CN1094453A - Wear and corrosion-resistant non-magnetic steel - Google Patents
Wear and corrosion-resistant non-magnetic steel Download PDFInfo
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- CN1094453A CN1094453A CN 93111094 CN93111094A CN1094453A CN 1094453 A CN1094453 A CN 1094453A CN 93111094 CN93111094 CN 93111094 CN 93111094 A CN93111094 A CN 93111094A CN 1094453 A CN1094453 A CN 1094453A
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- Manufacture And Refinement Of Metals (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
A kind of wear and corrosion-resistant non-magnetic steel is applicable to that ball grinding machine lining board and other require wear-and corrosion-resistant and non-magnetic occasion.This steel adds P in the steel as a kind of key element, adds a certain amount of Mn simultaneously, Cr and Al etc.It can be smelted on converter, electric furnace and open hearth, and adopts cast shaping process, after heat treatment can realize single austenite metallographic structure, and magnetic permeability mu is only about 1.0020Gs/Oe.This steel being used on the ball mill liner, can making its life-span reach 5～7 years, is 5～7 times of commonly used heavy rail bar steel liner plate work-ing life.
Description
The present invention relates to a kind of wear and corrosion-resistant non-magnetic steel, belong to the metallic substance technical field.Be applicable to that ball mill and other require wear resistant corrosion resistant and non-magnetic occasion.
Before the present invention makes, impact, wearing and tearing, corrosion and not the magnetic conduction occasion still do not have ripe steel grade with steel.Steel for ball mill lining Working environment and performance requriements are very harsh, use the heavy rail steel bar to substitute because of can not find suitable material over a long time, extremely lack work-ing life (generally at 7～16 months).The clear 58-197256 of Japanese Patent proposes a kind of atmospheric corrosion resistance and the good high Mn steel of high tenacity of resistance to rust, and its one-tenth is grouped into and is, C:0.10～1.00%; Mn:16～35%; Si:0.20～3.00%; Cr:0.50～18.00%; Al:0.01～7.00%; Cu:0.01～2.00%; N :≤0.3%.This steel carries out strictness control to P as impurity, so its obdurability solidity to corrosion can not show fully that still range of application also is restricted.
Purpose of the present invention proposes a kind of wear and corrosion-resistant non-magnetic steel exactly, to solve in impact, wearing and tearing, corrosion and to need the not steel problem of magnetic conduction occasion.
Wear and corrosion-resistant non-magnetic steel of the present invention, its composition weight percent composition is C:0.35～1.50%; Mn:13～35%; Cr:5～11%; Al:0.5～9%; P:0.1～1.5%; Si:0.1～2%, all the other are Fe and unavoidable impurities.C wherein is the effective element that improves steel intensity and wear resistance, and can enlarge γ-phase region and improve hardening capacity.Mn is the effective element of formation and stable austenite, and it also can improve the obdurability of steel simultaneously.Cr can make steel produce passivation phenomenon, obviously improves the resistance of oxidation of steel, strengthens corrosion stability, also is the effective element that improves physical strength and wear resistance.Al can reduce the coercive force of steel, and a certain amount of Al also can make steel produce passivation phenomenon, improves the corrosion stability of steel in oxidizing acid, to increase the anti-corrosion capability of steel.P is the key element in the steel grade of the present invention, and it can not only improve the corrosion stability of steel effectively, and can strengthen molten steel flow, is suitable for molten steel agglomeration moulding.Si can improve the acid corrosion-resistant performance of steel and improve the competency of steel.
Wear and corrosion-resistant non-magnetic steel of the present invention can be smelted in converter, electric furnace and open hearth, and adopts the casting moulding, teeming temperature t 〉=1580 ℃, need after the moulding to heat-treat in 1050～1150 ℃ of temperature, the steel perlite after the processing disappears, and becomes not magnetic conduction tissue of single austenite.
Erosion resistant nonmagnetic steel embodiment composition weight percent composition of the present invention is C:0.62%; Mn:18.79%; Cr:4.67%; Al:0.89%; P:0.69%; Si:0.24%, casting and after heat treatment, its metallographic of microscopic examination becomes single austenite structure, magnetic permeability mu=1.0020Gs/Oe.This casting sheet material is used on China's certain mine ball mill liner of the north, in weak acidic medium, overwhelm and collide and friction, check that after the use in 2.5 years the amount of deteriorating is extremely slight, estimation can be used more than 5～7 years, was 5～7 times of heavy rail bar steel (former ball mill liner with heavy rail bar steel) work-ing life.
Claims (1)
1, a kind of wear and corrosion-resistant non-magnetic steel mainly is made up of iron and various alloy material, it is characterized in that its composition weight percent composition is: C:0.35～1.50%; Mn:13～35%; Cr:5～11%; Al:0.5～9%; P:0.1～1.5%; Si:0.1～2%, all the other are Fe and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111094 CN1032658C (en) | 1993-04-29 | 1993-04-29 | Wear and corrosion-resistant non-magnetic steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111094 CN1032658C (en) | 1993-04-29 | 1993-04-29 | Wear and corrosion-resistant non-magnetic steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1094453A true CN1094453A (en) | 1994-11-02 |
| CN1032658C CN1032658C (en) | 1996-08-28 |
Family
ID=4988900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93111094 Expired - Fee Related CN1032658C (en) | 1993-04-29 | 1993-04-29 | Wear and corrosion-resistant non-magnetic steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032658C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114246A (en) * | 2011-11-16 | 2013-05-22 | 范黔伟 | High manganese and high chromium alloy cast steel ZGMn13Cr10 and its production method |
| CN105026594A (en) * | 2013-02-28 | 2015-11-04 | 日新制钢株式会社 | Austenitic stainless-steel sheet and process for producing high-elastic-limit nonmagnetic steel material therefrom |
| CN108118259A (en) * | 2017-10-31 | 2018-06-05 | 宁波百瑞天然气高压压缩机有限公司 | A kind of Wear-resisting plunger and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392111C (en) * | 2003-10-27 | 2008-06-04 | 宝山钢铁股份有限公司 | Method for manufacturing tool die steel plate produced by converter |
-
1993
- 1993-04-29 CN CN 93111094 patent/CN1032658C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114246A (en) * | 2011-11-16 | 2013-05-22 | 范黔伟 | High manganese and high chromium alloy cast steel ZGMn13Cr10 and its production method |
| CN105026594A (en) * | 2013-02-28 | 2015-11-04 | 日新制钢株式会社 | Austenitic stainless-steel sheet and process for producing high-elastic-limit nonmagnetic steel material therefrom |
| CN108118259A (en) * | 2017-10-31 | 2018-06-05 | 宁波百瑞天然气高压压缩机有限公司 | A kind of Wear-resisting plunger and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1032658C (en) | 1996-08-28 |
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