CN100363524C - Anticorrosion and antiwear martensitic stainless steel and its production method and use - Google Patents
Anticorrosion and antiwear martensitic stainless steel and its production method and use Download PDFInfo
- Publication number
- CN100363524C CN100363524C CNB2005100244308A CN200510024430A CN100363524C CN 100363524 C CN100363524 C CN 100363524C CN B2005100244308 A CNB2005100244308 A CN B2005100244308A CN 200510024430 A CN200510024430 A CN 200510024430A CN 100363524 C CN100363524 C CN 100363524C
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- martensite stainless
- wear
- corrosion
- martensitic stainless
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to an anticorrosion and antiwear martensitic stainless steel, a production method and use. The martensitic stainless steel has the chemical components in weight: 0.45 to 0.60 of C, 16.00 to 19.00 of Cr, 2.50 to 4.00 of Ni, 2.50 to 4.00 of Mo, Si <=1.00, Mn <=2.00, P<=0.03 and S<=0.03, and the rest components are Fe. The production method of the martensitic stainless steel has the technical processes of smelting, forging, annealing, quenching, tempering, etc. The martensitic stainless steel has high mechanical property and anticorrosion property, and the hardness can reach HRC46 to 54. The martensitic stainless steel can be processed into parts which are suitable for being used in seawater and media which contain chloride to bear corrosive wear.
Description
Technical field
The present invention relates to metallic substance, relate in particular to a kind of Martensite Stainless Steel that in chloride media, has good anti-corrosion wear performance.
Background technology
Along with the development and use of marine cause and the development of petrochemical complex cause, many machinery equipment all will be moved in containing the chloride corrosion medium.These equipment components, the corrosive nature that will bear chlorion on the one hand; Also to bear between the part rubbing effect mutually on the other hand, and with medium in the abrasive action of abrasive material.The inefficacy of part has just been quickened in this friction and corrosive combined action.Make in order to prolong the working life of these component, often select for use the Martensite Stainless Steel that has than high-wearing feature (that is having higher hardness).
The general Martensite Stainless Steel of China has two types: i.e. Cr13 and Cr18 type.The Cr13 type as 2Cr13,3Cr13,4Cr13 etc.The Cr18 type 9Cr18,9Cr18MoV, 1Cr17Ni2 etc. are arranged.These steel have higher hardness, and its hardness value reaches as high as HRC64, so they all have higher wear resistance, but their corrosion resistance natures are very low, can only be applicable to atmospheric environment as Cr13 type stainless steel, just corrosion easily in the aqueous solution.Cr18 type stainless steel solidity to corrosion increases, and also can only be used for weak corrosive medium such as river, tap water, rainwater, organic acid, and can not be used for seawater and contain muriatic chemical medium.Certainly, people also can select for use PH Stainless Steel to make the component of anti-corrosion wear.China's PH Stainless Steel commonly used has 17-4PH, 17-7PH, PH15-7Mo and GH132 etc., and the stainless corrosion resistance nature of this class is higher, reaches 304 and the stainless level of 316L.But this class steel hardness is lower, generally below HRC45, and the thermal treatment process complexity, can only satisfy the requirement of a part of component in actual use.
In order to seek better anti-corrosion wear Martensite Stainless Steel, people have also carried out a series of research, for example Chinese patent publication number CN1515699A has proposed a kind of Martensite Stainless Steel, and its main component is (weight %): C:0.35～0.45, Cr:16.00～18.00, Ni:0.10～0.70, Mo:1.00～1.25, V:0.50 finds out from the example of implementing, this hardness of steel is higher, σ
bAt 840～1260N/mm
2Between, be suitable in industries such as mould, chemical fibre, using.Chinese patent publication number CN1145644A proposes to have the high hardness martensitic stainless steel of good pitting resistance; its main component is (weight %): C:0.15～0.40; Cr:11.00～15.00; Mo+1/2W:1.00～3.00; Ni:0.1～1.50; Cu:0.1～2.00; N:0.02～0.15; Si, Mn all are not more than 2.00; this steel is applicable to the open air and may contacts the dew of tap water, rainwater, condensation or similar material, also can be used for the component of mould of plastics and plastic injected die machine etc.
From the introduction of above-mentioned prior art as can be seen, also lack the Martensite Stainless Steel that in seawater and chloride medium, has good anti-corrosion wear performance at present.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of Martensite Stainless Steel and Manufacturing approach and use thereof that has good anti-corrosion wear in seawater and chloride medium for the defective that overcomes above-mentioned prior art existence, to be convenient to be manufactured on the component that bear the corrosion rubbing effect of working in these media, as axle, bearing, screw, nut and similar friction member thereof.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of Martensite Stainless Steel of anti-corrosion wear, it is characterized in that, the chemical ingredients of this Martensite Stainless Steel and weight percentage are: C:0.45～0.60, Cr:16.00～19.00, Ni:2.50～4.00, Mo:2.50～4.00, Si≤1.00, Mn≤2.00, P≤0.03, S≤0.03, all the other are Fe.
Described Martensite Stainless Steel has following mechanical property: σ
b〉=1500MPa, σ s 〉=1200MPa, δ
5〉=8%, 〉=18%, α
k〉=20J/cm
2, HRC:46～54.
A kind of manufacture method of Martensite Stainless Steel of above-mentioned anti-corrosion wear is characterized in that, this method comprises mentioned component melting in atmosphere or vacuum induction furnace, gets final product machine-shaping after forging or casting, thermal treatment; Described thermal treatment process comprises:
(1) annealing: be heated to 760～820 ℃, soaking time at least 4 hours, slow cooling is to room temperature then;
(2) quench: be heated to 980～1050 ℃, after the insulation, water or oil quenching carry out freezing or sub-zero treatment again;
(3) tempering: 280～320 ℃ are incubated 4 hours down, and air cooling is to room temperature.
A kind of purposes of Martensite Stainless Steel of above-mentioned anti-corrosion wear is characterized in that, this Martensite Stainless Steel can be processed into various forms of forge pieces, is applicable to the component that bear corrosive wear in the chloride medium.
The metallographic structure of Martensite Stainless Steel of the present invention after quenching, tempering is made up of tempered martensite+minor amount of carbide+small portion of residual austenite.Carbide content improves with quenching temperature and reduces, and residual austenite content can reduce or eliminate by quenching temperature and deepfreeze temperature.For component easy to wear, exist a certain amount of carbide to help the raising of wear resistance.
Fig. 1 is the trier synoptic diagram that carries out the corrosive wear test; Fig. 2 is a sample, sample internal diameter φ
1=25mm, external diameter φ
2=50mm, high h=10mm; The working process of effect test of the present invention is: container 1 fills a certain amount of corrosive medium that contains abrasive material, axle drives sample 4 and agitating vane 5 runs up, and has stirred solution, because the effect of spoiler 2, abrasive material evenly is suspended in the solution, produces wearing and tearing with the sample collision of rotation.Sample just is subjected to the corrosion of solution and the wearing and tearing of abrasive material simultaneously like this, promptly produces corrosive wear.By the axis hole inside conductor sample is connected with copper ring 9, forms conductive path, and draw as working electrode access potentiostat 7, insert supporting electrode 3, reference electrode 6 simultaneously, formed electrochemical property test device by carbon brush 8.
Testing liquid is mixed with the 3.5%NaCl aqueous solution by commercially pure sodium-chlor and tap water, and 6000ml solution+1000 gram quartz sands (40～70 purpose mixed sand) are got in each test.With the saturated calomel electrode is reference electrode, and high-class stainless steel is as supporting electrode.Sample garden side face is a corrosive wear face, and both ends of the surface compress sealing by tetrafluoroethylene.
Fig. 3 is steel of the present invention (code name 940) and contrast material (17-4PH, 1Cr18Ni9Ti, 9Ci18) measured anodic polarization curves on above-mentioned corrosive wear trier.The rotating speed that adopts is 2378rpm (revolutions per), on potentiostat, from corrosion potential, with 20mv (SCE)/minute speed to the stepping of positive potential direction, record this curve.By the anodic polarization curves electrochemical behavior of material in corrosion process as can be seen.Found out by figure: current potential Eb the highest (about 140mv) is broken up in steel of the present invention (940) spot corrosion, and the passivation region maximum illustrates that corrosion resistance nature is best.The spot corrosion of contrast material 17-4PH PH Stainless Steel and 1Cr18Ni9Ti steel is broken up current potential Eb and is taken second place (about 40mv), and passivation region is also all less than steel of the present invention.And that current potential Eb is broken up in the spot corrosion of 9Cr18 Martensite Stainless Steel is minimum, and pact-200mv, passivation region be minimum (almost not having passivation region), illustrates that solidity to corrosion is minimum.
Steel such as 17-4PH, 1Cr18Ni9Ti, 9Cr19 and materials similar thereof often are used to make the component of anti-corrosion wear, find out that from above-mentioned test-results steel of the present invention is their ideal replacement materials.
Description of drawings
Fig. 1 is the trier synoptic diagram that carries out the corrosive wear test;
Fig. 2 is a sample;
Fig. 3 is steel of the present invention (code name 940) and contrast material (17-4PH, 1Cr18Ni9Ti, 9Ci18) measured anodic polarization curves on above-mentioned corrosive wear trier.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
A kind of in chloride media the Martensite Stainless Steel of anti-corrosion wear, its main chemical compositions is (weight %): C:0.45, Cr:16.00, Ni:4.00, Mo:2.50, all the other are Fe.
The manufacture method of above-mentioned Martensite Stainless Steel comprises smelts, forges into bar with the material of above-mentioned chemical ingredients at the atmosphere medium-frequency induction furnace, obtain through thermal treatment again, this thermal treatment process comprises: at first this bar is carried out anneal: this bar is heated to 820 ℃, kept 4 hours; Carry out quench treatment after the roughing: this material is heated to 1050 ℃, kept 1 hour, adopt shrend, again-30 ℃ of following freezing processing 8 hours; Carry out temper at last: promptly kept 4 hours down, in air, be cooled to room temperature then, get final product precision work at 280 ℃, thereby obtain a kind of in chloride media the Martensite Stainless Steel of anti-corrosion wear.
The Martensite Stainless Steel mechanical property that adopts above-mentioned formula materials and method to obtain is as follows: σ
b: 1545Mpa, σ s:1360Mpa, δ
5: 10.5%, : 21.25%, α
k: 28J/cm
2, HRC:48.
Embodiment 2
A kind of in chloride media the Martensite Stainless Steel of anti-corrosion wear, its main chemical compositions is (weight %): C:0.53, Cr:19.00, Ni:2.50, Mo:4.00, S:0.03, P:0.01, Si:1.00, Mn:2.00, all the other are Fe.
The manufacture method of above-mentioned Martensite Stainless Steel comprises that the material with above-mentioned chemical ingredients obtains after smelting, forging, thermal treatment, described thermal treatment process comprises: at first this bar is carried out anneal: this bar is heated to 760 ℃, kept 6 hours; Carry out quench treatment after the roughing: bar is heated to 980 ℃, kept 2 hours, adopt shrend, again-30 ℃ of following freezing processing 8 hours; Carry out temper at last: bar was kept 5 hours down at 320 ℃, in air, be cooled to room temperature after, can carry out the precision work moulding, thus obtain a kind of in chloride media the Martensite Stainless Steel of anti-corrosion wear.
Be processed into certain axis of guide on utensil under water by the Martensite Stainless Steel of anti-corrosion wear in chloride media of mentioned component and technology, directly be exposed among the seawater.This one side is born sea-water corrosion, on the other hand, on this axle square thread is arranged, and nut moves back and forth in the above, the taking up wear effect.Under the combined action of corrosive wear, very easily cause inefficacy like this, used 9Cr18 in the past respectively, the 1Cr18Ni9Ti steel, have only 1～2 month its work-ing life, or because of seriously corroded lost efficacy, or come into force because of serious wear.After use steel of the present invention instead, used one-year age, also the operation.Illustrate that steel of the present invention has excellent anti-corrosion wear performance in seawater.
Embodiment 3
A kind of in chloride media the Martensite Stainless Steel of anti-corrosion wear, its main component is (weight %): C:0.60, Cr:17.48, Ni:3.45, Mo:2.90, Mn:0.84, Si:0.45, S:002, P:003.Make sample, on as the device of Fig. 1, carry out the corrosive wear test as Fig. 2.Testing liquid is the mixed solution of 3.5%NaCl aqueous solution 6000ml+1000 gram quartz sand (40～70 order), and rotating speed is 2378 rev/mins, tests after 6 hours, calculates the corrosive wear rate by weightlessness, and its result is as shown in table 1.
Table 1, steel of the present invention (code name 940) and contrast material corrosive wear rate (mm/)
| Steel grade | Hardness | The |
| 940 | 48 | 0.52 |
| 17-4PH | 33 | 2.8 |
| 1Cr18Ni9Ti | 3.35 |
Annotate: the result is three sample means
As can be seen from Table 1, the corrosive wear rate minimum of steel of the present invention, the 17-4PH steel is big slightly, the 1Cr18Ni9Ti maximum.The corrosive wear rate is little, just means the wear resistance height.Under this same corrosive wear condition, show that the wear resistance of steel of the present invention is higher more than 4 times than the 17-4 steel, higher more than 5 times than the 1Cr18Ni9Ti steel.
Claims (4)
1. the Martensite Stainless Steel of an anti-corrosion wear, it is characterized in that, the chemical ingredients of this Martensite Stainless Steel and weight percentage are: C:0.45～0.60, Cr:16.00～19.00, Ni:2.50～4.00, Mo:2.50～4.00, Si≤1.00, Mn≤2.00, P≤0.03, S≤0.03, all the other are Fe.
2. the Martensite Stainless Steel of a kind of anti-corrosion wear according to claim 1 is characterized in that, described Martensite Stainless Steel has following mechanical property: σ
b〉=1500MPa, σ s 〉=1200MPa, δ
5〉=8%, 〉=18%, α
k〉=20J/cm
2, HRC:46～54.
3. the manufacture method of the Martensite Stainless Steel of the described anti-corrosion wear of claim 1 is characterized in that, this method comprises mentioned component melting in atmosphere or vacuum induction furnace, gets final product machine-shaping after forging or casting, thermal treatment; Described thermal treatment process comprises:
(1) annealing: be heated to 760～820 ℃, soaking time at least 4 hours, slow cooling is to room temperature then;
(2) quench: be heated to 980～1050 ℃, after the insulation, water or oil quenching carry out freezing or sub-zero treatment again;
(3) tempering: 280～320 ℃ are incubated 4 hours down, and air cooling is to room temperature.
4. the purposes of the Martensite Stainless Steel of the described anti-corrosion wear of claim 1 is characterized in that, this Martensite Stainless Steel can be processed into various forms of forge pieces, is applicable to the component that bear corrosive wear in the chloride medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100244308A CN100363524C (en) | 2005-03-17 | 2005-03-17 | Anticorrosion and antiwear martensitic stainless steel and its production method and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100244308A CN100363524C (en) | 2005-03-17 | 2005-03-17 | Anticorrosion and antiwear martensitic stainless steel and its production method and use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664153A CN1664153A (en) | 2005-09-07 |
| CN100363524C true CN100363524C (en) | 2008-01-23 |
Family
ID=35035461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100244308A Expired - Fee Related CN100363524C (en) | 2005-03-17 | 2005-03-17 | Anticorrosion and antiwear martensitic stainless steel and its production method and use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100363524C (en) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5904409B2 (en) * | 2011-09-28 | 2016-04-13 | 日立金属株式会社 | Manufacturing method of steel materials for molds with excellent toughness |
| CN102586550B (en) * | 2012-02-29 | 2014-04-02 | 重庆宗学重工机械股份有限公司 | Heat treatment method for stainless steel heat-resistant steel forging |
| CN102719627B (en) * | 2012-07-04 | 2013-11-06 | 中原特钢股份有限公司 | Heat treatment method of high-chromium martensitic stainless steel |
| CN104108003A (en) * | 2013-04-19 | 2014-10-22 | 宝山钢铁股份有限公司 | Manufacturing method for super 13Cr tool joint |
| CN103480809A (en) * | 2013-07-08 | 2014-01-01 | 山西太钢不锈钢股份有限公司 | Continuous casting method for wide high-carbon martensitic stainless steel plate blank |
| JP6002114B2 (en) * | 2013-11-13 | 2016-10-05 | 日本精工株式会社 | Method of manufacturing mechanical parts and method of manufacturing rolling bearing using martensitic stainless steel |
| CN104109752B (en) * | 2014-07-19 | 2016-06-22 | 江苏法尔胜泓昇集团有限公司 | Martensitic stainless steel wire press quenching processing method |
| CN104195305A (en) * | 2014-08-18 | 2014-12-10 | 常熟市新洲机械制造厂 | Thermal treatment process of machine material contacting food material |
| CN104404381A (en) * | 2014-11-13 | 2015-03-11 | 湖北宏盛不锈钢制品有限公司 | High-strength martensite stainless steel |
| CN104561482B (en) * | 2015-01-22 | 2015-12-02 | 机械科学研究总院先进制造技术研究中心 | A kind of thermal treatment process of 3Cr13 Martensite Stainless Steel |
| CN104561479B (en) * | 2015-01-22 | 2015-12-09 | 机械科学研究总院先进制造技术研究中心 | A kind of thermal treatment process of S316 Martensite Stainless Steel |
| CN104726673B (en) * | 2015-02-25 | 2016-09-07 | 金华芒果信息技术有限公司 | A kind of computer casing and preparation method thereof |
| CN104694832B (en) * | 2015-02-28 | 2017-02-01 | 钢铁研究总院 | Martensitic stainless steel for nuclear reactor and preparation method of stainless steel |
| CN106148657B (en) * | 2015-03-24 | 2017-11-07 | 机械科学研究总院先进制造技术研究中心 | A kind of Q P handling process of S136 martensitic stain less steels |
| CN106148648B (en) * | 2015-03-24 | 2017-11-10 | 机械科学研究总院先进制造技术研究中心 | A kind of 3Cr13 martensitic stain less steels with excellent anticorrosive performance |
| CN106148647B (en) * | 2015-03-24 | 2017-11-07 | 机械科学研究总院先进制造技术研究中心 | A kind of Q P handling process of 3Cr13 martensitic stain less steels |
| CN106148646B (en) * | 2015-03-24 | 2017-11-07 | 机械科学研究总院先进制造技术研究中心 | A kind of S136 martensitic stain less steels of excellent anti-corrosion performance |
| CN105545566B (en) * | 2015-12-27 | 2017-11-14 | 金华市秸和环保技术咨询有限公司 | A kind of wastewater electric generator |
| CN106521122A (en) * | 2016-11-02 | 2017-03-22 | 华南理工大学 | Subzero treatment technology for improving wear resistance of alloy structural steel |
| CN107475637B (en) * | 2017-08-09 | 2019-07-09 | 四川科力特硬质合金股份有限公司 | A kind of conductor rail and preparation method thereof |
| CN107900267A (en) * | 2017-11-16 | 2018-04-13 | 山西太钢不锈钢股份有限公司 | A kind of middle corrosion-resistant band steel forging method of think gauge Cr13 type martensites |
| CN107723420A (en) * | 2017-11-28 | 2018-02-23 | 湖北工程职业学院 | A kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component |
| CN108118121B (en) * | 2017-11-29 | 2019-11-29 | 北京卫星制造厂 | A kind of martensitic stain less steel component and preparation method thereof |
| CN108998748A (en) * | 2018-09-05 | 2018-12-14 | 合肥久新不锈钢厨具有限公司 | A kind of excellent weak remanent magnetism low nickel stainless steel of processing characteristics |
| CN110596089B (en) * | 2019-10-09 | 2022-02-11 | 无锡通测检测技术有限公司 | Rapid nondestructive testing method for martensitic stainless steel part welding repair material |
| CN113637924A (en) * | 2020-04-27 | 2021-11-12 | 靖江市中信特种机械泵阀厂 | Novel material for mash pump |
| CN112207510A (en) * | 2020-09-14 | 2021-01-12 | 襄阳顺特阳光科技有限公司 | Method for machining stainless steel intercooling air inlet pipe |
| CN114250465B (en) * | 2021-12-15 | 2022-08-26 | 北京科技大学 | Heat treatment method for improving hardness of cutting edge of laser cladding cutter |
| CN115961217A (en) * | 2022-12-21 | 2023-04-14 | 青岛科技大学 | Heat treatment method and device for high-end cast steel pulping grinding disc |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000282182A (en) * | 1999-03-29 | 2000-10-10 | Sanyo Special Steel Co Ltd | High fatigue life and high corrosion resistance martensitic stainless steel excellent in cold workability |
| JP2001123254A (en) * | 1999-10-22 | 2001-05-08 | Sanyo Special Steel Co Ltd | Method for producing martensitic corrosion resistant steel free from production of network carbide |
| CN1087783C (en) * | 1999-07-05 | 2002-07-17 | 上海交通大学 | Heat treatment for martensitic stainless steel sheet |
| CN1108396C (en) * | 1999-08-16 | 2003-05-14 | 朴庸秀 | Martensite stainless steel for golf club head |
| CN1458983A (en) * | 2000-07-17 | 2003-11-26 | 株式会社理研 | Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing same, and combination of piston ring and cylinder block |
-
2005
- 2005-03-17 CN CNB2005100244308A patent/CN100363524C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000282182A (en) * | 1999-03-29 | 2000-10-10 | Sanyo Special Steel Co Ltd | High fatigue life and high corrosion resistance martensitic stainless steel excellent in cold workability |
| CN1087783C (en) * | 1999-07-05 | 2002-07-17 | 上海交通大学 | Heat treatment for martensitic stainless steel sheet |
| CN1108396C (en) * | 1999-08-16 | 2003-05-14 | 朴庸秀 | Martensite stainless steel for golf club head |
| JP2001123254A (en) * | 1999-10-22 | 2001-05-08 | Sanyo Special Steel Co Ltd | Method for producing martensitic corrosion resistant steel free from production of network carbide |
| CN1458983A (en) * | 2000-07-17 | 2003-11-26 | 株式会社理研 | Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing same, and combination of piston ring and cylinder block |
Non-Patent Citations (1)
| Title |
|---|
| 金属耐蚀材料. 徐增华.腐蚀与防护，第5卷第22期. 2001 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1664153A (en) | 2005-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100363524C (en) | Anticorrosion and antiwear martensitic stainless steel and its production method and use | |
| Dalmau et al. | Degradation mechanisms in martensitic stainless steels: Wear, corrosion and tribocorrosion appraisal | |
| CN106661691B (en) | Carbo-nitriding bearing steel | |
| JP4337268B2 (en) | High hardness martensitic stainless steel with excellent corrosion resistance | |
| JPH09287053A (en) | Rolling bearing and other rolling devices | |
| JP5368887B2 (en) | Martensitic stainless steel and rolling bearings | |
| CN101117688A (en) | Novel stainless bearing steel and method for manufacturing same | |
| Uygur et al. | The effects of cryogenic treatment on the corrosion of AISI D3 steel | |
| CN107002211A (en) | High hardness martensitic stainless steel with excellent antibacterial and preparation method thereof | |
| CN101589168B (en) | Lead free free-cutting steel and its use | |
| CA3118930C (en) | High-strength and corrosion-resistant sucker rod and preparation process thereof | |
| JP2014074212A (en) | Rolling and sliding member, manufacturing method thereof, and rolling bearing | |
| CN102719629A (en) | Water-soluble polyether hardening agent | |
| CN110484836B (en) | Hafnium zirconium titanium molybdenum reinforced austenitic stainless steel and preparation method thereof | |
| CN105296874A (en) | Stainless steel, preparation method and application | |
| CN101463451A (en) | Novel corrosion resistant antiwear metallic material | |
| JP2001107195A (en) | Low carbon high hardness and high corrosion resistance martensitic stainless steel and its producing method | |
| JP3768091B2 (en) | High strength and high corrosion resistance martensitic stainless steel and manufacturing method thereof | |
| JP2002509195A (en) | Martensitic stainless steel for free cutting | |
| JPH10219402A (en) | Rolling supporting device | |
| CN104004965A (en) | Steel for wind power main shaft and heat treatment method thereof | |
| JP2000282182A (en) | High fatigue life and high corrosion resistance martensitic stainless steel excellent in cold workability | |
| CN110607490B (en) | Hafnium zirconium titanium reinforced austenitic stainless steel and preparation method thereof | |
| CN103602915B (en) | High carbon and chromium duplex stainless steel | |
| CN101260500A (en) | Quench hardening type easy-cutting mirror-surface plastic die steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20200317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |