CN103820713A - High-strength and high-toughness H2S corrosion resistant oil tube and making method thereof - Google Patents

High-strength and high-toughness H2S corrosion resistant oil tube and making method thereof Download PDF

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CN103820713A
CN103820713A CN201410059791.5A CN201410059791A CN103820713A CN 103820713 A CN103820713 A CN 103820713A CN 201410059791 A CN201410059791 A CN 201410059791A CN 103820713 A CN103820713 A CN 103820713A
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tenacity
oil pipe
temperature
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steel
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CN103820713B (en
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石晓霞
刘金
王金龙
惠志国
王磊
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Baotou Iron and Steel Group Co Ltd
Inner Mongolia Baotou Steel Union Co Ltd
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Abstract

The invention discloses a high-strength and high-toughness H2S corrosion resistant oil tube. The oil tube comprises, by mass, 0.158-0.167% of C, 0.298-0.322% of Si, 0.499-0.514% of Mn, 0.98-1.12% of Cr, 0.377-0.405% of Mo, 0.018% or less of P, 0.01% or less of S, 0.051-0.054% of V, 0.011-0.017% of Ti, 0.016-0.021% of Al, and the balance Fe, and the sum of the mass fractions of the above components is 100%. The invention also discloses a making method of the high-strength and high-toughness H2S corrosion resistant oil tube. The method comprises the steps of steelmaking production, steel rolling and rolled steel heat treatment. The high-strength and high-toughness H2S corrosion resistant oil tube has a high H2S corrosion resistance.

Description

The anti-H of high-intensity high-tenacity 2s corrosion oil pipe and preparation method thereof
Technical field
The present invention relates to metal material field, specifically, relate to the anti-H of a kind of high-intensity high-tenacity 2s corrosion oil pipe and preparation method thereof.
Background technology
In domestic and international oil field, about 1/3 contains hydrogen sulfide, the many oil fields of China are as all contained hydrogen sulfide in the hydrocarbon zone in the oil fields such as Sichuan, long celebrating, North China, Xinjiang, Jiang-Han Area, wherein Sichuan oilfield is particularly serious, it is reported that Sichuan oilfield is one of the most serious oil-gas field of whole world corrosion.Also there are many hydrogen sulfide containing oil fields abroad, as the Barrow house oil field of the U.S., your oil field, gulf of Canadian truncation etc.Ordinary casing is when for hydrogen sulfide containing petroleum resources exploitation, oil pipe is under the effect of service stress and hydrogen sulfide, tend to stressed brittle failure occur suddenly during far below itself yield strength, this phenomenon is called H 2 S stress corrosion, the lighter causes string of casing or whole mouthful of well to scrap, severe one can cause blowout, makes hydrogen sulfide together excessive with oil gas, causes whole bench drill machine and the considerable damage of ecotope around.Therefore, exploit hydrogen sulfide containing hydrocarbon resources and just must use anti-H 2 S sleeve pipe.
Another hang-up of high strength sulfur resisting hydrogen-type corrosion oil pipe is exactly when how improving yield strength, to increase or do not reduce impelling strength.As everyone knows, in low-carbon and low-alloy quenched and tempered steel, yield strength and impelling strength are the contradictory relations that disappears each other and rise, and that is to say that yield strength improves, inevitable, its impelling strength will reduce.Obtain higher yield strength, just must reduce the tempering temperature in modified process, now impelling strength reduces with the reduction of tempering temperature, if want to improve the impelling strength of steel, must at higher temperature, carry out tempering, now the yield strength of material declines to a great extent.
Summary of the invention
Technical problem to be solved by this invention is to provide the anti-H of a kind of high-intensity high-tenacity 2s corrodes oil pipe, has good corrosion resistance.
Technical scheme of the present invention is as follows:
The anti-H of a kind of high-intensity high-tenacity 2s corrodes oil pipe, the quality percentage composition of its material chemical composition comprises: C0.158%～0.0.167%, Si0.298%～0.322%, Mn0.499%～0.514%, Cr0.98%～1.12%, Mo0.377%～0.405%, P≤0.018%, S≤0.01%, V0.051%～0.054%, Ti0.011%～0.017%, Al0.016%～0.021%, all the other are Fe, and massfraction amounts to 100%.
Further, the anti-H of described high-intensity high-tenacity 2the quality percentage composition of the chemical composition of S corrosion oil pipe comprises: C0.164%, Si0.317%, Mn0.514%, Cr1.12%, Mo0.398%, P0.018%, S0.010%, V0.051%, Ti0.011% and Al0.021%; Or, C0.160%, Si0.322%, Mn0.504%, Cr1.02%, Mo0.386%, P0.015%, S0.008%, V0.054%, Ti0.015% and Al0.020%; Or, C0.158%, Si0.305%, Mn0.501%, Cr0.98%, Mo0.377%, P0.012%, S0.009%, V0.052%, Ti0.017% and Al0.019%; Or, C0.167%, Si0.298%, Mn0.499%, Cr1.10%, Mo0.405%, P0.017%, S0.008%, V0.053%, Ti0.014% and Al0.016%.
Another technical problem to be solved by this invention is to provide the anti-H of a kind of high-intensity high-tenacity 2the preparation method of S corrosion oil pipe, can prepare the anti-H of high-intensity high-tenacity with good corrosion resistance 2s corrodes oil pipe.
Another technical scheme of the present invention is as follows:
The anti-H of a kind of high-intensity high-tenacity 2the preparation method of S corrosion oil pipe, comprising: the rolling of STEELMAKING PRODUCTION, steel and roll the thermal treatment of state steel, the anti-H of high-intensity high-tenacity preparing 2the quality percentage composition of the material chemical composition of S corrosion oil pipe comprises: C0.158%～0.0.167%, Si0.298%～0.322%, Mn0.499%～0.514%, Cr0.98%～1.12%, Mo0.377%～0.405%, P≤0.018%, S≤0.01%, V0.051%～0.054%, Ti0.011%～0.017%, Al0.016%～0.021%, all the other are Fe, and massfraction amounts to 100%.
Further, described STEELMAKING PRODUCTION comprises: hot metal pretreatment, converter smelting, LF refining, VD vacuum outgas and round billet continuous casting.
Further, described converter smelting adopts desulphurised hot metal to smelt, every stove molten iron is 100 tons, every stove molten iron adds ferrosilicon 350kg, ferromanganese 850kg, ferrochrome 2000kg, molybdenum-iron 880kg, vanadium iron 100kg, ferrotianium 50kg, the quality percentage composition of the composition of the molten iron of the terminal of described converter smelting comprises: C>=0.06%, and P≤0.015%, described converter smelting adopts single slag technique to smelt, before tapping, every stove molten iron adds the slag making of 200kg lime, finishing slag basicity>=3.0; Described LF refining is carried out slag making desulfurization, composition adjustment and warming temperature according to the molten steel composition of converter smelting and temperature, and slag former is CaO-CaF 2molten steel per ton adds 8-10kg slag former, adjusting molten steel composition by following quality percentage composition comprises: C0.16%, Si0.30%, Mn0.50%, Cr1.0%, Mo0.40%, P≤0.02%, S≤0.015%, V0.052%, Ti0.015%, Al0.02%, and the target temperature of warming temperature is 1536 ℃; Vacuum tightness≤the 0.06KPa of described VD vacuum outgas, dark vacuum time>=13min, soft blow Ar>=10min; The constant pulling rate of described round billet continuous casting is 1m/min, molten steel overheat Δ T≤30 ℃.
Further, the rolling of described steel mainly comprises: the heating of circle base, perforation, tube rolling and tension reducing.
Further: the temperature of described round base heating is 1250～1270 ℃, and the temperature of described perforation is 1180～1250 ℃, and the temperature of described tube rolling is 1020～1150 ℃, and the temperature of described tension reducing is 750～820 ℃.
Further: described in roll the thermal treatment of state steel comprise quench and tempering, the temperature of described quenching is 920 ± 10 ℃, 920 ± 10 ℃ insulation 65～70 minutes; The temperature of described tempering was 680 ± 10 ℃, 680 ± 10 ℃ of insulations 70～80 minutes.
Further, the anti-H of described high-intensity high-tenacity preparing 2the quality percentage composition of the material chemical composition of S corrosion oil pipe comprises: C0.164%, Si0.317%, Mn0.514%, Cr1.12%, Mo0.398%, P0.018%, S0.010%, V0.051%, Ti0.011% and Al0.021%; Or, C0.160%, Si0.322%, Mn0.504%, Cr1.02%, Mo0.386%, P0.015%, S0.008%, V0.054%, Ti0.015% and Al0.020%; Or, C0.158%, Si0.305%, Mn0.501%, Cr0.98%, Mo0.377%, P0.012%, S0.009%, V0.052%, Ti0.017% and Al0.019%; Or, C0.167%, Si0.298%, Mn0.499%, Cr1.10%, Mo0.405%, P0.017%, S0.008%, V0.053%, Ti0.014% and Al0.016%.
Technique effect of the present invention is as follows:
1, the anti-H of high-intensity high-tenacity of the present invention 2the chemical composition of the material of S corrosion oil pipe rationally makes the anti-H of high-intensity high-tenacity 2s corrosion oil pipe has higher anti-H 2s corrosive nature.
2, the present invention adopts refined crystalline strengthening and precipitation strength technology to make material have high strength and high tenacity, reasonably smelts continuous casting process, rolling technology, thermal treatment process and make product have higher exploitativeness.
3, the anti-H of high-intensity high-tenacity provided by the invention 2the anti-H of high-intensity high-tenacity that the preparation method of S corrosion oil pipe obtains 2the quality of S corrosion oil pipe is good, and production efficiency is high, cost is low, makes material energy-saving environmental protection, good in economic efficiency, is suitable for scale operation, has good marketing using value.
Embodiment
From the market requirement and technical barrier, by each element, the effect in material has designed rational chemical composition in the present invention, produce intensity up to 110psi grade of steel by smelting continuous casting, rolling, hardening and tempering process, impelling strength is higher than API5CT standard-required, and the good anti-H of high-intensity high-tenacity of corrosion resistance 2s corrodes oil pipe.The anti-H of high-intensity high-tenacity of the present invention 2the preparation method's of S corrosion oil pipe concrete steps are as follows:
Step S1: STEELMAKING PRODUCTION
STEELMAKING PRODUCTION comprises: hot metal pretreatment, converter smelting, LF refining, VD vacuum outgas and round billet continuous casting.Steelmaking process adopts fixed nitrogen technology, deoxy technology, Clean Steel technology to make blank have good quality.
By hot metal pretreatment, molten iron is carried out to pre-desulfurization, sulphur quality percentage composition is controlled at below 0.3%.
Converter smelting adopts desulphurised hot metal, for suppressing non-metallic inclusion in material, ferrosilicon, ferromanganese, ferrochrome, molybdenum-iron, vanadium iron and ferro-titanium be necessary deoxidation alloying before adding, and add-on calculates according to Composition Design content requirement in its recovery rate, ferrous alloy interalloy content, steel.Every stove molten iron is 100 tons, and the every stove of ferrosilicon adds 350kg, the every stove of ferromanganese to add 850kg, the every stove of ferrochrome to add 2000kg, the every stove of molybdenum-iron to add 880kg, the every stove of vanadium iron to add 100kg, the every stove of ferrotianium to add 50kg.Due to carburetting time, can make in material gas content increase as oxygen nitrogen, therefore the control target of the quality percentage composition of the composition of the molten iron of converter terminal comprises: C >=0.06%, P≤0.015%.Adopt single slag technique to smelt, before tapping, every stove molten iron adds the slag making of 200kg lime, finishing slag basicity >=3.0.For guaranteeing the cleanliness factor of material, necessary pushing off the slag when tapping, pushing off the slag unsuccessfully must be skimmed.
In LF refining link, carry out slag making desulfurization, composition adjustment and warming temperature according to converter molten steel composition and temperature.Slag former adopts CaO-CaF 2molten steel per ton adds 8-10kg slag former, the target value of adjusting molten steel composition by following quality percentage composition comprises: C0.16%, Si0.30%, Mn0.50%, Cr1.0%, Mo0.40%, P≤0.018%, S≤0.01%, V0.052%, Ti0.015%, Al0.02%, the target temperature of warming temperature is 1536 ℃.
The dark vacuum tightness target value≤0.06KPa of VD vacuum outgas, dark vacuum time >=13 minute, soft blow Ar >=10 minute, to guarantee gas content lower in material.
Round billet continuous casting process adopts induction stirring technique, and constant pulling rate is controlled at 1m/min, molten steel overheat Δ T≤30 ℃.Adopt way of stacking to carry out cooling, should avoid air port simultaneously.
Step S2: the rolling of steel
The rolling of steel mainly comprises: the heating of circle base, perforation, tube rolling and tension reducing, detailed process is: circle base → sawing → circle base heating → perforation → tube rolling → tension reducing → cooling → crop end → align → check → pack → weigh → warehouse-in.Application Ф 159MPM unit rolling specs is the weldless steel tube of Φ 73.02mm × 5.51mm, chamber thermal modeling test by experiment, the rolling technology of optimization the best, concrete rolling technology is that circle base is heated to 1250～1270 ℃ in rotary heating furnace, the temperature of circle base perforation is 1180～1250 ℃, the temperature of tube rolling is 1020～1150 ℃, and the temperature of tension reducing is 750～820 ℃.This rolling technology has guaranteed the lumber recovery of weldless steel tube.
Step S3: roll the thermal treatment of state steel
Roll the thermal treatment of state steel and comprise quenching and tempering.This steel grade Ac1 temperature is 706 ℃, and Ac3 temperature is 863 ℃, and the temperature of quenching is higher than 30～70 ℃ of Ac3 temperature, quench and commonly use experimental formula т=a × K × D calculating heat-up time, in formula, т is heat-up time, and a is heating coefficient, and on-the-spot heat treatment furnace heating coefficient is 3, K is shove charge correction factor, value is that 4.2, D is sample net thickness, and the net thickness after roll seamless steel tube is generally 5.5mm, therefore quenching temperature was 920 ± 10 ℃, 920 ± 10 ℃ of insulations 65～70 minutes; Tempering temperature is lower than Ar1 temperature, tests chamber optimization of Heat Treatment Process by chamber, finally determines that the temperature of tempering is 680 ± 10 ℃, and tempering is about 1.2 times of the heat-up times of quenching heat-up time, therefore 680 ± 10 ℃ of tempering insulations 70～80 minutes.This thermal treatment process has guaranteed the lumber recovery of weldless steel tube.
The anti-H of high-intensity high-tenacity producing through said process 2the quality percentage composition of S corrosion tubing material chemical composition is: C0.158%～0.0.167%, Si0.298%～0.322%, Mn0.499%～0.514%, Cr0.98%～1.12%, Mo0.377%～0.405%, P≤0.018%, S≤0.01%, V0.051%～0.054%, Ti0.011%～0.017%, Al0.016%～0.021%, all the other are Fe, and massfraction amounts to 100%.
Chemical composition to each embodiment detects, the anti-H of high-intensity high-tenacity of each embodiment 2the quality percentage composition of S corrosion tubing material chemical composition is as shown in table 1.Harmful element in each embodiment and the content of gas are as shown in table 2.
By the strict control of the content to embrittlement crystal boundary element S, P and harmful element As, Sn, Pb, Sb and Bi, guarantee the mechanical property that oil pipe is good.By controlling C and Mn chemical composition in steel, improve the solidity to corrosion of steel.Strengthen resistance to corrosion by the Cr that adds certain content, improve steel grade hardening capacity.By adding Mo to improve hardening capacity and thermostrength.Ti is strong reductor in steel, and it can make the dense internal organization of steel, crystal grain thinning, thus improve the mechanical property of steel.V can thinning microstructure crystal grain, improves intensity and toughness.Al can crystal grain thinning, improves impelling strength, and Al also has oxidation-resistance and corrosion resistance, and Al and Cr, Si share, and can significantly improve the high temperature non-scale performance of steel and the ability of high-temperature corrosion resistance.
To the anti-H of the high-intensity high-tenacity of each embodiment 2the metallographic structure of S corrosion oil pipe detects, and mechanical property is tested, and result respectively as shown in Table 3 and Table 4.
The each embodiment composition of table 1 (mass percent/%)
Embodiment C Si Mn P S Cr Mo V Ti Al
Embodiment 1 0.164 0.317 0.514 0.018 0.010 1.12 0.398 0.051 0.011 0.021
Embodiment 2 0.160 0.322 0.504 0.015 0.008 1.02 0.386 0.054 0.015 0.020
Embodiment 3 0.158 0.305 0.501 0.012 0.009 0.98 0.377 0.052 0.017 0.019
Embodiment 4 0.167 0.298 0.499 0.017 0.008 1.10 0.405 0.053 0.014 0.016
The each embodiment five-harmful elements of table 2 and gas content (ppm)
Embodiment As Sn Sb Bi Pb H O N
Embodiment 1 31 30 2.1 0.1 18 0.2 18 79
Embodiment 2 19 31 3.5 0.2 15 1.2 26 68
Embodiment 3 33 28 3.7 0.3 20 0.9 27 43
Embodiment 4 30 29 1.6 0.1 17 1.1 21 57
Target value ≤100 ≤100 ≤50 ≤50 ≤50 ≤2.5 ≤30 ≤80
The metallographic structure detected result of the each embodiment of table 3
The mechanical experimental results of the each embodiment of table 4
Figure BDA0000468426280000062
Figure BDA0000468426280000071
As can be found from Table 3, each example inclusion is tiny, be evenly distributed, and weave construction is suitable, and crystal grain is superfine crystal particle, and grain fineness number can reach 10 grades.As can be seen from Table 4, each embodiment has good strength, higher toughness, and the weldless steel tube of preparing with it, has good high epistasis and high tenacity.
To the anti-H of high-intensity high-tenacity of the present invention 2its anti-H of S corrosion coiled tubing test 2the performance of S corrosion.According to the NACE solution of the NACE Standard TM0177-2005 of National Association of Corrosion Engineers (NACE) standard recommendation, the sample cleaning is placed in the corrosion container of injection experiments liquid and sealing, after logical inert gas purge experiment container, carefully load, pass into H 2s gas is also saturated to it, the record experiment time opening, within continuous 720 hours, soaks, under amplifying 10 times, checks whether sample ruptures or have destructive crackle through NACE solution.Experimental result shows, the stretching of experience 720h permanent load, and sample all remains intact, and does not occur corrosion cracking phenomenon, and the anti-H of material is described 2the ability of S stress corrosion crack reaches standard-required.
Adopt Composition Design of the present invention and preparation method to prepare 1 ton of steel and can create economic benefit more than 300 yuan, optimize product structure, improve product specification, fill up at anti-H 2the blank of S corrosion field.

Claims (9)

1. the anti-H of high-intensity high-tenacity 2s corrodes oil pipe, it is characterized in that, the quality percentage composition of its material chemical composition comprises: C0.158%～0.0.167%, Si0.298%～0.322%, Mn0.499%～0.514%, Cr0.98%～1.12%, Mo0.377%～0.405%, P≤0.018%, S≤0.01%, V0.051%～0.054%, Ti0.011%～0.017%, Al0.016%～0.021%, all the other are Fe, and massfraction amounts to 100%.
2. the anti-H of high-intensity high-tenacity as claimed in claim 1 2s corrodes oil pipe, it is characterized in that, the quality percentage composition of its chemical composition comprises: C0.164%, Si0.317%, Mn0.514%, Cr1.12%, Mo0.398%, P0.018%, S0.010%, V0.051%, Ti0.011% and Al0.021%; Or, C0.160%, Si0.322%, Mn0.504%, Cr1.02%, Mo0.386%, P0.015%, S0.008%, V0.054%, Ti0.015% and Al0.020%; Or, C0.158%, Si0.305%, Mn0.501%, Cr0.98%, Mo0.377%, P0.012%, S0.009%, V0.052%, Ti0.017% and Al0.019%; Or, C0.167%, Si0.298%, Mn0.499%, Cr1.10%, Mo0.405%, P0.017%, S0.008%, V0.053%, Ti0.014% and Al0.016%.
3. the anti-H of high-intensity high-tenacity 2the preparation method of S corrosion oil pipe, is characterized in that, comprising: the rolling of STEELMAKING PRODUCTION, steel and roll the thermal treatment of state steel, the anti-H of high-intensity high-tenacity preparing 2the quality percentage composition of the material chemical composition of S corrosion oil pipe comprises: C0.158%～0.0.167%, Si0.298%～0.322%, Mn0.499%～0.514%, Cr0.98%～1.12%, Mo0.377%～0.405%, P≤0.018%, S≤0.01%, V0.051%～0.054%, Ti0.011%～0.017%, Al0.016%～0.021%, all the other are Fe, and massfraction amounts to 100%.
4. the anti-H of high-intensity high-tenacity as claimed in claim 3 2the preparation method of S corrosion oil pipe, is characterized in that, described STEELMAKING PRODUCTION comprises: hot metal pretreatment, converter smelting, LF refining, VD vacuum outgas and round billet continuous casting.
5. the anti-H of high-intensity high-tenacity as claimed in claim 4 2the preparation method of S corrosion oil pipe, is characterized in that,
Described converter smelting adopts desulphurised hot metal to smelt, every stove molten iron is 100 tons, every stove molten iron adds ferrosilicon 350kg, ferromanganese 850kg, ferrochrome 2000kg, molybdenum-iron 880kg, vanadium iron 100kg, ferrotianium 50kg, the quality percentage composition of the composition of the molten iron of the terminal of described converter smelting comprises: C >=0.06%, P≤0.015%, described converter smelting adopts single slag technique to smelt, and before tapping, every stove molten iron adds the slag making of 200kg lime, finishing slag basicity >=3.0;
Described LF refining is carried out slag making desulfurization, composition adjustment and warming temperature according to the molten steel composition of converter smelting and temperature, and slag former is CaO-CaF 2molten steel per ton adds 8-10kg slag former, adjusting molten steel composition by following quality percentage composition comprises: C0.16%, Si0.30%, Mn0.50%, Cr1.0%, Mo0.40%, P≤0.018%, S≤0.01%, V0.052%, Ti0.015%, Al0.02%, and the target temperature of warming temperature is 1536 ℃;
Vacuum tightness≤the 0.06KPa of described VD vacuum outgas, dark vacuum time >=13min, soft blow Ar >=10min;
The constant pulling rate of described round billet continuous casting is 1m/min, molten steel overheat Δ T≤30 ℃.
6. the anti-H of high-intensity high-tenacity as claimed in claim 3 2the preparation method of S corrosion oil pipe, is characterized in that, the rolling of described steel mainly comprises: the heating of circle base, perforation, tube rolling and tension reducing.
7. the anti-H of high-intensity high-tenacity as claimed in claim 6 2the preparation method of S corrosion oil pipe, is characterized in that: the temperature of described round base heating is 1250～1270 ℃, and the temperature of described perforation is 1180～1250 ℃, and the temperature of described tube rolling is 1020～1150 ℃, and the temperature of described tension reducing is 750～820 ℃.
8. the anti-H of high-intensity high-tenacity as claimed in claim 3 2the preparation method of S corrosion oil pipe, is characterized in that: described in roll the thermal treatment of state steel and comprise and quenching and tempering, the temperature of described quenching was 920 ± 10 ℃, 920 ± 10 ℃ of insulations 65～70 minutes; The temperature of described tempering was 680 ± 10 ℃, 680 ± 10 ℃ of insulations 70～80 minutes.
9. the anti-H of high-intensity high-tenacity as described in claim 3～8 any one 2the preparation method of S corrosion oil pipe, is characterized in that the anti-H of described high-intensity high-tenacity preparing 2the quality percentage composition of the material chemical composition of S corrosion oil pipe comprises: C0.164%, Si0.317%, Mn0.514%, Cr1.12%, Mo0.398%, P0.018%, S0.010%, V0.051%, Ti0.011% and Al0.021%; Or, C0.160%, Si0.322%, Mn0.504%, Cr1.02%, Mo0.386%, P0.015%, S0.008%, V0.054%, Ti0.015% and Al0.020%; Or, C0.158%, Si0.305%, Mn0.501%, Cr0.98%, Mo0.377%, P0.012%, S0.009%, V0.052%, Ti0.017% and Al0.019%; Or, C0.167%, Si0.298%, Mn0.499%, Cr1.10%, Mo0.405%, P0.017%, S0.008%, V0.053%, Ti0.014% and Al0.016%.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108251754A (en) * 2017-12-06 2018-07-06 包头钢铁（集团）有限责任公司 The anti-H of high-intensity and high-tenacity2S/CO2Corrode oil pipe and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS634047A (en) * 1986-06-20 1988-01-09 Sumitomo Metal Ind Ltd High-tensile steel for oil well excellent in sulfide cracking resistance
CN103361558A (en) * 2013-05-09 2013-10-23 内蒙古包钢钢联股份有限公司 Rare-earth-containing wet-H2S-corrosion-resistant T95 steel-grade oil well pipe and production method thereof
CN103436787A (en) * 2013-08-23 2013-12-11 内蒙古包钢钢联股份有限公司 Low-cost rare earth-containing anti-H2S corrosion petroleum casing pipe material and production method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS634047A (en) * 1986-06-20 1988-01-09 Sumitomo Metal Ind Ltd High-tensile steel for oil well excellent in sulfide cracking resistance
CN103361558A (en) * 2013-05-09 2013-10-23 内蒙古包钢钢联股份有限公司 Rare-earth-containing wet-H2S-corrosion-resistant T95 steel-grade oil well pipe and production method thereof
CN103436787A (en) * 2013-08-23 2013-12-11 内蒙古包钢钢联股份有限公司 Low-cost rare earth-containing anti-H2S corrosion petroleum casing pipe material and production method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108251754A (en) * 2017-12-06 2018-07-06 包头钢铁（集团）有限责任公司 The anti-H of high-intensity and high-tenacity2S/CO2Corrode oil pipe and preparation method thereof

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