CN101638743A - Common Ni-based high temperature alloy in petro-chemical industry - Google Patents
Common Ni-based high temperature alloy in petro-chemical industry Download PDFInfo
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- CN101638743A CN101638743A CN200810048668A CN200810048668A CN101638743A CN 101638743 A CN101638743 A CN 101638743A CN 200810048668 A CN200810048668 A CN 200810048668A CN 200810048668 A CN200810048668 A CN 200810048668A CN 101638743 A CN101638743 A CN 101638743A
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Abstract
The invention relates to a common Ni-based high temperature alloy in petro-chemical industry, which comprises the following chemical components in percentage by weight: 0.40 to 0.60 percent of C, 1.00to 2.00 percent of Si, 0.80 to 2.00 percent of Mn, less than 0.03 percent of P, less than 0.03 percent of S, 24.00 to 28.00 percent of Cr, 34.00 to 37.00 percent of Ni, 0.80 to 1.50 percent of Nb, less than or equal to 0.50 percent of Mo, 0.03 to 0.20 percent of Ti, 0.03 to 0.20 percent of Zr, and the balance of Fe and trace impurities. By adjusting alloy content, the common Ni-based high temperature alloy in petro-chemical industry has a more stable matrix structure and improved heat resistance; compared with the steel for producing prior like products, the common Ni-based high temperature alloy in petro-chemical industry has remarkably improved properties in corrosion resistance, carburizing resistance, oxidation resistance, high temperature resistance, creep resistance and the like, and is mainly applied to the high temperature device pyrolyzing furnaces, reforming furnaces, furnace tubes and pipe fittings in the petrochemical industry, continuous type annealing furnace radiating tubes and furnace rollers in the metallurgical industry, and spare parts bearing high temperature in other industries.
Description
(1) technical field:
The present invention relates to metallurgical industry, is a kind of common Ni-based high temperature alloy in petro-chemical industry.
(2) background technology:
Cracking furnace pipe in the petrochemical system high temperature service, reformer tube, pipe fitting etc.; The radiator tube in line heat treatment furnace, the galvanizing line annealing furnace moves back in various companies in the metallurgical system, various high temperature conveying rollers and high-temperature component etc.These products all will bear requirements such as high temperature, high pressure, anticorrosive, impervious carbon, use for a long time under the pyritous severe environment simultaneously.The most of materials of this series products were selected HK-40 (ZG40Cr25Ni20) or HP (ZG40Ni35Cr25) for use in the past, but this class alloy structure is thick, and crystal boundary easily is mingled with, yielding, poor heat stability, carburizing simultaneously easily, and product does not reach requirement work-ing life.
(3) summary of the invention:
The objective of the invention is to solve above-mentioned materials and in petrochemical industry, metallurgy high temperature device, use the problem that exists, a kind of high performance common Ni-based high temperature alloy in petro-chemical industry is provided.
Design of the present invention is: its Chemical Composition weight percent is: C 0.40-0.60, Si 1.00-2.00, Mn 0.80-2.00, P＜0.03, S＜0.03, Cr 24.00-28.00, Ni 34.00-37.00, Nb 0.80-1.50, Mo≤0.50, Ti 0.03-0.20, Zr0.03-0.20, surplus is Fe and trace impurity.
The present invention compared with prior art has following advantage:
1, by adjusting alloy content, it is more stable to help matrix, and heat resistance improves.
2, added microalloyings such as Nb, Ti, Zr and handled, made the metal structure grain refining, obtained stable reinforcement and equate.
3, along with the processing of microalloying, the creep rupture strength and the use temperature of nickel-base alloy also improve constantly.
4, handle by microalloying after, performances such as anticorrosive, the impervious carbon of alloy, anti-oxidant, high temperature resistance, creep resistance all are improved.
Composition of the present invention is reasonable in design, and tissue is stable, high-temperature behavior is good, can make equipment keep running well in the high temperature of regulation in the medium-term and long-term use of 900-1150 ℃ of high temperature, improves service life of equipment, has reduced cost, has saved the energy.Can be widely used in high temperature service pyrolyzer, converter, boiler tube, pipe fitting in the petrochemical system, continuous annealing furnace radiator tube, furnace roller in the metallurgical system, and bear pyritous component etc. in the other industry.
(4) embodiment:
Example 1: adopt the melting of 500kg medium-frequency induction furnace, by the design of the present invention Chemical Composition of weighing be: C 2.0kg, Si 5.0kg, Mn 4.0kg, P 0.01kg, S 0.01kg, Cr120.00kg, Ni 170.00kg, Nb 4.0kg, Mo 0.5kg, Ti 0.15kg, Zr 0.15kg, all the other are Fe and inevitable trace impurity.To prepare burden and all go into stove thawing back sampling analysis component content, and the intensification slag hitting, work such as deoxidation.Composition should carry out the composition adjustment if any deviation, and is qualified until composition, deoxidation of molten steel good, and temperature meets can be done tapping after the processing requirement and prepare.Reach ladle during tapping in the stove and can add the microalloying processing.
This alloy over-all properties sees the following form:
Use alloy of the present invention, can adopt the horizontal type centrifugal-casting method to produce high temperature parts such as boiler tube, radiator tube, conveying roller.
Example 2: adopt the melting of 500kg medium-frequency induction furnace, by the design of the present invention Chemical Composition of weighing be: C 2.50kg, S i 7.50kg, Mn 6.60kg, P 0.10kg, S 0.10kg, Cr 130.00kg, Ni 175.00kg, Nb 6.0kg, Mo 1.25kg, Ti 0.5kg, Zr0.5kg, all the other are Fe and inevitable trace impurity.To prepare burden, all going into can take a sample after stove melts is parsed into a part content, and the intensification slag hitting, work such as deoxidation.Composition should carry out the composition adjustment if any deviation, and is qualified until composition, deoxidation of molten steel good, and temperature meets can be done tapping after the processing requirement and prepare.Reach ladle during tapping in the stove and can add the microalloying processing.
Example 3: adopt the melting of 500kg medium-frequency induction furnace, by the design of the present invention Chemical Composition of weighing be: C 3.0kg, Si 10.00kg, Mn 10.00kg, P 0.13kg, S 0.13kg, Cr 140.00kg, Ni 185.00kg, Nb 7.50kg, Mo 2.5kg, Ti 1.00kg, Zr1.00kg, all the other are Fe and inevitable trace impurity.To prepare burden, all going into can take a sample after stove melts is parsed into a part content, and the intensification slag hitting, work such as deoxidation.Composition should carry out the composition adjustment if any deviation, and is qualified until composition, deoxidation of molten steel good, and temperature meets can be done tapping after the processing requirement and prepare.Reach ladle during tapping in the stove and can add the microalloying processing.
Claims (1)
1. common Ni-based high temperature alloy in petro-chemical industry, it is characterized in that: its Chemical Composition weight percent is: C 0.40-0.60, Si 1.00-2.00, Mn 0.80-2.00, P＜0.03, S＜0.03, Cr 24.00-28.00, Ni 34.00-37.00, Nb 0.80-1.50, Mo≤0.50, Ti 0.03-0.20, Zr 0.03-0.20, surplus is Fe and trace impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200810048668A CN101638743A (en) | 2008-07-31 | 2008-07-31 | Common Ni-based high temperature alloy in petro-chemical industry |
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| CN200810048668A CN101638743A (en) | 2008-07-31 | 2008-07-31 | Common Ni-based high temperature alloy in petro-chemical industry |
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| CN101638743A true CN101638743A (en) | 2010-02-03 |
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| CN200810048668A Pending CN101638743A (en) | 2008-07-31 | 2008-07-31 | Common Ni-based high temperature alloy in petro-chemical industry |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691011A (en) * | 2011-03-21 | 2012-09-26 | 王厚祥 | Processing method of Zr alloy reformer tube |
| CN103436722A (en) * | 2013-07-30 | 2013-12-11 | 青岛新力通工业有限责任公司 | Production method of novel nickel-base furnace tube |
| CN107326217A (en) * | 2017-06-27 | 2017-11-07 | 西北工业大学 | A kind of ni-fe-based alloy of high-carbon containing niobium and preparation method |
| CN114032421A (en) * | 2022-01-07 | 2022-02-11 | 北京钢研高纳科技股份有限公司 | Nickel-based superalloy for additive manufacturing, nickel-based superalloy powder material and product |
-
2008
- 2008-07-31 CN CN200810048668A patent/CN101638743A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691011A (en) * | 2011-03-21 | 2012-09-26 | 王厚祥 | Processing method of Zr alloy reformer tube |
| CN103436722A (en) * | 2013-07-30 | 2013-12-11 | 青岛新力通工业有限责任公司 | Production method of novel nickel-base furnace tube |
| CN107326217A (en) * | 2017-06-27 | 2017-11-07 | 西北工业大学 | A kind of ni-fe-based alloy of high-carbon containing niobium and preparation method |
| CN114032421A (en) * | 2022-01-07 | 2022-02-11 | 北京钢研高纳科技股份有限公司 | Nickel-based superalloy for additive manufacturing, nickel-based superalloy powder material and product |
| CN114032421B (en) * | 2022-01-07 | 2022-04-08 | 北京钢研高纳科技股份有限公司 | Nickel-based superalloy for additive manufacturing, nickel-based superalloy powder material and product |
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Open date: 20100203 |