CN102409229A - N80Q-grade straight-seam electric resistance welding petroleum casing pipe and manufacturing method thereof - Google Patents
N80Q-grade straight-seam electric resistance welding petroleum casing pipe and manufacturing method thereof Download PDFInfo
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- CN102409229A CN102409229A CN2010102914432A CN201010291443A CN102409229A CN 102409229 A CN102409229 A CN 102409229A CN 2010102914432 A CN2010102914432 A CN 2010102914432A CN 201010291443 A CN201010291443 A CN 201010291443A CN 102409229 A CN102409229 A CN 102409229A
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- 238000003466 welding Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000003208 petroleum Substances 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 102220498074 Transmembrane 4 L6 family member 20_N80Q_mutation Human genes 0.000 claims abstract description 19
- 238000009749 continuous casting Methods 0.000 claims abstract description 10
- 238000005496 tempering Methods 0.000 claims abstract description 10
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 238000007670 refining Methods 0.000 claims abstract description 4
- 238000003723 Smelting Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000007669 thermal treatment Methods 0.000 claims description 20
- 238000005516 engineering process Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000000881 depressing effect Effects 0.000 claims 1
- 238000005098 hot rolling Methods 0.000 abstract description 12
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- 229910052748 manganese Inorganic materials 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 238000010791 quenching Methods 0.000 abstract 2
- 230000000171 quenching effect Effects 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 9
- 239000010955 niobium Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 239000011572 manganese Substances 0.000 description 6
- 239000003129 oil well Substances 0.000 description 6
- 229910052720 vanadium Inorganic materials 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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- 238000007664 blowing Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
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- 239000007789 gas Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
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Abstract
The invention provides an N80Q grade straight seam electric resistance welding petroleum casing pipe and a manufacturing method thereof, and the components are as follows: c: 0.15-0.20%, Si: 0.15-0.30%, Mn: 1.40-1.80%, P: less than or equal to 0.020, S: less than or equal to 0.008 percent, Ti: 0.010-0.030, Als: 0.02 to 0.05%, Nb: 0.01-0.04% and the balance Fe. The method comprises the steps of molten iron pretreatment, molten steel smelting, external refining, slab continuous casting, rolling, ERW pipe making and whole pipe tempering heat treatment, wherein in the rolling process, the slab is heated to 1200-1300 ℃, the hot rolling adopts two-stage controlled rolling, the first stage rolling temperature is 1180-1280 ℃, the final rolling temperature is more than 980 ℃, the second stage rolling temperature is less than 960 ℃, the final rolling temperature is 720-840 ℃, the rolled plate coil is cooled at the speed of 6-19 ℃/s, and the coiling temperature is 470-600 ℃; heating the whole pipe to 880-950 ℃ in the whole pipe quenching and tempering treatment, preserving heat for more than 30min, quenching with water, heating to 550-600 ℃, preserving heat for more than 80min, and air cooling and tempering. The plate coil alloy has low cost, good welding and impact toughness, easy pipe forming and consistent performance of the pipe body and the welding line.
Description
Technical field
The invention belongs to metallic substance high-strength low-alloy steel technical field; Be specifically related to a kind of high strength petroleum sleeve pipe and method of manufacture thereof; Particularly a kind of N80Q vertical masonry joint resistance welding (ERW) petroleum casing pipe and method of manufacture thereof in the API Spec 5CT standard; Its hot rolling attitude coiled sheet performance is an API J55 grade of steel, and the modified back of homogeneous tube performance is an API N80Q grade of steel.
Background technology
Petroleum casing pipe is one of the most frequently used oil country tubular good in oil field, and consumption is big, and it is many to spend, and is requisite construction material in the oil-gas field drill operation, in fld production performance history, has important role.
The API Spec 5CT of API standard code, petroleum casing pipe can adopt seamless tube and the manufacturing of ERW longitudinal resistance welded pipe.The ERW petroleum casing pipe is claimed high frequency vertical masonry joint resistance welding sleeve pipe again.Compare with seamless tube, have that wall thickness is even, dimensional precision is high, the perforation performance is good, the anti-ability of ruining of squeezing is strong, and the low significant advantage that waits of cost can substitute with the grade of steel seamless casing and use in the oil field, receives the favor in pipe factory and oil field.
Used for straight seam electric resistance welding petroleum telescopic traditional processing technology is: at first, according to the petroleum casing pipe performance demands, design suitable chemical ingredients, smelt and be rolled into hot-rolled sheet coil; Then, coiled sheet is processed ERW through the ERW mode, and welded tube weld seam or welded tube integral body are heat-treated, subsequently pipe end is carried out suitable screw thread processing, final production goes out qualified petroleum casing pipe.
API Spec 5CT standard code, the ys of N80Q steel level oil bushing body is 552～785MPa, tensile strength >=689MPa, horizontal Charpy-V impact power >=20J in the time of 0 ℃.Because this steel-grade bushing intensity is higher, reached the limit of ERW unit tubulation ability, if directly adopt N80 rank hot-rolled sheet coil to come tubulation, can bring certain difficulty to moulding.Therefore, can adopt than other J55 hot-rolled sheet coil of intensity level and carry out the ERW welding tube-making, carry out homogeneous tube thermal treatment then, make the final performance of steel pipe reach the N80Q stratification levels.And weld seam carries out identical thermal treatment process with body, and finally organizing of obtaining is identical, effectively alleviates tissue, the performance difference of weld seam and body, eliminates unrelieved stress, improves the quality of steel pipe integral.
Before the present invention, the document or the patent of invention of existing a plurality of relevant N80Q grade of steel ERW petroleum casing pipes, but the N80Q level ERW petroleum casing pipe report that manganese, low cost design in the carbon in adopting is seldom, document that following brief account and the present invention are comparatively approaching and patent:
1) Chinese patent CN101376943A, 80ksi grade of steel straight welding oil annular tube steel, sleeve pipe and method of manufacture.Contain Mo:0.1-0.5% in the composition, carry out the modified thermal treatment of homogeneous tube behind the tubulation.
2) Chinese patent CN101643883A, N80, P110, L80 grade of steel straight welding oil annular tube steel and cover pipe manufacturer.C:0.10-0.24% in this patent, lower limit are in the peritectoid district, are not suitable for continuous casting production; Add alloy Cr:0.3-0.6%, Nb:0.12-0.14, V:0.08-0.12, cost is higher; Carry out the modified thermal treatment of homogeneous tube behind the tubulation.
3) Japanese Patent JP58093821A, oil well is with the method for manufacture of electricresistance welded steel pipe.C:0.23-0.26% in this patent, Mn:1.8-2.0%, Cr:0.30-0.35, overall carbon equivalent is higher, influences toughness and weldableness; Homogeneous tube carries out normalizing or modified thermal treatment behind the tubulation.
4) Japanese Patent JP58199818A, high-strength oil well is used manufacture of steel pipe.C:0.28-0.35% in this patent, Mo:0.1-0.3%, V:0.02-0.10, C content is higher, adds noble metal Mo; Homogeneous tube carries out normalizing thermal treatment behind the tubulation.
5) Japanese Patent JP58199819A, high-strength oil well is used manufacture of steel pipe.C:0.30-0.35% in this patent, V:0.05-0.09, C content is higher, adds noble metal V; Homogeneous tube carries out normalizing thermal treatment behind the tubulation.
6) Japanese Patent JP59170223A, normalizing type homogeneous high-strength oil well electricresistance welded steel pipe method of manufacture.C:0.25-0.40% in this patent, C content is higher; Homogeneous tube carries out normalizing thermal treatment behind the tubulation.
7) Japanese Patent JP01225722A, oil well is used high-strength electric resistance welded pipe manufacturing method.Selectivity adds Nb:0-0.045%, V:0-0.10% in this patent; Hot rolling attitude steel plate (coiled sheet) is the N80 rank, and the intensity height is unfavorable for follow-up ERW tubulation; Carry out weld seam thermal treatment behind the tubulation, the consistency of performance of body and weld seam is relatively poor.
8) Japanese Patent JP07102321A, the non-thermal treatment oil well of tensile strength 800MPa HS is with the method for manufacture of steel pipe.C:0.25-0.40% in this patent, V:01-0.10%; Hot rolling attitude steel plate (coiled sheet) is the N80 rank, and the intensity height is unfavorable for follow-up ERW tubulation; Carry out weld seam thermal treatment behind the tubulation, the consistency of performance of body and weld seam is relatively poor.
Wherein 7), 8) patent is the patent of invention of hot rolling attitude N80 straight welding oil annular tube, heat-treat butt welded seam and heat affected zone, different with product of the present invention.And 1), 2), 3), 4), 5), 6) patent and product of the present invention be the most approaching, be the patent of invention of making quenched and tempered state N80Q straight welding oil annular tube, but all obvious difference arranged with the present invention.
The disclosed straight welding oil annular tube steel of above patent has reached the regulation of the API Spec5CT of API standard, but has following problem: otherwise carbon content is higher, unfavorable to weldableness and toughness; Add valuable alloy Mo, V, cost is higher; Homogeneous tube normalizing thermal treatment, impelling strength can descend to some extent.And 7) and 8) be the N80 straight welding oil annular tube of hot rolling attitude, the higher follow-up ERW tubulation difficulty of coiled sheet performance, a butt welded seam and heat affected zone thermal treatment, the consistency of performance of body and weld seam is relatively poor.
Summary of the invention
The objective of the invention is to overcome existing deficiency in the above-mentioned prior art, it is the J55 rank that a kind of hot rolling attitude coiled sheet performance is provided, and performance is other vertical masonry joint resistance welding (ERW) petroleum casing pipe and method of manufacture thereof of N80Q level after the modified thermal treatment of homogeneous tube.
One of technical scheme of the present invention provides a kind of N80Q level vertical masonry joint resistance welding (ERW) petroleum casing pipe, and its chemical ingredients (weight, %) proportioning is following: C:0.15%-0.20%; Si:0.15%-0.30%, Mn:1.40%-1.80%, P :≤0.020; S :≤0.008%, Ti:0.010%-0.030%, Als:0.02%-0.05%; Nb:0.01%-0.04%, N :≤0.008%, all the other are Fe and unavoidable impurities.
Compared with prior art, this programme C content is moderate, and the weldableness and the impelling strength of coiled sheet are good; Nb, Ti with trace replace precious metal Mo, V, reduce cost of alloy; Hot rolling attitude coiled sheet performance is lower, and follow-up tubulation moulding is easy; Homogeneous tube carries out modified thermal treatment, and performance reaches the N80Q rank, has guaranteed the consistence of body and Weld Performance simultaneously.
C: carbon is carbide forming element, is the effective element of proof strength, can improve stability after hardening capacity and the thermal treatment, the strength of materials when guaranteeing the long-time tempering of high temperature, and therefore, carbon content should not be low excessively; But the too high impelling strength and the welding property that will influence product of carbon content it is considered herein that the oil casing pipe steel as far as N80Q, and it is comparatively suitable that carbon is controlled at 0.15%-0.20%.
Si: can play the solution strengthening effect, but its too high levels can make the plasticity of steel and toughness reduce, its optimum range is 0.15%-0.30%.
Mn: manganese has the solution strengthening effect, can also increase stabilization of austenite, and is also favourable to improving hardening capacity, effectively guarantees the intensity of steel.But manganese content is excessive, can increase the center segregation tendency of continuously cast bloom, influences the homogeneity of structure of hot-strip, and its optimum range is 1.40%-1.80%.
P: phosphorus is harmful element in the steel, increases the cold shortness of steel, and welding property is degenerated, and reduces plasticity, and cold-bending property is degenerated, and should control its content≤0.020%.
S: sulphur is harmful element in the steel, makes steel produce red brittleness, reduces the ductility and the toughness of steel, and welding property is also unfavorable, reduces erosion resistance, for guaranteeing the high cleanliness of molten steel, should control its content≤0.008%.
Nb: niobium can come crystal grain thinning and the superheated susceptivity and the temper brittleness that reduce steel through precipitation strength, improves intensity, improves welding property, but too high meeting increases cost of alloy, and suitable scope is 0.01-0.04%.
Ti: titanium is strong nitrogen killer; When adding 0.015% left and right sides Ti; Can when sheet billet continuous casting, form the tiny TiN precipitated phase of high-temperature stable; This tiny TiN precipitated phase can effectively stop continuously cast bloom the growing up of austenite crystal in heat-processed, and the toughness of heat affected zone has obvious effect when improving the steel welding simultaneously, and suitable scope is 0.010-0.030%.
Als: aluminium is the reductor of using always, in steel, adds a spot of aluminium, but crystal grain thinning improves impelling strength, and suitable scope is 0.02-0.05%.
Two of technical scheme of the present invention provides a kind of N80Q grade of steel used for straight seam electric resistance welding petroleum telescopic method of manufacture, comprises hot metal pretreatment, molten steel smelting, external refining, sheet billet continuous casting, rolling, ERW tubulation and the modified thermal treatment of homogeneous tube, it is characterized in that:
1) smelts continuous casting process: hot metal pretreatment; Converter smelting-through top blast or top bottom blowing; External refining-through RH vacuum-treat, the frivolous sulphuring treatment of LF stove and carry out calcium and handle with the control inclusion morphology and improve ductility, toughness and the cold-bending property of steel; Sheet billet continuous casting-continuous casting adopt induction stirring or dynamically gently depress, with the quality of raising continuous casting steel billet.
2) rolling technology: continuous casting steel billet is heated to 1200-1300 ℃ through process furnace; With after the hot continuous mill group adopts the controlled rolling of two stages, the fs start rolling temperature is 1180-1280 ℃, and finishing temperature is greater than 980 ℃; The subordinate phase start rolling temperature is less than 960 ℃; Finishing temperature is 720-840 ℃, rolls the back coiled sheet and cools off with the speed of 6-19 ℃/s, carries out coiled sheet 470-600 ℃ of temperature and batches.The ys that makes hot rolling attitude coiled sheet is 440-530MPa, and tensile strength is 550-690MPa.
3) homogeneous tube quenching-and-tempering process: behind the ERW tubulation, homogeneous tube is heated to 880-950 ℃, more than the insulation 30min, and shrend; Be heated to 550-600 ℃ to homogeneous tube again, more than the insulation 80min, the air cooling tempering.Making the ys of modified back homogeneous tube is 620-720MPa, and tensile strength is 770-840MPa, laterally-10 ℃ of Charpy-V impact power Akv >=50J.
The special feature of technical scheme of the present invention is: 1) C content is moderate, and the weldableness and the impelling strength of coiled sheet are good; 2) Nb, the Ti with trace replaces precious metal Mo, V, reduces cost of alloy; 3) hot rolling attitude coiled sheet performance is lower, and follow-up tubulation moulding is easy; 4) homogeneous tube carries out modified thermal treatment, and performance is the N80Q rank, has guaranteed the consistence of body and Weld Performance simultaneously.
Embodiment
Through embodiment the present invention is done further description below.
The chemical ingredients of embodiment of the invention steel is seen table 1.The rolling technology of embodiment of the invention steel and hot rolling attitude mechanical property are seen table 2.The hardening and tempering process and the mechanical property of embodiment of the invention pipe are seen table 3.
The chemical ingredients of table 1 embodiment of the invention steel (wt, %)
| Embodiment | C | Si | Mn | P | S | Nb | Ti | Als | N |
| 1 | 0.15 | 0.15 | 1.75 | 0.0075 | 0.0054 | 0.032 | 0.010 | 0.028 | 0.0042 |
| 2 | 0.17 | 0.20 | 1.54 | 0.0080 | 0.0053 | 0.033 | 0.020 | 0.038 | 0.0051 |
| 3 | 0.20 | 0.12 | 1.50 | 0.0080 | 0.0054 | 0.028 | 0.030 | 0.049 | 0.0049 |
| 4 | 0.20 | 0.19 | 1.60 | 0.0097 | 0.0057 | 0.032 | 0.013 | 0.024 | 0.0062 |
| 5 | 0.19 | 0.21 | 1.46 | 0.0150 | 0.0038 | 0.040 | 0.010 | 0.042 | 0.0045 |
| 6 | 0.18 | 0.24 | 1.51 | 0.0150 | 0.0033 | 0.018 | 0.018 | 0.035 | 0.0049 |
The rolling technology of table 2 embodiment of the invention steel and hot rolling attitude mechanical property
The hardening and tempering process and the mechanical property of table 3 embodiment of the invention pipe
Visible by table 3, adopt composition design of the present invention and rolling, homogeneous tube thermal treatment process, the N80Q grade of steel used for straight seam electric resistance welding petroleum sleeve pipe of producing has satisfied the requirement of API SPEC 5CT standard to N80Q level steel pipe.
Claims (4)
1. a N80Q rank used for straight seam electric resistance welding petroleum sleeve pipe is characterized in that its chemical component weight per-cent is: C:0.15%-0.20%, Si:0.15%-0.30%; Mn:1.40%-1.80%, P :≤0.020, S :≤0.008%; Ti:0.010%-0.030%, Als:0.02%-0.05%, Nb:0.01%-0.04%; N :≤0.008%, all the other are Fe and unavoidable impurities.
2. the said N80Q rank of claim 1 used for straight seam electric resistance welding petroleum telescopic method of manufacture; Comprise hot metal pretreatment, molten steel smelting, external refining, sheet billet continuous casting, rolling, ERW tubulation and the modified thermal treatment of homogeneous tube, it is characterized in that in described rolling technology, slab being heated to 1200-1300 ℃, adopt the controlled rolling of two stages through the hot continuous rolling unit; The fs start rolling temperature is 1180-1280 ℃; Finishing temperature is greater than 980 ℃, and the subordinate phase start rolling temperature is less than 960 ℃, and finishing temperature is 720-840 ℃; Roll the back coiled sheet and cool off, carry out coiled sheet 470-600 ℃ of temperature and batch with the speed of 6-19 ℃/s; In described homogeneous tube quenching-and-tempering process, homogeneous tube is heated to 880-950 ℃, more than the insulation 30min, shrend, reheat is incubated more than the 80min air cooling tempering to 550-600 ℃.
3. used for straight seam electric resistance welding petroleum telescopic method of manufacture according to claim 2 is characterized in that in described furnace outer refining process, adopting RH vacuum-treat, the frivolous sulphuring treatment of LF stove and calcium to handle.
4. used for straight seam electric resistance welding petroleum telescopic method of manufacture according to claim 2 is characterized in that in described sheet billet continuous casting technology, adopting induction stirring or dynamically gently depressing.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102912230A (en) * | 2012-10-23 | 2013-02-06 | 鞍钢股份有限公司 | 690 MPa-grade electric resistance welding petroleum casing pipe and manufacturing method thereof |
| CN102936687A (en) * | 2012-10-29 | 2013-02-20 | 武汉钢铁(集团)公司 | 110ksi-level ERW (electric resistance welding) steel belt for oil casings and production method thereof |
| CN103147009A (en) * | 2012-12-13 | 2013-06-12 | 济钢集团有限公司 | N80Q steel-grade oil casing and manufacture method thereof |
| CN103469072A (en) * | 2013-09-07 | 2013-12-25 | 鞍钢股份有限公司 | Straight welded petroleum casing pipe and manufacturing method thereof |
| CN103882302A (en) * | 2012-12-21 | 2014-06-25 | 鞍钢股份有限公司 | Steel for N80-Q-grade straight seam welding oil casing and manufacturing method thereof |
| CN105695882A (en) * | 2014-11-28 | 2016-06-22 | 鞍钢股份有限公司 | J55-grade low-yield-ratio electric resistance welding sleeve steel and manufacturing method thereof |
| CN111996447A (en) * | 2020-08-03 | 2020-11-27 | 鞍钢股份有限公司 | Steel for large thick-wall high-toughness resistance welding sleeve and manufacturing method thereof |
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| CN113817960A (en) * | 2021-08-10 | 2021-12-21 | 包头钢铁（集团）有限责任公司 | N80 petroleum casing pipe steel and preparation method thereof |
| CN115198186A (en) * | 2022-07-05 | 2022-10-18 | 鞍钢股份有限公司 | High-strength electric resistance welding petroleum casing for deep well and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328559A (en) * | 2007-06-22 | 2008-12-24 | 宝山钢铁股份有限公司 | Steel for low yield ratio petroleum case pipe, petroleum case pipe and manufacturing method thereof |
| CN101481995A (en) * | 2008-01-11 | 2009-07-15 | 江苏嘉宝科技制管有限公司 | High steel level petroleum casing pipe and oil pipe manufacturing process |
| CN101705424A (en) * | 2009-12-18 | 2010-05-12 | 江苏省沙钢钢铁研究院有限公司 | Steel for N80-grade welding petroleum casing pipe and manufacturing method thereof |
-
2010
- 2010-09-21 CN CN201010291443.2A patent/CN102409229B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328559A (en) * | 2007-06-22 | 2008-12-24 | 宝山钢铁股份有限公司 | Steel for low yield ratio petroleum case pipe, petroleum case pipe and manufacturing method thereof |
| CN101481995A (en) * | 2008-01-11 | 2009-07-15 | 江苏嘉宝科技制管有限公司 | High steel level petroleum casing pipe and oil pipe manufacturing process |
| CN101705424A (en) * | 2009-12-18 | 2010-05-12 | 江苏省沙钢钢铁研究院有限公司 | Steel for N80-grade welding petroleum casing pipe and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郭智韬等: "N80Q钢级石油套管研制", 《包钢科技》 * |
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