CN101003882A - Two-phase stainless steel - Google Patents
Two-phase stainless steel Download PDFInfo
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- CN101003882A CN101003882A CN 200610022589 CN200610022589A CN101003882A CN 101003882 A CN101003882 A CN 101003882A CN 200610022589 CN200610022589 CN 200610022589 CN 200610022589 A CN200610022589 A CN 200610022589A CN 101003882 A CN101003882 A CN 101003882A
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Abstract
This invention discloses corrosion-resistant binary phase stainless steel, which comprises: C 0-0.03 wt.%, Cr 20-25 wt.%, Ni 3.5-7.5 wt.%, Mo 1.5-4.5 wt.%, Mn 0-2 wt.%, Si 0-1 wt.%, N 0.08-0.2 wt.%, P 0-0.03 wt.%, and S 0-0.028 wt.%. The stainless steel has such advantages as high strength, good corrosion resistance, stable quality, no deformation and high processability, and can be used to manufacture rotary drums of centrifuges.
Description
Technical field
The present invention relates to a kind of stainless steel, especially relate to a kind of high-strength stainless steel.
Background technology
At present, stainless steel has a variety of, but still exists intensity not reach design requirement.Such as, to make stainless steel that centrifuge drum adopts and have 321,316,316L is several, these steel capital exist intensity low, the defective that deflection is big, just because the restriction of this material, it is bigger that the diameter of rotary drum can not be done, otherwise will be out of shape severity, can't works better.
Summary of the invention
Based on above-mentioned need of practice, the technical problem that the present invention solves is: the high chromium of a kind of low-carbon (LC) is provided and corrosion-resistant, the high strength of an amount of nickel, molybdenum, nitrogen are arranged, stable material quality is indeformable and the novel duplex stainless steel of excellent machinability arranged.
Technical scheme of the present invention is: a kind of duplex stainless steel, contain 0～0.03% (weight) carbon, 20～25% (weight) chromium,～7.5% 3.5 (weight) nickel, 1.5～4.5% (weight) molybdenum, 0～2% (weight) manganese, 0～1% (weight) silicon,～0.2% 0.08 (weight) nitrogen, 0～0.03% (weight) phosphorus, 0～0.028% (weight) sulphur.
Wherein, the characteristics of steel of the present invention are chromium content height, help improving the intensity of steel; Carbon mainly is the machinability that improves steel; Molybdenum is the rotproofness that improves steel.
Technique effect of the present invention is: good corrosion resistance, and the intensity height, stable material quality is indeformable and excellent machinability arranged; Especially be suitable for making the rotary drum of super-magnum centrifuge.
The present invention is further described below in conjunction with embodiment.
Embodiment
Embodiment 1:
A kind of duplex stainless steel, containing chromium is 20% (weight), and nickel is 3.5% (weight), and molybdenum is 1.5% (weight), and nitrogen is 0.08% (weight).
Embodiment 2:
A kind of duplex stainless steel, contain: carbon is 0.03% (weight), and chromium is 25% (weight), and nickel is 7.5% (weight), molybdenum is 4.5% (weight), and manganese is 2% (weight), and silicon is 1% (weight), nitrogen is 0.2% (weight), and phosphorus is 0.03% (weight), and sulphur is 0.028% (weight).
Embodiment 3:
A kind of duplex stainless steel, the component and the weight percent thereof that contain are as follows: carbon is 0.02%, and chromium is 21%, and nickel is 4.5%, and molybdenum is 2.5%, and manganese is 1%, and silicon is 0.5, and % nitrogen is 0.1%, and phosphorus is 0.02%, and sulphur is 0.02%.
Embodiment 4:
A kind of duplex stainless steel, contain: carbon is 0.02% (weight), and chromium is 23% (weight), and nickel is 6.5% (weight), molybdenum is 3.5% (weight), and manganese is 0.5% (weight), and silicon is 0.8% (weight), nitrogen is 0.05% (weight), and phosphorus is 0.01% (weight), and sulphur is 0.01% (weight).
Embodiment 5:
A kind of duplex stainless steel, contain: carbon is 0.01% (weight), and chromium is 22% (weight), and nickel is 5% (weight), molybdenum is 3% (weight), and manganese is 1% (weight), and silicon is 0.8% (weight), nitrogen is 0.05% (weight), and phosphorus is 0.015% (weight), and sulphur is 0.015% (weight).
Claims (1)
1, a kind of duplex stainless steel, it is characterized in that, contain 0～0.03% (weight) carbon, 20～25% (weight) chromium, 3.5～7.5% (weight) nickel,～4.5% 1.5 (weight) molybdenum, 0～2% (weight) manganese, 0～1% (weight) silicon, 0.08～0.2% (weight) nitrogen, 0～0.03% (weight) phosphorus, 0～0.028% (weight) sulphur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610022589 CN101003882A (en) | 2006-12-22 | 2006-12-22 | Two-phase stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610022589 CN101003882A (en) | 2006-12-22 | 2006-12-22 | Two-phase stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101003882A true CN101003882A (en) | 2007-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610022589 Pending CN101003882A (en) | 2006-12-22 | 2006-12-22 | Two-phase stainless steel |
Country Status (1)
| Country | Link |
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| CN (1) | CN101003882A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215677B (en) * | 2008-01-08 | 2010-11-10 | 上海大学 | Resource-saving high-nitrogen super diphase stainless steel alloy material and preparation method thereof |
| CN102248147A (en) * | 2011-07-01 | 2011-11-23 | 屈志 | Novel stainless steel centrifuge revolving drum and manufacturing method thereof |
| CN101812647B (en) * | 2009-02-25 | 2012-10-10 | 宝山钢铁股份有限公司 | Diphase stainless steel and manufacturing method thereof |
| CN103173697A (en) * | 2013-03-25 | 2013-06-26 | 宜兴北海封头有限公司 | Biphase alloy steel tank container seal head and preparation technology thereof |
| CN106521355A (en) * | 2016-11-25 | 2017-03-22 | 四川六合锻造股份有限公司 | Double-phase stainless steel as well as preparation method and application thereof |
| CN108048755A (en) * | 2017-11-10 | 2018-05-18 | 洛阳双瑞特种装备有限公司 | A kind of high rigidity anticorrosive cast stainless steel for fluid conveying |
-
2006
- 2006-12-22 CN CN 200610022589 patent/CN101003882A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215677B (en) * | 2008-01-08 | 2010-11-10 | 上海大学 | Resource-saving high-nitrogen super diphase stainless steel alloy material and preparation method thereof |
| CN101812647B (en) * | 2009-02-25 | 2012-10-10 | 宝山钢铁股份有限公司 | Diphase stainless steel and manufacturing method thereof |
| CN102248147A (en) * | 2011-07-01 | 2011-11-23 | 屈志 | Novel stainless steel centrifuge revolving drum and manufacturing method thereof |
| CN102248147B (en) * | 2011-07-01 | 2013-11-13 | 屈志 | Novel stainless steel centrifuge revolving drum and manufacturing method thereof |
| CN103173697A (en) * | 2013-03-25 | 2013-06-26 | 宜兴北海封头有限公司 | Biphase alloy steel tank container seal head and preparation technology thereof |
| CN106521355A (en) * | 2016-11-25 | 2017-03-22 | 四川六合锻造股份有限公司 | Double-phase stainless steel as well as preparation method and application thereof |
| CN106521355B (en) * | 2016-11-25 | 2019-04-12 | 四川六合锻造股份有限公司 | A kind of two phase stainless steel and its preparation method and application |
| CN108048755A (en) * | 2017-11-10 | 2018-05-18 | 洛阳双瑞特种装备有限公司 | A kind of high rigidity anticorrosive cast stainless steel for fluid conveying |
| CN108048755B (en) * | 2017-11-10 | 2019-06-28 | 洛阳双瑞特种装备有限公司 | A kind of high rigidity anticorrosive cast stainless steel for fluid conveying |
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