CN102127715A - Tin-containing ferritic stainless steel alloy material and preparation method thereof - Google Patents
Tin-containing ferritic stainless steel alloy material and preparation method thereof Download PDFInfo
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- CN102127715A CN102127715A CN 201110085367 CN201110085367A CN102127715A CN 102127715 A CN102127715 A CN 102127715A CN 201110085367 CN201110085367 CN 201110085367 CN 201110085367 A CN201110085367 A CN 201110085367A CN 102127715 A CN102127715 A CN 102127715A
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Abstract
The invention relates to tin-containing ferritic stainless steel. The steel comprises the following components in percentage by mass: less than or equal to 0.04 percent of C, less than or equal to 1.0 percent of Si, less than or equal to 1.0 percent of Mn, less than or equal to 0.02 percent of P, less than or equal to 0.02 percent of S, less than or equal to 0.04 percent of N, 14.0 to 30.0 percent of Cr, 0.05 to 1.0 percent of Sn and the balance of Fe and inevitable impurities, wherein the content of Sn changes with the content of Cr, and the maximum content of Sn is less than Cr*3.4 percent; and a Fe60Sn40 (weight percent) intermediate alloy is added in the conventional smelting process. The ferritic stainless steel has high mechanical property, bacterium resistance, corrosion resistance and processability, can be processed into products in various shapes, and is applied to the field of the common industrial machines requiring corrosion resistance, and the fields of eating utensils, kitchen utensils, home appliance products and the like requiring bacterium resistance.
Description
Technical field
The present invention relates to a kind of stanniferous ferritic stainless steel alloy material and preparation method thereof, belong to steel and alloy material technology field.
Background technology
Ferritic stainless steel generally is divided into low chromium (Cr11-15%), middle chromium (16-20%) and Gao Ge (21-30%) three classes according to chromium content, and it is a kind of nickel-saving type stainless steel because not nickeliferous or only contain minor amount of nickel.But because its room temperature and low-temperature flexibility is poor, the high and intergranular corrosion sensitivity of notch sensitivity, and these shortcomings slack-off and welding heat affected and more obvious with the increase of its sectional dimension, speed of cooling.In order to improve above-mentioned shortcoming, people are developed to ultra-low carbon nitrogen and super-purity ferrite stainless steel direction by reducing carbon and nitrogen, but ultra-low carbon nitrogen and super-purity ferrite stainless steel can produce a kind of surface imperfection-wrinkling when dependent variable is big in moulding process.In order further to reduce cost, to improve solidity to corrosion and improving processing forming, the scientific research personnel has invented series and has contained a small amount of tin and the ferritic stainless steel of excellent performance by effort.Stanniferous ferritic stainless steel of the present invention can be used as structured material, is widely used in the general industry mechanical field, makes structural part; Simultaneously also can make antibiotic functional material, be widely used in fields such as edible utensil, kitchen utensils, household appliances.
Summary of the invention
The object of the present invention is to provide a kind of anti-corrosion stanniferous ferritic stainless steel alloy material of high tough height that has.
The stanniferous ferritic stainless steel that the tough height of height of the present invention is anti-corrosion, it is characterized in that having following composition and mass percent: C≤0.04, Si≤1.0, Mn≤1.0, P≤0.02, S≤0.02, N≤0.04, Cr:14.0～30.0, Sn:0.05 ~ 1.0, surplus is Fe and unavoidable impurities, the content of tin changes with Cr content, and maximum level must be less than Cr content * 3.4%.In addition, according to performance need, by percentage to the quality, this alloy material also contains at least a among Nb, Ti, the V, and its content is 0.05 ~ 0.5% Nb, 0.05 ~ 0.5% Ti, 0.05 ~ 0.5% V; And also containing at least a among Cu, Zn, the Ag, its content is 0.5 ~ 2.5% Cu, 0.04 ~ 0.08% Ag, 0.05 ~ 0.5 Zn.
The anti-corrosion stanniferous ferritic stainless steel alloy preparation methods of the high tough height of the present invention, it is characterized in that: adopt conventional melting method, in smelting process, add Fe60Sn40(wherein Sn content be 40wt%) master alloy, after comprehensive batching is founded, casting finally makes stanniferous ferritic stainless steel alloy material.This stanniferous ferritic stainless steel has good mechanics, antibiotic, anti-corrosion and processing characteristics, can be processed into the product of different shape, is applied to the general industry mechanical field, and needs fields such as antimicrobial edible utensil, kitchen utensils, household appliances.
Compare with super-purity ferrite with traditional ferrite, not only cost is low for stanniferous ferrite of the present invention, and wrinkle resistant in the machine-shaping process, and solidity to corrosion increases significantly.
Mechanism of the present invention is as described below:
The adding of a small amount of Sn, solid solution except that playing the solution strengthening effect, form Cr with chromium on the surface in body material
2O
3And SnO
2, significantly improve the solidity to corrosion and the processing forming of this series ferritic stainless steel.
Embodiment
After now specific embodiments of the invention being described in.
Embodiment 1
In the present embodiment, adopt the composition and the mass percent of stanniferous ferritic stainless steel as follows:
Cr 17.9%
C 0.03%
Sn 0.4%
Si 0.7%
N 0.01%
Ti 0.08%
S 0.005％
P 0.015％
Mn 0.8%
The Fe surplus
Adopt the conventional smelting process of tradition, in smelting process, add Fe60Sn40(wt%) master alloy, after comprehensive batching was founded, casting finally made stanniferous ferritic stainless steel alloy material.As cast condition is through forge hot, and anneal, its room temperature tensile breaking tenacity be greater than 400MPa, and yield strength is greater than 300MPa, tension set greater than 25% and relative reduction in area greater than 50%.
Embodiment 2
In the present embodiment, adopt the composition and the mass percent of stanniferous ferritic stainless steel as follows:
Cr 24.7%
C 0.03%
Sn 0.7%
Si 0.8％
Nb 0.07%
N 0.02%
S 0.005％
P 0.015％
Mn 0.7%
The Fe surplus
Adopt the conventional smelting process of tradition, in smelting process, add Fe60Sn40(wt%) master alloy, after comprehensive batching was founded, casting finally made stanniferous ferritic stainless steel alloy material.As cast condition is through forge hot, and anneal, its room temperature tensile breaking tenacity be greater than 450MPa, and yield strength is greater than 300MPa, tension set greater than 25% and relative reduction in area greater than 50%.
Embodiment 3
In the present embodiment, adopt the composition and the mass percent of stanniferous ferritic stainless steel as follows:
Cr 17.9%
C 0.03%
Sn 0.35%
Cu 1.5%
Si 0.7%
N 0.015%
S 0.005％
P 0.015％
Mn 0.8%
The Fe surplus
Adopt the conventional smelting process of tradition, in smelting process, add Fe60Sn40(wt%) master alloy, after comprehensive batching was founded, casting finally made stanniferous ferritic stainless steel alloy material.As cast condition is through forge hot, and annealing and antimicrobial treatment, its room temperature tensile breaking tenacity be greater than 400MPa, and yield strength is greater than 300MPa, tension set greater than 25% and relative reduction in area greater than 50%, have excellent antibacterial effect simultaneously.
Embodiment 4
In the present embodiment, adopt the composition and the mass percent of stanniferous ferritic stainless steel as follows:
Cr 17.9%
C 0.03%
Sn 0.45%
Si 0.7%
N 0.015%
S 0.005％
P 0.015％
Mn 0.8%
The Fe surplus
Adopt the conventional smelting process of tradition, in smelting process, add Fe60Sn40(wt%) master alloy, after comprehensive batching was founded, casting finally made stanniferous ferritic stainless steel alloy material.As cast condition is through forge hot, and annealing and antimicrobial treatment, its room temperature tensile breaking tenacity be greater than 400MPa, and yield strength is greater than 300MPa, tension set greater than 25% and relative reduction in area greater than 50%, have excellent antibacterial effect simultaneously.
Embodiment 5
In the present embodiment, adopt the composition and the mass percent of stanniferous ferritic stainless steel as follows:
Cr 22.3%
C 0.03%
Sn 0.55%
Si 0.6％
V 0.09%
N 0.01%
S 0.003％
P 0.025％
Mn 0.9%
The Fe surplus
Adopt the conventional smelting process of tradition, in smelting process, add Fe60Sn40(wt%) master alloy, after comprehensive batching was founded, casting finally made stanniferous ferritic stainless steel alloy material.As cast condition is through forge hot, and anneal, its room temperature tensile breaking tenacity be greater than 400MPa, and yield strength is greater than 300MPa, tension set greater than 25% and relative reduction in area greater than 50%.
The mechanical property of such stanniferous ferrite stainless steel material and ultra-low carbon nitrogen and super-purity ferrite stainless steel are suitable, but etch resistant properties and machine-shaping obviously are better than ultra-low carbon nitrogen and super-purity ferrite stainless steel, can be applicable to rigorous environment more.
Claims (4)
1. stanniferous ferritic stainless steel alloy material, it is characterized in that this stainless steel has following composition and mass percent (%): C≤0.04, Si≤1.0, Mn≤1.0, P≤0.02, S≤0.02, N≤0.04, Cr:14.0 ~ 30.0, Sn:0.05 ~ 1.0, surplus is Fe and unavoidable impurities, and tin content is less than Cr content * 3.4%.
2. stanniferous ferritic stainless steel alloy material according to claim 1, it is characterized in that this alloy material by percentage to the quality, also contain at least a among Nb, Ti, the V, its percentage composition (%) is 0.05 ~ 0.5 Nb, 0.05 ~ 0.5 Ti, 0.05 ~ 0.5 V.
3. stanniferous ferritic stainless steel alloy material according to claim 1 and 2, it is characterized in that this alloy material by percentage to the quality, also contain at least a among Cu, Zn, the Ag, its percentage composition (%) is 0.5 ~ 2.5 Cu, 0.04 ~ 0.08 Ag, 0.05 ~ 0.5 Zn.
4. one kind is used for the described stanniferous ferritic stainless steel alloy of claim 1 preparation methods, it is characterized in that: adopt conventional melting method, add the Fe60Sn40 master alloy in smelting process.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274937A (en) * | 2011-08-18 | 2011-12-14 | 东北大学 | Method for preparing ferrite stainless steel thin tape containing inversion segregation stannum |
| JP2013209745A (en) * | 2012-03-01 | 2013-10-10 | Nippon Steel & Sumikin Stainless Steel Corp | Ferritic stainless steel sheet for face panel |
| CN103451539A (en) * | 2013-01-10 | 2013-12-18 | 上海大学 | Chromium-saving type aluminum-containing ferrite stainless steel and preparation method thereof |
| CN103510013A (en) * | 2013-09-29 | 2014-01-15 | 宝钢不锈钢有限公司 | Tin-containing ferritic stainless steel with good wrinkle resistance and manufacturing method thereof |
| CN103866194A (en) * | 2014-03-21 | 2014-06-18 | 东北大学 | Abnormally segregated stanniferous low-clearance ferritic stainless steel and preparation method thereof |
| CN106282784A (en) * | 2016-10-25 | 2017-01-04 | 上海大学 | Superelevation aluminum Flouride-resistani acid phesphatase heatproof ferrite stainless steel alloy material with low neutron-absorbing and preparation method thereof |
| CN106435352A (en) * | 2016-06-30 | 2017-02-22 | 宝钢不锈钢有限公司 | Sn-containing ferrite stainless steel with low cost and high corrosion resistance, and manufacturing method thereof |
| CN107326290A (en) * | 2017-05-27 | 2017-11-07 | 苏州铭晟通物资有限公司 | A kind of corrosion-resistant tin iron material |
| CN108179360A (en) * | 2018-01-30 | 2018-06-19 | 东北大学 | A kind of super-purity ferrite stainless steel of tin copper synergistic effect and preparation method thereof |
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| JPH1192872A (en) * | 1997-09-12 | 1999-04-06 | Nippon Steel Corp | Ferritic stainless steel excellent in surface characteristic, and its production |
| JP2000169943A (en) * | 1998-12-04 | 2000-06-20 | Nippon Steel Corp | Ferritic stainless steel excellent in high temperature strength and its production |
| JP2005146345A (en) * | 2003-11-14 | 2005-06-09 | Nippon Steel & Sumikin Stainless Steel Corp | Ferritic stainless steel superior in oxidation resistance |
| JP2010116619A (en) * | 2008-11-14 | 2010-05-27 | Nippon Steel & Sumikin Stainless Steel Corp | Mo SAVING TYPE FERRITIC STAINLESS STEEL FOR AUTOMOTIVE EXHAUST SYSTEM MEMBER HAVING EXCELLENT CORROSION RESISTANCE AFTER HEATING |
| WO2010067878A1 (en) * | 2008-12-09 | 2010-06-17 | 新日鐵住金ステンレス株式会社 | High-purity ferritic stainless steel having excellent corrosion resistance, and method for producing same |
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2011
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1192872A (en) * | 1997-09-12 | 1999-04-06 | Nippon Steel Corp | Ferritic stainless steel excellent in surface characteristic, and its production |
| JP2000169943A (en) * | 1998-12-04 | 2000-06-20 | Nippon Steel Corp | Ferritic stainless steel excellent in high temperature strength and its production |
| JP2005146345A (en) * | 2003-11-14 | 2005-06-09 | Nippon Steel & Sumikin Stainless Steel Corp | Ferritic stainless steel superior in oxidation resistance |
| JP2010116619A (en) * | 2008-11-14 | 2010-05-27 | Nippon Steel & Sumikin Stainless Steel Corp | Mo SAVING TYPE FERRITIC STAINLESS STEEL FOR AUTOMOTIVE EXHAUST SYSTEM MEMBER HAVING EXCELLENT CORROSION RESISTANCE AFTER HEATING |
| WO2010067878A1 (en) * | 2008-12-09 | 2010-06-17 | 新日鐵住金ステンレス株式会社 | High-purity ferritic stainless steel having excellent corrosion resistance, and method for producing same |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274937A (en) * | 2011-08-18 | 2011-12-14 | 东北大学 | Method for preparing ferrite stainless steel thin tape containing inversion segregation stannum |
| JP2013209745A (en) * | 2012-03-01 | 2013-10-10 | Nippon Steel & Sumikin Stainless Steel Corp | Ferritic stainless steel sheet for face panel |
| CN103451539A (en) * | 2013-01-10 | 2013-12-18 | 上海大学 | Chromium-saving type aluminum-containing ferrite stainless steel and preparation method thereof |
| CN103510013A (en) * | 2013-09-29 | 2014-01-15 | 宝钢不锈钢有限公司 | Tin-containing ferritic stainless steel with good wrinkle resistance and manufacturing method thereof |
| CN103866194A (en) * | 2014-03-21 | 2014-06-18 | 东北大学 | Abnormally segregated stanniferous low-clearance ferritic stainless steel and preparation method thereof |
| CN103866194B (en) * | 2014-03-21 | 2015-11-04 | 东北大学 | Stanniferous low gap ferritic stainless steel of a kind of unusual segregation and preparation method thereof |
| CN106435352A (en) * | 2016-06-30 | 2017-02-22 | 宝钢不锈钢有限公司 | Sn-containing ferrite stainless steel with low cost and high corrosion resistance, and manufacturing method thereof |
| CN106282784A (en) * | 2016-10-25 | 2017-01-04 | 上海大学 | Superelevation aluminum Flouride-resistani acid phesphatase heatproof ferrite stainless steel alloy material with low neutron-absorbing and preparation method thereof |
| CN106282784B (en) * | 2016-10-25 | 2019-04-02 | 上海大学 | Superelevation aluminium Flouride-resistani acid phesphatase heatproof ferrite stainless steel alloy material with low neutron-absorbing and preparation method thereof |
| CN107326290A (en) * | 2017-05-27 | 2017-11-07 | 苏州铭晟通物资有限公司 | A kind of corrosion-resistant tin iron material |
| CN108179360A (en) * | 2018-01-30 | 2018-06-19 | 东北大学 | A kind of super-purity ferrite stainless steel of tin copper synergistic effect and preparation method thereof |
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Application publication date: 20110720 |