2.3, and Co is 0-13, and Mn is 1-13, Mg is 0.0005-0.10, and surplus is Fe and impurity.Described impurity is S and P, and its weight percent is: S and P all are not higher than 0.03.
Wherein C can be preferably 0.25-0.40.
Technique effect of the present invention is as follows:
Because ultra-strong refractory steel of the present invention, at Cr, Ni, Si, introduce new alloying element: RE on the austenitic heat-resistance steel basis of N, Mo, W, Co, Mn, Mg etc., it is high temperature resistant so that the ultra-strong refractory steel product possesses, corrosion-resistant, wear-resistant, anti-oxidant, creep resistance, anti-high-sulfur, shock resistance, easily cutting, characteristics such as can weld, W wherein, Mo, Co, Mg, N, the composite alloying of RE helps improving the hot strength of steel, the rare earth element of trace, increased the adhesivity of oxide film, the antioxidant property of steel is improved, trace element Mg not only can strengthen crystal boundary, improve hot strength, but also can crystal grain thinning, improve the thermoplasticity of steel.
Because S and P all are not higher than 0.03, make detrimental impurity be under control, thereby help quality-guarantee.
Because C is preferably 0.25-0.40, this not only helps the stable of model quality, and helps guaranteeing castability.
In a word, ultra-strong refractory steel of the present invention is a kind ofly to possess high temperature resistant, corrosion-resistant, wear-resistant, anti-oxidant, creep resistance, anti-high-sulfur, shock resistance, easily the ultra-strong refractory steel of characteristics such as cut, can weld.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
Ultra-strong refractory steel of the present invention comprises composition and weight percent is as follows: C is 0.2-0.45, and Cr is 22-28, Ni is 3.5-13, Si is 0.1-0.4, and N is 0.1-0.4, and RE is 0.01-3, Mo is 0.15-2.3, W is 0.15-2.3, and Co is 0-13, and Mn is 1-13, Mg is 0.0005-0.10, and surplus is Fe and impurity.Described impurity is S and P, and its weight percent is: S and P all are not higher than 0.03.Wherein C can be preferably 0.25-0.40.Ultra-strong refractory steel of the present invention adopts sophisticated metallurgical technology in this area and conventional analytical test and detection means in making processes.
After the said products was made, the contriver had carried out tension test and hardness measurement.Relevant noun is explained as follows:
Yield strength: sample is in drawing process, and load does not increase or begins to decrease and sample still can continue the stress of elongation when (distortion).The yield strength of steel is lower, and it is littler to produce the required power of tension set, and processing more easily promptly is shaped.For hard steel, because the characteristics of its stretching figure are significantly not surrender step, the corresponding stress of taking residual strain with all reaching an agreement on and be in actual engineering at 0.2% o'clock is as the yield strength σ of supposition, so be called offset yield strength or agreement yield strength (also claiming the condition ductility limit or the ductility limit of reaching an agreement on).Use σ
0.2Expression.
Tensile strength: when sample stretches, the maximum stress that before breaking, is born.When the suffered external stress of material during greater than its tensile strength, will break, therefore, the tensile strength of steel plate materials is bigger, represents that then it more can bear big external stress and do not rupture.Use σ
bExpression.
Unit elongation: sample after breaking, the length that its gauge length part is increased and the per-cent of former gauge length.The ratio number of elongation is bigger, represents that then material can stand tension set before stress destruction performance (plasticity) better; Otherwise then plasticity is poorer.Use δ
5Expression.
Brinell hardness: during with brineling hardness, pressure head is a sintered carbide ball, and HBW represents with symbol.
The result of tension test and hardness measurement and maximum operation (service) temperature scope is as follows:
No. 1, ultra-strong refractory steel: the maximum operation (service) temperature scope is 1200-1300 ℃, σ
bBe 640MPa, σ
0.2Be 440MPa, δ
5Be 12%, HBW850.
No. 2, ultra-strong refractory steel: the maximum operation (service) temperature scope is 1050-1150 ℃, σ
bBe 540MPa, σ
0.2Be 395MPa, δ
5Be 9%, HBW650.
No. 3, ultra-strong refractory steel: the maximum operation (service) temperature scope is 950-1050 ℃, σ
bBe 485MPa, σ
0.2Be 335MPa, δ
5Be 8%, HBW550.
No. 4, ultra-strong refractory steel: the maximum operation (service) temperature scope is 850-950 ℃, σ
bBe 580MPa, σ
0.2Be 285MPa, δ
5Be 8%, HBW450.
Above-mentioned ultra-strong refractory steel 1-4 number purposes: be mainly used in cement producing line kiln kilneye, kiln quarter badge, feed back spoon, tremie pipe, blanking slide carriage, preheater inner barrel link plate, the various senior middle schools of comb formula cooling machine low temperature grate plate single cooler, lifting bucket, air valve: accessories such as valve plate, coal powder injection pipe high temperature steel nozzle.
Above-mentioned ultra-strong refractory steel 1-4 number characteristics: have high temperature resistant, corrosion-resistant, wear-resistant, anti-oxidant, anti-high-sulfur, shock resistance, easily cutting, can weld, under hot environment, can use continuously, have good thermal fatigue resistance and resistance to elevated temperatures, use repeatedly to be difficult for producing hot row phenomenon.Compare with similar high temperature steel product, can improve 1-3 times of work-ing life.
No. 5, ultra-strong refractory steel: the maximum operation (service) temperature scope is 1100-1200 ℃, σ
bBe 440MPa, σ
0.2Be 195MPa, δ
5Be 5%, HBW700.
No. 6, ultra-strong refractory steel: the maximum operation (service) temperature scope is 1150-1300 ℃, σ
bBe 490MPa, σ
0.2Be 235MPa, δ
5Be 6%, HBW750.
Above-mentioned ultra-strong refractory steel 5-6 number purposes: be applied to industries such as thermal power plant, steel mill, thermal treatment, as thermal power plant, coal powder injection nozzles, comb andante, convey coal pipe, steel mill, guide plate, roll, fire grate, thermal treatment, charging tray, charging basket, retort, electric furnace, drop-bottom, fan blade, suspender.
Above-mentioned ultra-strong refractory steel 5-6 number characteristics: high temperature resistant, anti-oxidant, creep resistance, anti-high stream, have antifatigue and resistance to elevated temperatures preferably, under hot environment, can use continuously, or chilling, anxious heat be interrupted and use, and uses repeatedly to be difficult for producing decrepitation.
Should be pointed out that the above embodiment can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.Therefore, although this specification sheets has been described in detail to the present invention,, it will be appreciated by those skilled in the art that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of spirit of the present invention, and it all should be encompassed in the middle of the protection domain of patent of the present invention.
Claims (3)
1. ultra-strong refractory steel, it is characterized in that composition and weight percent thereof are as follows: C is 0.2-0.45, Cr is 22-28, Ni is 3.5-13, Si is 0.1-0.4, and N is 0.1-0.4, and RE is 0.01-3, Mo is 0.15-2.3, W is 0.15-2.3, and Co is 0-13, and Mn is 1-13, Mg is 0.0005-0.10, and surplus is Fe and impurity.
2. ultra-strong refractory steel according to claim 1 is characterized in that described impurity is S and P, and its weight percent is: S and P all are not higher than 0.03.
3. ultra-strong refractory steel according to claim 1 is characterized in that wherein C is 0.25-0.40.
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| CNB2005100115843A CN100406608C (en) | 2005-04-18 | 2005-04-18 | Ultra-strong refractory steel |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100115843A CN100406608C (en) | 2005-04-18 | 2005-04-18 | Ultra-strong refractory steel |
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| CN1667154A true CN1667154A (en) | 2005-09-14 |
| CN100406608C CN100406608C (en) | 2008-07-30 |
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| CNB2005100115843A Expired - Fee Related CN100406608C (en) | 2005-04-18 | 2005-04-18 | Ultra-strong refractory steel |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251196A (en) * | 2011-07-22 | 2011-11-23 | 江苏联兴成套设备制造有限公司 | Wear-resistant relieved tooth prepared from high-strength alloy steel |
| CN102888568A (en) * | 2012-09-14 | 2013-01-23 | 攀钢集团江油长城特殊钢有限公司 | Austenite nickel-saving and heat-resisting steel plate and manufacturing method thereof |
| CN103063012A (en) * | 2013-01-18 | 2013-04-24 | 南京工业大学 | High-temperature wear-resistant water beam of air-guiding wall |
| CN103063025A (en) * | 2013-01-18 | 2013-04-24 | 南京工业大学 | Large bottom plate made of forged blank for annular heating furnace and method for manufacturing large bottom plate |
| CN103075884A (en) * | 2012-12-31 | 2013-05-01 | 江苏华信达特钢科技有限公司 | Annular heating furnace large soleplate adopting rolled blank and manufacturing method thereof |
| CN103212465A (en) * | 2013-04-09 | 2013-07-24 | 莱芜钢铁集团有限公司 | Single-roll grid plate and manufacture method thereof |
| CN103526128A (en) * | 2012-07-06 | 2014-01-22 | 江苏耐尔冶电集团有限公司 | Formula of blast furnace throat steel brick |
| CN103673637A (en) * | 2013-12-12 | 2014-03-26 | 兴化市金牛机械铸造有限公司 | Cement preheater internal cylinder hanging sheet |
| CN104962808A (en) * | 2015-07-28 | 2015-10-07 | 宁国市华成金研科技有限公司 | High-temperature-resistant corrosion-resistant alloy and preparation method thereof |
| CN106282782A (en) * | 2016-10-12 | 2017-01-04 | 天津钢管集团股份有限公司 | High alloy hot-puncturing process comes directly towards |
| CN108796387A (en) * | 2018-06-15 | 2018-11-13 | 酒泉钢铁(集团)有限责任公司 | A kind of tungstenic corrosion-proof wear material and the method using the material preparation crust-breaking chips |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1003605B (en) * | 1985-04-01 | 1989-03-15 | 山东省莘县电炉配件厂 | Manganese-nitrogen high temp. resistant steel |
| CN1045814A (en) * | 1990-05-10 | 1990-10-03 | 冶金工业部钢铁研究总院 | Low nickel heat-resisting steel |
| CN1035199C (en) * | 1990-07-07 | 1997-06-18 | 成都科技大学 | Heat-resistant cast steel for cooling machine grate of cement kiln |
| US5194221A (en) * | 1992-01-07 | 1993-03-16 | Carondelet Foundry Company | High-carbon low-nickel heat-resistant alloys |
| CN1092113A (en) * | 1993-03-13 | 1994-09-14 | 西安工业学院 | The complex phase iron-aluminium intermetalics corrosion and heat resistant alloy |
| JPH06322488A (en) * | 1993-05-13 | 1994-11-22 | Nippon Steel Corp | High-strength austenitic heat resistant steel excellent in weldability and satisfactory in high temperature corrosion resistance |
| CN1032599C (en) * | 1994-02-02 | 1996-08-21 | 冶金工业部钢铁研究总院 | Nickel-saving heat-resisting steel |
| CN1029485C (en) * | 1994-02-07 | 1995-08-09 | 冶金工业部钢铁研究总院 | Heat resistant steel for high temp. furnace |
| JP2910659B2 (en) * | 1996-01-31 | 1999-06-23 | 三菱マテリアル株式会社 | Secondary combustion chamber base for diesel engine |
| JP3518515B2 (en) * | 2000-03-30 | 2004-04-12 | 住友金属工業株式会社 | Low / medium Cr heat resistant steel |
| CN1142310C (en) * | 2001-03-23 | 2004-03-17 | 清华大学 | Anticorrosion refractory high-Co rare-earth alloy |
-
2005
- 2005-04-18 CN CNB2005100115843A patent/CN100406608C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251196A (en) * | 2011-07-22 | 2011-11-23 | 江苏联兴成套设备制造有限公司 | Wear-resistant relieved tooth prepared from high-strength alloy steel |
| CN103526128B (en) * | 2012-07-06 | 2015-12-09 | 江苏耐尔冶电集团有限公司 | The formula of blast furnace throat steel brick |
| CN103526128A (en) * | 2012-07-06 | 2014-01-22 | 江苏耐尔冶电集团有限公司 | Formula of blast furnace throat steel brick |
| CN102888568A (en) * | 2012-09-14 | 2013-01-23 | 攀钢集团江油长城特殊钢有限公司 | Austenite nickel-saving and heat-resisting steel plate and manufacturing method thereof |
| CN103075884A (en) * | 2012-12-31 | 2013-05-01 | 江苏华信达特钢科技有限公司 | Annular heating furnace large soleplate adopting rolled blank and manufacturing method thereof |
| CN103063012A (en) * | 2013-01-18 | 2013-04-24 | 南京工业大学 | High-temperature wear-resistant water beam of air-guiding wall |
| CN103063025A (en) * | 2013-01-18 | 2013-04-24 | 南京工业大学 | Large bottom plate made of forged blank for annular heating furnace and method for manufacturing large bottom plate |
| CN103063025B (en) * | 2013-01-18 | 2016-06-15 | 南京工业大学 | Adopt the big base plate of rotary heating furnace and the manufacture method thereof of rough forging |
| CN103212465A (en) * | 2013-04-09 | 2013-07-24 | 莱芜钢铁集团有限公司 | Single-roll grid plate and manufacture method thereof |
| CN103673637A (en) * | 2013-12-12 | 2014-03-26 | 兴化市金牛机械铸造有限公司 | Cement preheater internal cylinder hanging sheet |
| CN104962808A (en) * | 2015-07-28 | 2015-10-07 | 宁国市华成金研科技有限公司 | High-temperature-resistant corrosion-resistant alloy and preparation method thereof |
| CN106282782A (en) * | 2016-10-12 | 2017-01-04 | 天津钢管集团股份有限公司 | High alloy hot-puncturing process comes directly towards |
| CN108796387A (en) * | 2018-06-15 | 2018-11-13 | 酒泉钢铁(集团)有限责任公司 | A kind of tungstenic corrosion-proof wear material and the method using the material preparation crust-breaking chips |
| CN108796387B (en) * | 2018-06-15 | 2020-05-15 | 酒泉钢铁(集团)有限责任公司 | Tungsten-containing corrosion-resistant and wear-resistant material and method for preparing crust-breaking hammer by using same |
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| Publication number | Publication date |
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| CN100406608C (en) | 2008-07-30 |
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Assignee: Jiangsu Huaxinda Special Steel Technology Co., Ltd. Assignor: Zhang Guanghua Contract record no.: 2010320000907 Denomination of invention: Ultra-strong refractory steel Granted publication date: 20080730 License type: Exclusive License Open date: 20050914 Record date: 20100713 |
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