CN109868417A - A kind of anti-oxidant, anti-carburizer heat resisting steel - Google Patents
A kind of anti-oxidant, anti-carburizer heat resisting steel Download PDFInfo
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- CN109868417A CN109868417A CN201910313649.1A CN201910313649A CN109868417A CN 109868417 A CN109868417 A CN 109868417A CN 201910313649 A CN201910313649 A CN 201910313649A CN 109868417 A CN109868417 A CN 109868417A
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- resisting steel
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- heat resisting
- carburizer
- steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 73
- 239000010959 steel Substances 0.000 title claims abstract description 73
- 239000003963 antioxidant agent Substances 0.000 title claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 title claims abstract description 13
- 235000006708 antioxidants Nutrition 0.000 title claims abstract description 13
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 39
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 abstract description 19
- 230000003647 oxidation Effects 0.000 abstract description 10
- 238000007254 oxidation reaction Methods 0.000 abstract description 10
- 239000002994 raw material Substances 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 68
- 238000005255 carburizing Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000005303 weighing Methods 0.000 description 4
- 230000004584 weight gain Effects 0.000 description 4
- 235000019786 weight gain Nutrition 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910018648 Mn—N Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The present invention relates to a kind of anti-oxidant, anti-carburizer heat resisting steel, the mass percents of component are as follows: C 0.03~0.05%, Cr 21.0~25.0%, Mn 6.0~11.0%, Ni 8.0~10.0%, Si 0.7~1.1%, N 0.6~1.2%, Al 0.4~0.7%, preparation method: Mo 0.5~2.5%, surplus Fe first carry out just refining to raw material, then remelting refining, last moulding by casting；Just refining temperature is 1560-1630 DEG C, and the time is 1-2 hours, and refining temperature is 1550-1610 DEG C, and the time is 2-4 hours.The heat resisting steel is low in cost, melting convenience, resistance to high temperature oxidation, anti-carbon potential are excellent, long service life, can be used for the heat-resistant components such as 900~1100 DEG C of electric furnace, carburizer, heat-treatment furnace, boiler, has a extensive future.
Description
Technical field
The invention belongs to refractory metal material technical fields, are related to a kind of research and development preparation of heat-resisting steel member, especially
It is related to a kind of 900~1100 DEG C of novel oxidation-resistants used, anti-carburizer heat resisting steel.
Background technique
Heat resisting steel is the crucial composition material such as annealing furnace, carburizer furnace inner member, and demand is with current machine-building
Industry Quick Development and sharply expand.China is one of the country of nickel resources scarcity, and lateritic nickel ore mainly makes as heat resisting steel
Raw material, annual a large amount of dependence imports.Therefore the shortage of goods, supply shortage of nickel resources will directly result in fluctuating widely for nickel valence, finally
The price fluctuation for leading to heat-resistance stainless steel influences enterprise's manufacturing.
External general heat resisting steel mainly derivative heat resisting steel on the basis of 310 stainless steels (2520 steel) at present, such as
25Cr-20NiNbN (HR3C), Cr20Ni25MoNbTi, Cr22Ni15NbN heat resisting steel have compared with high-alloying degree, and performance is excellent
It is different, but nickel content is high, it is expensive；Domestic mainstream use for many years is without nickel steel Cr-Mn-N series, not nickeliferous member
Element, cost substantially reduce, and best service temperature is at 700 DEG C or so, but annealing furnace, and the Equipments for Heating Processing such as carburizer are needed 900
It DEG C is on active service, therefore the very low of the service life of workpiece
Summary of the invention
It is an object of the invention to be directed on domestic market under general heat resisting steel hot conditions, anti-oxidant, impervious carbon
Poor performance, greatly limit material application field and using service life and external heat resisting steel excessively rely on nickel element, at
This higher problem provides a kind of anti-oxidant, the anti-carburizer heat resisting steel of low cost.
To achieve the purpose of the present invention the following technical schemes are provided:
A kind of anti-oxidant, anti-carburizer heat resisting steel, the mass percent of component are as follows: C 0.03~0.05%, Cr
21.0~25.0%, Mn 6.0~11.0%, Ni 8.0~10.0%, Si 0.7~1.1%, N 0.6~1.2%, Al 0.4
~0.7%, Mo 0.5~2.5%, surplus Fe.
Further, the mass percent of the heat-resisting steel constituent are as follows: C 0.05%, Cr 23.0%, Mn 9.0%, Ni
8.0%, Si 1.0%, N 0.8%, Al 0.5%, Mo 1.0%, surplus Fe.
The preparation method of above-mentioned heat resisting steel: just refining first is carried out to raw material, then remelting refining, last moulding by casting；Just
Temperature control is refined at 1560-1630 DEG C, time control was at 1-2 hours, and at 1550-1610 DEG C, the time is controlled for refining temperature control
At 2-4 hours.
Above-mentioned anti-oxidant, impervious carbon heat-resistant steel is used to make the application of the components such as heat-treatment furnace and carburizer.
Compared with prior art, the beneficial effects of the present invention are:
The present invention provides a kind of anti-oxidant, anti-carburizer heat resisting steel, and the heat resisting steel even tissue is low in cost,
And with the corrosion resistance in excellent antioxygenic property and high temperature hostile carbon potential, especially when the heat resisting steel member quality
Amount percentage is C:0.05%；Cr:23.0%；Mn:9.0%；Ni:8.0%；Si:1.0%；N:0.8%；Al:0.5%；Mo:
1.0%, surplus Fe, 1000 DEG C of atmospheric environment circular gaps aoxidize in 40h experiment, and the average oxidation rate of the heat resisting steel is only
The 57.9% of existing trade mark high nickel steel 06Cr25Ni20 is existing trade mark low nickel heat-resisting steel 22Cr20Mn10Ni2Si2N's
29.5%；In industrial carburizer after 100 hours high-temperature services, the heat resisting steel carburizing weight gain of new design is only existing
The 66.6% of trade mark high nickel steel 06Cr25Ni20 is the 55.5% of existing trade mark low nickel heat-resisting steel 22Cr20Mn10Ni2Si2N.This
The heat resisting steel of invention can be used for making the heat-resistant components such as 900~1100 DEG C of electric furnace, carburizer, heat-treatment furnace, boiler, before
Scape is wide.
Specific embodiment
It is clearly and completely described below in conjunction with the technical solution in the embodiment of the present invention, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff every other embodiment obtained without making creative work belongs to what the present invention protected
Range.
Embodiment 1
A kind of anti-oxidant, anti-carburizer heat resisting steel, the mass percent of component are as follows: C 0.04%, Cr 22.0%,
Mn 7.0%, Ni 8.0%, Si 0.8%, N 1.0%, Al 0.6%, Mo 2.0%, surplus Fe.
The preparation method of above-mentioned heat resisting steel: weighing raw material by mass percentage, first using vaccum sensitive stove to raw material
Just refining is carried out, electroslag furnace remelting refining, last moulding by casting are then used；Just refining temperature is 1560 DEG C, and the time is 2 hours, essence
Refining temperature is 1550 DEG C, and the time is 4 hours.
Fig. 1 is the metallographic structure figure of the heat resisting steel annealed state of embodiment 1, it can be seen that the apparent austenite structure of crystal boundary,
And there is granular carbide to be distributed on matrix.
Embodiment 2
A kind of anti-oxidant, anti-carburizer heat resisting steel, the mass percent of component are as follows: C 0.05%, Cr 23.0%,
Mn 9.0%, Ni 8.0%, Si 1.0%, N 0.8%, Al 0.5%, Mo 1.0%, surplus Fe.
The preparation method of above-mentioned heat resisting steel: weighing raw material by mass percentage, first using vaccum sensitive stove to raw material
Just refining is carried out, electroslag furnace remelting refining, last moulding by casting are then used；Just refining temperature is 1600 DEG C, and the time is 1.5 hours,
Refining temperature is 1580 DEG C, and the time is 3 hours.
Fig. 2 is the metallographic structure figure of the heat resisting steel annealed state of embodiment 2, it can be seen that the apparent austenite structure of crystal boundary,
And there is granular carbide to be distributed on matrix.
Embodiment 3
A kind of anti-oxidant, anti-carburizer heat resisting steel, the mass percent of component are as follows: C 0.04%, Cr 22.0%,
Mn 10.0%, Ni 8.0%, Si 1.0%, N 0.6%, Al 0.6%, Mo 1.5%, surplus be Fe and inevitably it is miscellaneous
Matter.
The preparation method of above-mentioned heat resisting steel: weighing raw material by mass percentage, first using vaccum sensitive stove to raw material
Just refining is carried out, electroslag furnace remelting refining, last moulding by casting are then used；Just refining temperature is 1630 DEG C, and the time is 1 hour, essence
Refining temperature is 1610 DEG C, and the time is 2 hours.
Fig. 3 is the metallographic structure figure of the heat resisting steel annealed state of embodiment 3, it can be seen that the apparent austenite structure of crystal boundary,
And there is granular carbide to be distributed on matrix.
Performance test:
1. high temperature oxidation resistance is tested
The heat resisting steel of embodiment 1-3 is subjected to high temperature oxidation resistance test, and with existing trade mark low nickel heat-resisting steel
22Cr20Mn10Ni2Si2N, existing trade mark high nickel steel 06Cr25Ni20 are compared, and specific test method is according to HB 5258-
2000 " inoxidizability of steel and high temperature alloy measures test method ", carry out in SJF1600 elevator furnace, using 1000 DEG C
The experiment method of the discontinuous oxidation 40h of high temperature interval, and oxidation weighing record is carried out using weightening finish method.
Test result is shown in Fig. 4, and as seen from Figure 4, the heat resisting steel average oxidation rate of embodiment 1 is 0.097gm-2·
h-1, it is the 89% of existing trade mark high nickel steel 06Cr25Ni20, is existing trade mark low nickel heat-resisting steel 22Cr20Mn10Ni2Si2N
46.2%, the heat resisting steel average oxidation rate of embodiment 2 is 0.062gm-2·h-1, only existing trade mark high nickel steel
The 57.9% of 06Cr25Ni20, is the 29.5% of existing trade mark low nickel heat-resisting steel 22Cr20Mn10Ni2Si2N, embodiment 3 it is resistance to
Hot steel average oxidation rate is 0.078gm-2·h-1, the 72.9% of only existing trade mark high nickel steel 06Cr25Ni20, it is existing
The 37.1% of trade mark low nickel heat-resisting steel 22Cr20Mn10Ni2Si2N, this illustrates the low nickel of the more existing trade mark of newly-designed heat resisting steel
It is greatly improved with high nickel steel high temperature oxidation resistance, and effectively reduces cost, there is good income.
2. anti-carburizing energy
The heat resisting steel of embodiment 1-3, which is carried out anti-carburizing, to be tested, and with existing trade mark low nickel heat-resisting steel
22Cr20Mn10Ni2Si2N, existing trade mark high nickel steel 06Cr25Ni20 are compared, and experiment uses factory UBE mult-purpose chamber furnace,
Be put into furnace and tested from channel by way of pendant, under 930 DEG C, 0.7 carbon potential to sample carry out furnace in 10h, 20h,
The interruption carburizing of 5 times of 30h, 50h, 100h are tested.
Test result is shown in Fig. 5, as seen from Figure 5,930 DEG C, under 0.7 carbon potential the heat resisting steel of embodiment 1 carburizing weight gain
For 0.429mgcm-2, the 80.3% of only existing trade mark high nickel steel 06Cr25Ni20, it is existing trade mark low nickel heat-resisting steel
The carburizing weight gain of the 66.7% of 22Cr20Mn10Ni2Si2N, the heat resisting steel of embodiment 2 is 0.357mgcm-2, only existing board
The 66.6% of number high nickel steel 06Cr25Ni20, is the 55.5% of existing trade mark low nickel heat-resisting steel 22Cr20Mn10Ni2Si2N, is implemented
The carburizing weight gain of the heat resisting steel of example 3 is 0.393mgcm-2, the 74.3% of only existing trade mark high nickel steel 06Cr25Ni20, it is existing
There is the 61.9% of trade mark low nickel heat-resisting steel 22Cr20Mn10Ni2Si2N.This is illustrated under the anti-complicated carbon potential of newly-designed heat resisting steel
The more existing trade mark of performance low nickel steel and high nickel steel be significantly improved, and low in cost, have broad application prospects.
Claims (2)
1. a kind of anti-oxidant, anti-carburizer heat resisting steel, which is characterized in that the mass percent of the heat-resisting steel constituent are as follows: C
0.03~0.05%, Cr 21.0~25.0%, Mn 6.0~11.0%, Ni 8.0~10.0%, Si 0.7~1.1%, N
0.6~1.2%, Al 0.4~0.7%, Mo 0.5~2.5%, surplus Fe.
2. anti-oxidant, anti-carburizer heat resisting steel as described in claim 1, which is characterized in that the quality of the heat-resisting steel constituent
Percentage are as follows: C 0.05%, Cr 23.0%, Mn 9.0%, Ni 8.0%, Si 1.0%, N 0.8%, Al 0.5%, Mo
1.0%, surplus Fe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910313649.1A CN109868417A (en) | 2019-04-18 | 2019-04-18 | A kind of anti-oxidant, anti-carburizer heat resisting steel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910313649.1A CN109868417A (en) | 2019-04-18 | 2019-04-18 | A kind of anti-oxidant, anti-carburizer heat resisting steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110257690A (en) * | 2019-06-25 | 2019-09-20 | 宁波宝新不锈钢有限公司 | A kind of resource-conserving austenitic heat-resistance steel and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0121845B2 (en) * | 1983-05-09 | 1989-04-24 | Nippon Yakin Kogyo Co Ltd |
-
2019
- 2019-04-18 CN CN201910313649.1A patent/CN109868417A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0121845B2 (en) * | 1983-05-09 | 1989-04-24 | Nippon Yakin Kogyo Co Ltd |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110257690A (en) * | 2019-06-25 | 2019-09-20 | 宁波宝新不锈钢有限公司 | A kind of resource-conserving austenitic heat-resistance steel and preparation method thereof |
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Application publication date: 20190611 |