CN1088627A - Multi-purpose high aluminium stainless steel - Google Patents
Multi-purpose high aluminium stainless steel Download PDFInfo
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- CN1088627A CN1088627A CN 92115266 CN92115266A CN1088627A CN 1088627 A CN1088627 A CN 1088627A CN 92115266 CN92115266 CN 92115266 CN 92115266 A CN92115266 A CN 92115266A CN 1088627 A CN1088627 A CN 1088627A
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Abstract
The present invention relates to a kind of production method of producing iron-aluminum base alloy.It suitably contains elements such as Al, C, Si, Mn, P, S, Mo, Cu, B, Cr, ∑ Re, can make the steel passivation and stainless, is nonmagnetic when high aluminum content.Can match in excellence or beauty with typical nickel chromium stainless steel 1Cr18Ni9Ti.In composition range of the present invention, each constituent content is suitably adjusted, can be produced multi-purpose stainless steel, as high temperature oxidation resisting and sulphur corrosion, atmospheric corrosion resistance, seawater corrosion resistance and high aluminium stainless steel such as nonmagnetic.And have advantages such as cost is low, in light weight.
Description
The present invention relates to a kind of method of producing iron-aluminum base alloy.
The current standardized stainless steel capital contains very high chromium, and as using 1Cr18Ni9Ti stainless steel more widely, Cr content is 18%, in addition in the stainless steel that has Cr content up to 35%.In addition, nonmagnetic because chromium is the element that impels the steel ferriteization in order to make the steel austenitizing, often to add a large amount of nickel, and chromium and nickel scarcity of resources and costing an arm and a leg not only in China and a lot of countries.For many years, people explore the alloying element that can replace chromium, nickel effectively always, and aluminium is one of them.Japan's disclosed " seawater corrosion resistance nonmagnetic steel " (AU-B-81654/87) patent is an example, though this patent has adopted with the technology of aluminium for chromium, making aluminium content is 20～29%, reach seawater corrosion resistance and non-magnetic requirement, but still reckon without fragility between the high alumina crystalline grain of steel and cause the problem of steel bad mechanical property, and this patent requires in steel si content less than 0.25%, not only limited smelting condition, can not bring into play Si to the corrosion resistance nature of raising high aluminium stainless steel and the effect of intensity, do not consider molybdenum to the corrosion resistant good action of steel yet, and make chromium content (for 5.5-15%) still higher.
Task of the present invention is to utilize under Chinese rich in natural resources and the existing smelting condition, a kind of production high temperature oxidation resisting and sulphur corrosion, atmospheric corrosion resistance, seawater corrosion resistance are provided, when certain aluminum content, are nonmagnetic, and cost is low, in light weight, can substitute the high aluminium stainless steel technology of Gao Ge, nickel.
For finishing above-mentioned task, the technical solution adopted in the present invention is to be that composition is formed with Fe, Al, C, Si, Mn, Cr, No, Cu, B, ∑ Re, P, S.
Content between this composition (percentage by weight) is: C＜2%; Si:0.1～1.5%; Mn＜5%; Cr:0～8%; No:0～1.5%; Cu:0～0.3%; B:0～0.5%; ∑ Re:0～0.5%; P≤0.035%; S≤0.03%; Al:10～30%; Fe is a surplus.
Also can add Ti, V, Wb, Zr element according to different purposes the present invention, the add-on of various elements is not more than 0.3%.
So it suitably controls to the present invention P, S content in 0.035% and 0.03%, be under the present smelting condition of China, can promote widely helping under the performance condition that does not influence steel.Silicon content is 0.1～1.5% not only beneficial to intensity and the corrosion resistance nature that improves high aluminium stainless steel, and this steel is used for cast steel convenience is provided.In addition, emphasized to contain molybdenum amount and rare earth content in the steel, this not only can improve the over-all properties of steel, and has made full use of the resource that is rich in of China.The copper-containing raw material of determining not only can to utilize Chinese certain areas of copper content also can improve the atmospheric corrosion resistance of high aluminium stainless steel simultaneously.Aspect carbon content, high temperature oxidation resisting and sulphur corrosion high aluminium stainless steel have been stipulated the higher upper limit, mainly considered the application of this steel aspect hot-die steel.For reducing the detrimentally affect of manganese to high aluminium stainless steel, the present invention has limited manganese content less than 5%, and aluminium is main alloy ingredient of the present invention, and rolling off the production line of defined is 10%, makes steel have comprehensive corrosion resistance nature.When Al content 20～30% the time, can guarantee the nonmagnetic of steel.In order to strengthen the intensity of intergranule in the steel, stipulated to contain in the steel boron less than 0.5%.
In smelting process, each alloying element should add in the refining later stage, and aluminium added in the stove in the later stage of purified, also part aluminium can be added at the bottom of the ladle.
Owing to adopted technique scheme, make the present invention have cost low (at least than nickel chromium stainless steel low 30%), (lighter by 5～15%) in light weight, saved expensive wipla than nickel chromium stainless steel.Fluctuate in the contained composition scope of the present invention, the steel alloy of producing can have high temperature oxidation resisting and sulphur corrosion, atmospheric corrosion resistance, seawater corrosion resistance, non-magnetic characteristics when high aluminum content respectively.Can be widely used in the seawater corrosion resistance component of food-processing, haberdashery and hardware, architectural decoration, building materials, cutter, tableware, apparatus and equipment etc.
Embodiment 1, and composition and the content (percentage by weight) of producing high temperature oxidation resisting and sulphur corrosion high aluminium stainless steel are: C＜2%; Si:0.1～1.5%; Nn＜5%; Al:10～18%; No:＜1.5%; Cu:＜0.3%; B:＜0.5%; ∑ Re:＜0.5%; P≤0.035%; S≤0.03%; Fe is a surplus.
The high aluminium stainless steel of producing by this method can be used for making high temperature oxidation resisting and sulfurized parts, and use temperature is lower than 1000 ℃.
Composition and content (percentage by weight) that embodiment 2. produces the atmospheric corrosion resistance high aluminium stainless steel are: C≤0.95%; Si:0.25～1%; Mn＜1.5%; Al:10～20%; Cr＜5%; Mo＜1.5%; Cu＜0.3%; B＜0.5%; ∑ Re＜0.5%; P≤0.035%; S≤0.03%; Fe is a surplus.
The high aluminium stainless steel of producing by this method is mainly used in atmospheric corrosion resistance, as making furniture, ornament, architectural decoration and building materials steel, also can be used for the cutter class.
Major ingredient and content (percentage by weight) that embodiment 3. produces nonmagnetic high aluminium stainless steel are: C:0.08～0.15%; Si:0.25～1%; Mn＜1.5%; Al:20～30%; Cr:5～8%; Mo:0.5～1.5%; Cu＜0.3%; B＜0.5%; ∑ Re＜0.5%; P≤0.035%; S≤0.01%; Fe is a surplus, allows to add Ti, V, Nb, the Zr element of content (percentage by weight) less than 0.3%.
The high aluminium stainless steel of producing by this method can be used for food-processing, haberdashery and hardware, pump valve, tableware, vessel, medicine equipment and seawater corrosion resistance parts etc., also can replace the 1Cr18Ni9Ti stainless steel simultaneously and make the not magnetic conductive part in the equipment such as transformer, magnetic separator, motor, electrical equipment and make parts in the cyrogenic equipment.
Claims (5)
1, a kind of method of producing high aluminium stainless steel is characterized in that containing C, Si, Mn, Al, P, S, Cr, Mo, Cu, B and Σ Re in the described stainless steel, and surplus is by the Fe balance.
2, the method for production high aluminium stainless steel according to claim 1 is characterized in that content (percentage by weight) is: C＜2%; Si is 0.1～1.5%; Mn＜5%; Al:10～30%; Cr:0～8%; Mo:0～1.5%; Cu:0～0.3%; B:0～0.5%; ∑ Re:0～0.5%; P≤0.03%; S≤0.03%; Fe is a surplus.
3, the method for production high aluminium stainless steel according to claim 1 is characterized in that also can adding Nb, V, Ti, Zr element.
4, the method for production high aluminium stainless steel according to claim 3 is characterized in that every kind of add-on＜0.3% of described addition element.
5, according to the method for claim 2 or 4 described production high aluminium stainless steels, it is characterized in that alloying element should add in the refining later stage, Al is at the bottom of the later stage of purified adds in the stove or also part aluminium can be added ladle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115266 CN1088627A (en) | 1992-12-24 | 1992-12-24 | Multi-purpose high aluminium stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115266 CN1088627A (en) | 1992-12-24 | 1992-12-24 | Multi-purpose high aluminium stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088627A true CN1088627A (en) | 1994-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 92115266 Pending CN1088627A (en) | 1992-12-24 | 1992-12-24 | Multi-purpose high aluminium stainless steel |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997007253A1 (en) * | 1995-08-18 | 1997-02-27 | Xuesheng Zhao | AUSTENITIC ACID CORROSION-RESISTANT STAINLESS STEEL OF Al-Mn-Si-N SERIES |
| CN102747307A (en) * | 2012-06-06 | 2012-10-24 | 兰州理工大学 | High aluminum stainless steel sheet material and rolling method |
| CN103409704A (en) * | 2013-07-07 | 2013-11-27 | 兴化市特种不锈钢产业研究院 | Low-chrome high-aluminum double-phase stainless steel |
| CN104032218A (en) * | 2014-06-27 | 2014-09-10 | 张家港市佳威机械有限公司 | Metal alloy easy to passivate |
| CN107312973A (en) * | 2016-04-26 | 2017-11-03 | 天津碧宇舟机械制造有限公司 | A kind of preparation method of mortar pump shaft |
| CN109207797A (en) * | 2018-10-08 | 2019-01-15 | 江苏金源高端装备股份有限公司 | A kind of forging technology of twin (double) screw extruder pressure roller |
| CN109280810A (en) * | 2018-10-08 | 2019-01-29 | 江苏金源高端装备股份有限公司 | A kind of forging technology of compression roller of granulator |
-
1992
- 1992-12-24 CN CN 92115266 patent/CN1088627A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997007253A1 (en) * | 1995-08-18 | 1997-02-27 | Xuesheng Zhao | AUSTENITIC ACID CORROSION-RESISTANT STAINLESS STEEL OF Al-Mn-Si-N SERIES |
| CN1043253C (en) * | 1995-08-18 | 1999-05-05 | 赵学胜 | Al-Mn-Si-N series austenitic stainless acid-resisting steel |
| US5910285A (en) * | 1995-08-18 | 1999-06-08 | Zhao; Xuesheng | Austenitic acid corrosion-resistant stainless steel of Al-Mn-Si-N series |
| CN102747307A (en) * | 2012-06-06 | 2012-10-24 | 兰州理工大学 | High aluminum stainless steel sheet material and rolling method |
| CN103409704A (en) * | 2013-07-07 | 2013-11-27 | 兴化市特种不锈钢产业研究院 | Low-chrome high-aluminum double-phase stainless steel |
| CN103409704B (en) * | 2013-07-07 | 2015-12-23 | 兴化市特种不锈钢产业研究院 | A kind of joint chromium high alumina duplex stainless steel |
| CN104032218A (en) * | 2014-06-27 | 2014-09-10 | 张家港市佳威机械有限公司 | Metal alloy easy to passivate |
| CN107312973A (en) * | 2016-04-26 | 2017-11-03 | 天津碧宇舟机械制造有限公司 | A kind of preparation method of mortar pump shaft |
| CN109207797A (en) * | 2018-10-08 | 2019-01-15 | 江苏金源高端装备股份有限公司 | A kind of forging technology of twin (double) screw extruder pressure roller |
| CN109280810A (en) * | 2018-10-08 | 2019-01-29 | 江苏金源高端装备股份有限公司 | A kind of forging technology of compression roller of granulator |
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