CN109047693A - A kind of economical HIC resistance pipeline steel plate X52MS and its manufacturing method of TMCP delivery - Google Patents

A kind of economical HIC resistance pipeline steel plate X52MS and its manufacturing method of TMCP delivery Download PDF

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CN109047693A
CN109047693A CN201810965532.7A CN201810965532A CN109047693A CN 109047693 A CN109047693 A CN 109047693A CN 201810965532 A CN201810965532 A CN 201810965532A CN 109047693 A CN109047693 A CN 109047693A
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steel plate
continuous casting
hic resistance
x52ms
pipeline steel
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CN109047693B (en
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孙宪进
高助忠
许晓红
白云
李经涛
苗丕峰
林涛
石艾来
许峰
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Jiangyin Xingcheng Special Steel Works Co Ltd
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Jiangyin Xingcheng Special Steel Works Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/06—Extraction of hydrogen
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

The invention discloses a kind of economical HIC resistance pipeline steel plate X52MS of TMCP delivery, chemical component is C 0.08-0.095, Si 0.3-0.4；Mn 0.7-0.9；Nb+Ti≤0.03；P≤0.008；S≤0.0008；[N]≤0.002, [O]≤0.0010, [H]≤0.0001, surplus are Fe and inevitable impurity；Cr, Ni, Mo, Cu are not added in chemical component deliberately, product has uniform ferritic-pearlitic tissue, and banded structure is less than 2 grades.Process flow: KR molten iron pretreatment-converter-LF refining-RH vacuum outgas-sheet billet continuous casting-slow cooling-rolling-cooling-essence inspection-performance detection-is packed and stored.The application realizes the production of the Pipeline Steel Plate X65MS with ingredient economy and Properties of HIC resistance.

Description

A kind of economical HIC resistance pipeline steel plate X52MS and its manufacturing method of TMCP delivery
Technical field
The invention belongs to metallurgical technology field, be related to a kind of more economical TMCP delivery of ingredient has Properties of HIC resistance Pipeline Steel Plate X52MS and its manufacturing method.
Background technique
Currently, pipeline is still the transportation means of the main energy sources such as petroleum, natural gas, and the most economic, safety Long distance delivery mode.With the diversity of conveying energy medium, contain a small amount of hydrogen sulfide etc. in part petroleum, natural gas Corrosive medium has certain corrosivity to pipeline, seriously affects the safety of conveyance conduit.To prevent due to hydrogen sulfide corrosion Caused cracking develops a variety of hic resistance, SSC Pipeline Steel Plate in industry, using grade of steel is mainly at present BMS-X65MS, this is specially The steel grade that benefit is related to is X52MS.
For current research it is believed that there are two types of the main reason for lead to hydrogen sulfide corrosion cracking, one is hydrogen atoms to press from both sides Sundries position assembles to form hydrogen molecule, causes to crack；One is the aggregations of hydrogen atom center segregation tissue location to crack.For this purpose, mesh Before the main means taken be to reduce carbon content to mitigate center segregation, generally within 0.05%, carbon content reduces carbon content Afterwards, the intensity to guarantee steel plate, it usually needs the expensive alloying elements such as Cr, Ni, Mo are added, to guarantee the intensity of steel plate.
The multinomial patent such as patent announcement CN 10493715A, CN100359035 C proposed using Ultra-low carbon+Nb, V, the production technology exploitation HIC resistance pipeline steel of the alloying elements such as Cr, Ni, Mo is kept away although Ultra-low carbon can objectively mitigate segregation Exempt from excessive pearlite band and still similarly brings high production cost.Meanwhile in smelting, need using RLR technique into Row production, is vacuum-treated has a significant impact to manufacturing cost and production efficiency twice.
The study found that influence of the Mn element to center segregation is bigger for C element, especially for HIC sensitivity Property for, excessively high Mn will lead to HIC sensibility and obviously become larger, so as to cause Properties of HIC resistance variation.In conjunction with current research at Fruit, it is proposed that a kind of economical HIC resistance pipeline steel and its manufacturing method with good economy and Properties of HIC resistance, can save Go the addition of the precious metals element such as Cr, Ni, Mo, Cu.
Summary of the invention
For the HIC resistance pipeline steel plate X52MS of TMCP delivery, designed by reasonable ingredient to remove expensive alloying elements Economy is improved, while setting heating, rolling and cooling technique accurately to guarantee the intensity and Properties of HIC resistance of steel plate, emphasis solution The HIC resistance pipeline steel manufacturing cost of certainly current TMCP delivery is high, the unstable technical problem of HIC performance.
The specific technical solution that the application solves the above problems is a kind of economical HIC resistance pipeline steel plate of TMCP delivery X52MS, % is calculated as chemical component by mass percentage, C 0.08-0.095, Si 0.3-0.4；Mn 0.7-0.9；Nb+Ti≤ 0.03；P≤0.008；S≤0.0008；[N]≤0.002, [O]≤0.0010, [H]≤0.0001, surplus is for Fe and unavoidably Impurity；Cr, Ni, Mo, Cu are not added in chemical component deliberately.
Product group is woven to uniform ferritic-pearlitic tissue, and banded structure is less than 2 grades.
Compared with the HIC resistance pipeline steel of existing TMCP state delivery, guarantee the final strong of steel plate by improving carbon content Degree, the carbon content of usual HIC resistance pipeline steel are 0.02-0.05%, the invention patent 0.08-0.095%, and improving carbon can support It eliminates except the problem of caused intensity declines after the expensive alloying elements such as Cr, Ni, Mo；Meanwhile reducing Mn content, usual hic resistance The Mn content scope of design of pipe line steel steel plate is 1.1-1.3%, and Mn content is 0.7-0.9% in the invention patent, reduces Mn and contains Amount can mitigate the Mn segregation of center, so as to improve the Properties of HIC resistance of final steel plate.
The effect of all key components contained in the present invention and its content selection reason are described as follows:
C: the best intensified element of economy in steel, to intensity contribution maximum.It is excessively high then bad to toughness, weldability, also It is easy to aggravate center segregation, causes ferritic-pearlitic banded structure serious, it is poor so as to cause HIC performance.The invention patent In, the relationship between emphasis balanced economy, intensity and Properties of HIC resistance three, final C content range of choice is 0.08- 0.095%.
Si: the intensity of steel is improved with solution strengthening form, it is unfavorable that excessively high meeting Surface Quality, toughness and welding performance generate It influences, emphasis considers the influence to intensity in the invention patent, comprehensively considers, and Si content range of choice of the present invention is 0.3- 0.4%.
Mn: in HIC resistance pipeline, carbon is only second to the contribution of intensity, it may have good economy, still, excessive Mn can aggravate center segregation, and especially in the higher situation of C content, the HIC sensibility of material can be greatly improved in excessive Mn, Therefore, in the invention patent, under the premise of improving C content, the range of Mn content is reduced, HIC performance is guaranteed with this Stability.Comprehensively consider, Mn content range is 0.7-0.9%；
Nb, Ti: main microalloy element passes through refined crystalline strengthening.Precipitation strength refines crystal grain, improves intensity and toughness. The range of choice of Nb+Ti content of the present invention is 0.02-0.03%, and the free ratio of the two is added, and is not 0.
P, S, [O], [N], [H]: it is excessively high to will lead to the increase of HIC sensibility as the major impurity element in steel, lower Under alloy content, control more lower better.According to existing actual production conditions, the choosing of P, S, [O], [N], [H] content of the present invention Selecting range is P≤0.008；S≤0.0008；[N]≤0.002, [O]≤0.0010, [H]≤0.0001, P+S+ [N]+[O]+[P] ≤100ppm。
The production procedure of the application steel plate are as follows: KR molten iron pretreatment-converter-LF refining-RH vacuum outgas-sheet billet continuous casting- Slow cooling-rolling-cooling-essence inspection-performance detection-is packed and stored.Specific step is as follows
(1) raw materials for metallurgy is successively through the pretreatment of KR desulfurizing iron, converter top and bottom blowing, LF refining, RH refining and continuous casting work Skill processing, the high-purity continuous casting billet of formation, P≤0.008；S≤0.0008；[N]≤0.002, [O]≤0.0010, [H]≤ 0.0001, A, tetra- type impurity summation of B, C, D is less than or equal to 2 grades, using in continuous casting billet slighter compress and electromagnetic agitating technology control Heart segregation, blank is according to Mannesmann's standard grading M1；Covering slow cooling is implemented to continuous casting billet after the completion of continuous casting and expands hydrogen processing, slow cooling Time is >=120 hours；
(2) continuous casting billet is heated to 1250~1280 DEG C, soaking zone keeps the temperature 150-180min, and continuous casting billet uses height after coming out of the stove Press water de-scaling；
(3) use two-phase control rolling technique: the first stage, start rolling temperature was at 1100-1150 DEG C for rough rolling step；Second-order Section is the finish rolling stage, and start rolling temperature is 880-920 DEG C, controls 820-880 DEG C of finishing temperature, rolls rear thermal straightening；
(4) enter the cooling equipment of ACC after steel plate rolling to be cooled down, final cooling temperature is controlled at 600-650 DEG C；
(5) steel plate carries out offline heap slow cooling, heap slow cooling time >=24 hour after thermal straightening.
The present invention changes previous HIC resistance pipeline steel plate using Ultra-low carbon (0.02-0.05%)+a variety of valuable microalloyings Ingredient mentality of designing reduces expensive alloying elements, improves economical by improving carbon content (0.08-0.095%) come proof strength Property, while Mn content (0.7-0.9%) is reduced to avoid causing HIC to decline since center Mn is segregated；In this ingredient design basis On, by the smelting process, dynamic soft reduction technology and electromagnetic agitating technology of high purity steel, realize high-purity flawless continuous-casting billet Production, center segregation stability contorting is in 1 grade of Mannesmann；Meanwhile using improving heating temperature, extend heating time and right The accurate control of start rolling temperature, finishing temperature and the type of cooling, realizes having to the tissue of steel plate in the controlled rolling stage Effect regulation, realizes the production of the economy HIC resistance pipeline steel plate X52MS with Properties of HIC resistance.
Detailed description of the invention
Fig. 1 is the microscopic structure of X65MS steel plate of the present invention；
Fig. 2 is the hic resistance test sample screenshot face of the embodiment of the present invention 1 and 2.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
The expensive alloying elements such as Ni, Mo, Cu (be used as residual elements presence), at the same strict control P, S, [O], [N], Impurity contents such as [H], and continuous casting billet center segregation is controlled using dynamic soft reduction technology and electromagnetic agitating technology, so that in Heart segregation control is at Mannesmann M1 grades；Steel rolling link, using high-temperature heating, soaking section temperature extends and protects at 1250-1280 DEG C Warm time, 150-180min further mitigate segregation by high temperature reheating；It is subsequent to take reasonable rolling and bosher Skill obtains uniform ferritic-pearlitic tissue and excellent Properties of HIC resistance.
Embodiment 1-2:
Chemical composition ranges according to the present invention and manufacturing method, through KR molten iron pretreatment-converter smelting-LF refining- RH vacuum outgas-continuous casting-continuous casting billet covering slow cooling-continuous casting billet inspection cleaning-slab heating-high-pressure water descaling-controlled rolling The processing steps such as cold-aligning-steel plate heap slow cooling are controlled, the economical hic resistance pipe of X52MS of thickness 25mm (Examples 1 and 2) is manufactured Line steel.
Continuous casting billet meets P≤0.008；S≤0.0008；[N]≤0.002, [O]≤0.0010, [H]≤0.0001, A, B, C, tetra- type impurity summation of D is less than or equal to 2 grades, is segregated using continuous casting billet slighter compress and electromagnetic agitating technology control centre, blank According to Mannesmann's standard grading M1；Covering slow cooling is implemented to continuous casting billet after the completion of continuous casting and expands hydrogen processing, slow cooling time is >=120 Hour.
Above-mentioned heating, rolling and slow cooling stage specifically comprises the processes of: 370mm thickness continuous casting billet is heated to 1250-1280 DEG C, 150-180min is kept the temperature, continuous casting billet uses high-pressure water descaling after coming out of the stove；Then two-phase control rolling, first stage open rolling are carried out 1100-1150 DEG C of temperature, workpiece thickness 75mm, rear three passages single pass is averaged reduction ratio 23%；Second stage start rolling temperature It is 880-890 DEG C, adds up percentage pass reduction 66.7%, final steel plate thickness is to carry out ACC after 25mm rolls to accelerate cooling, cooling speed 8-10 DEG C/S is spent, final cooling temperature is controlled at 620-630 DEG C；Steel plate carries out offline covering heap slow cooling, heap slow cooling time after thermal straightening >=72 hours.
Steel plate chemical component made from Examples 1 and 2 is shown in Table 1, and the mechanical property of steel plate is shown in Table 2, the microscopic structure of steel plate Clearly indicating tissue in (grab sample) such as Fig. 1, Fig. 1 is very small ferritic-pearlitic tissue, and banded structure is less than 2 Grade.
The chemical component (wt.%) of X52MS steel plate in 1 Examples 1 and 2 of table
Example C Si Mn P S Al Nb+Ti [O] [N] [H]
1 0.08 0.35 0.85 0.004 0.0006 0.023 0.028 0.0011 0.0018 0.0001
2 0.09 0.34 0.83 0.004 0.0005 0.025 0.030 0.0009 0.0021 0.0001
The mechanical property of X52MS steel plate in 2 Examples 1 and 2 of table
The Properties of HIC resistance of X52MS steel plate in 3 Examples 1 and 2 of table
In addition to the implementation, all to use equivalent transformation or equivalent replacement the invention also includes there is an other embodiments The technical solution that mode is formed should all be fallen within the scope of the hereto appended claims.

Claims (5)

1. a kind of economical HIC resistance pipeline steel plate X52MS of TMCP delivery, it is characterised in that: chemical component presses quality percentage It is calculated as than %, C 0.08-0.095, Si 0.3-0.4；Mn 0.7-0.9；Nb+Ti≤0.03；P≤0.008；S≤0.0008； [N]≤0.002, [O]≤0.0010, [H]≤0.0001, surplus are Fe and inevitable impurity；Tissue is uniform iron element Body pearlitic structrure, banded structure is less than 2 grades.
2. the economical HIC resistance pipeline steel plate X52MS of TMCP according to claim 1 delivery, it is characterised in that: chemistry at Cr, Ni, Mo, Cu are not added in point deliberately.
3. a kind of manufacturing method of the economical HIC resistance pipeline steel plate X52MS of TMCP delivery, it is characterised in that:
(1) raw materials for metallurgy successively through the pretreatment of KR desulfurizing iron, converter top and bottom blowing, LF refining, RH refining and continuous casting process at Reason, the high-purity continuous casting billet of formation, P≤0.008；S≤0.0008；[N]≤0.002, [O]≤0.0010, [H]≤0.0001, A, tetra- type impurity summation of B, C, D is less than or equal to 2 grades, is segregated using continuous casting billet slighter compress and electromagnetic agitating technology control centre, Blank is according to Mannesmann's standard grading M1；Covering slow cooling is implemented to continuous casting billet after the completion of continuous casting and expands hydrogen processing, slow cooling time is >=120 hours；
(2) continuous casting billet is heated to 1250~1280 DEG C, soaking zone keeps the temperature 150-180min, and continuous casting billet uses high pressure water after coming out of the stove De-scaling；
(3) use two-phase control rolling technique: the first stage, start rolling temperature was at 1100-1150 DEG C for rough rolling step；Second stage is Finish rolling stage, start rolling temperature are 880-920 DEG C, control 820-880 DEG C of finishing temperature, roll rear thermal straightening；
(4) enter the cooling equipment of ACC after steel plate rolling to be cooled down, final cooling temperature is controlled at 600-650 DEG C；
(5) steel plate carries out offline heap slow cooling, heap slow cooling time >=24 hour after thermal straightening.
4. the manufacturing method of the economical HIC resistance pipeline steel plate X52MS of TMCP delivery according to claim 3, feature Be: continuous casting billet with a thickness of 370mm or more, intermediate base with a thickness of 75mm after roughing.
5. the manufacturing method of the economical HIC resistance pipeline steel plate X52MS of TMCP delivery according to claim 3, feature It is: 8-10 DEG C of cooling velocity/s in step 4.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110306103A (en) * 2019-07-30 2019-10-08 马鞍山钢铁股份有限公司 A kind of 555MPa grades of anti-H2S corrodes oil pipe steel band and preparation method thereof
CN111270137A (en) * 2020-02-17 2020-06-12 本钢板材股份有限公司 Acid corrosion resistant pipeline steel X52MS hot-rolled coil and preparation method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186994A (en) * 2007-10-15 2008-05-28 莱芜钢铁集团有限公司 Micro-alloying steel for oil gas transport seamless pipeline and its preparation method
CN101864535A (en) * 2009-04-15 2010-10-20 中国科学院金属研究所 Large deformation resistant pipeline steel and production technology thereof
JP2013006207A (en) * 2011-06-27 2013-01-10 Jfe Steel Corp Method for manufacturing high-strength thick electric resistance welded steel pipe excellent in sour resistant property of electric resistance welded part
JP2013250113A (en) * 2012-05-31 2013-12-12 Jfe Steel Corp Determination method for hic resistance performance of steel material
CN104099522A (en) * 2014-07-16 2014-10-15 首钢总公司 Non-copper and nickel acid resistant pipeline steel X52MS and production method of hot-rolled plate coil thereof
CN104404378A (en) * 2014-12-19 2015-03-11 山东钢铁股份有限公司 Wide and thick steel plate for hot-bent elbow pipes at X65-X80 levels and manufacturing method of wide and thick steel plate
CN104942469A (en) * 2015-07-01 2015-09-30 宝鸡石油钢管有限责任公司 Welding wire suitable for welding low-strength H2S-corrosion-resistant pipeline steel in submerged arc mode
CN107502821A (en) * 2017-08-29 2017-12-22 江阴兴澄特种钢铁有限公司 The economical X 70 pipeline steel plate and its manufacture method used under a kind of special think gauge ultra-low temperature surroundings
CN107988547A (en) * 2016-10-27 2018-05-04 鞍钢股份有限公司 X52MS hot-rolled coil for high-frequency resistance welded pipe and manufacturing method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186994A (en) * 2007-10-15 2008-05-28 莱芜钢铁集团有限公司 Micro-alloying steel for oil gas transport seamless pipeline and its preparation method
CN101864535A (en) * 2009-04-15 2010-10-20 中国科学院金属研究所 Large deformation resistant pipeline steel and production technology thereof
JP2013006207A (en) * 2011-06-27 2013-01-10 Jfe Steel Corp Method for manufacturing high-strength thick electric resistance welded steel pipe excellent in sour resistant property of electric resistance welded part
JP2013250113A (en) * 2012-05-31 2013-12-12 Jfe Steel Corp Determination method for hic resistance performance of steel material
CN104099522A (en) * 2014-07-16 2014-10-15 首钢总公司 Non-copper and nickel acid resistant pipeline steel X52MS and production method of hot-rolled plate coil thereof
CN104404378A (en) * 2014-12-19 2015-03-11 山东钢铁股份有限公司 Wide and thick steel plate for hot-bent elbow pipes at X65-X80 levels and manufacturing method of wide and thick steel plate
CN104942469A (en) * 2015-07-01 2015-09-30 宝鸡石油钢管有限责任公司 Welding wire suitable for welding low-strength H2S-corrosion-resistant pipeline steel in submerged arc mode
CN107988547A (en) * 2016-10-27 2018-05-04 鞍钢股份有限公司 X52MS hot-rolled coil for high-frequency resistance welded pipe and manufacturing method thereof
CN107502821A (en) * 2017-08-29 2017-12-22 江阴兴澄特种钢铁有限公司 The economical X 70 pipeline steel plate and its manufacture method used under a kind of special think gauge ultra-low temperature surroundings

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
葛新建等: "抗HIC X65管线钢带的开发", 《山东冶金》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110306103A (en) * 2019-07-30 2019-10-08 马鞍山钢铁股份有限公司 A kind of 555MPa grades of anti-H2S corrodes oil pipe steel band and preparation method thereof
CN111270137A (en) * 2020-02-17 2020-06-12 本钢板材股份有限公司 Acid corrosion resistant pipeline steel X52MS hot-rolled coil and preparation method thereof

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