CN105039866A - 1400 MPa super-high strength alloy steel and manufacturing method thereof - Google Patents
1400 MPa super-high strength alloy steel and manufacturing method thereof Download PDFInfo
- Publication number
- CN105039866A CN105039866A CN201510584303.7A CN201510584303A CN105039866A CN 105039866 A CN105039866 A CN 105039866A CN 201510584303 A CN201510584303 A CN 201510584303A CN 105039866 A CN105039866 A CN 105039866A
- Authority
- CN
- China
- Prior art keywords
- alloy steel
- surpasses
- strength alloy
- strength
- 1400mpa
- 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.)
- Pending
Links
- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000005096 rolling process Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000010791 quenching Methods 0.000 claims abstract description 13
- 238000003723 Smelting Methods 0.000 claims abstract description 11
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 238000005496 tempering Methods 0.000 claims description 21
- 238000002791 soaking Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 6
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 abstract description 6
- 230000005415 magnetization Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005275 alloying Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910000521 B alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
The invention belongs to the technical field of smelting and particularly relates to 1400 MPa super-high strength alloy steel and a manufacturing method thereof. The 1400 MPa super-high strength alloy steel is characterized by comprising 0.18-0.25% of C, 0.40-0.65% of Si, 1.10-1.40% of Mn, not greater than 0.009% of P, not greater than 0.002% of S, 0.30-0.80% of Cr, 0.20-0.60% of Ni, 0.20-0.60% of Mo, 0.008-0.0025% of B, 0.020-0.035% of Ti and balance Fe and inevitable impurities. The 6-60 mm super-high strength alloy steel plates produced through the method is great in strength and toughness matching and good in impact toughness at the low temperature of -40 DEG C. By controlling rolling, quenching and temper heat treatment, the metallographic phase mainly is tempered martensite organizations, the strength of extension is higher than 1400 Mpa, the yield strength is higher than 1170 Mpa, the transverse low temperature ballistic work at -40 DEG C is larger than 50 J, the surface brinell hardness is larger than 430 HBW, and the surface residual magnetization is less than 15 GS.
Description
Technical field
The invention belongs to technical field of smelting, be specifically related to a kind of 1400MPa level and surpass high-strength alloy steel and manufacture method thereof.
Background technology
In recent years, the manufacture of many large-scale defence engineering equipments gets more and more to the use of the strong alloy steel plate of 1400MPa level superelevation, the past great majority Q960 level steel plate meeting GB/T16270, its yield strength is greater than 960MPa, tensile strength is interval at 980-1150MPa, intensity can not meet superstrength requirement far away, and requires that steel plate has lower surface remanence and high-wearing feature in manufacture and use procedure.Therefore in the urgent need to developing the strong alloy steel plate of 1400MPa level superelevation of better, the easy welding of high and low temperature impelling strength of a kind of intensity, low residual induction, high rigidity.
CN102286687A discloses " manufacture method of high-strength plate Q960 produced by a kind of Steckel mill ", it is characterized in that the method comprises the following steps:
1) in smelting technology, adopt converter steelmaking, push up the dark decarburization of low top-bottom blowing; RH vacuum-treat is adopted to enter
One step decarburization, and carry out microalloying, obtain satisfactory steel billet; The chemical component weight per-cent of steel billet is: C
0.12 ~ 0.20%, Mn0.80 ~ 1.60%, Si0.02 ~ 0.40, P≤0.015, S≤0.005, B0.001 ~ 0.003, and add
Add appropriate Cr, Mo, V, Ni alloying element, and meet carbon equivalent Ceq=+Mn/6+Cr/5+Mo/4+V/14+Ni/40+Si/24≤0.60;
2) in rolling technology, Steckel mill is adopted to carry out controlled rolling, to roll front billet heating temperature be 1150 ~
1250 DEG C, reduction per pass is 10 ~ 25%, and pressure temperature is 900 ~ 1200 DEG C, and coiler furnace temperature is < 1000 DEG C.
The high-strength plate Q960 that above-mentioned method is produced, its yield strength is at more than 960Mpa, the requirement of more high strength can not be met, therefore, need to improve existing steel plate rolling technique, produce the strong alloy steel plate of 1400MPa level superelevation of better, the easy welding of high and low temperature impelling strength of a kind of intensity, low residual induction, high rigidity.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention adopts hot metal pretreatment, vacuum deaeration refining, controlled rolling technology, the strong alloy steel plate of Q-tempering manufacture technics 6-60mm specification 1400MPa level superelevation, meets the requirement of defence equipment manufacture to the strong low magnetic-type steel alloy of superelevation.
The present invention is directed to China's national defense equipment ultra-high strength steel plate technical market demand, improve low level steel Q960 intensity and wear resistance skill target deficiency, adopt low P, S, Mo, Cr, Ni, B alloy designs, utilize converter to smelt fast, through LF external refining and the degassed refining of RH, improve Molten Steel Cleanliness, a kind of method improving armor plate strength, low-temperature impact toughness through controlled rolling, Quench and temper technology is provided, obtains tempered martensite metallographic structure.
Main component of the present invention: C:0.18-0.25%; Si:0.40-0.65%; Mn:1.10-1.40%; P≤0.009%; S≤0.002%; Cr:0.30-0.80%; Ni:0.20-0.60%; Mo:0.20-0.60%; B:0.0008-0.0025%; Ti:0.020-0.035%; All the other are Fe and inevitable impurity.
In above-mentioned composition, its Cr+Ni+Mo total content >=0.70%.
Processing step of the present invention comprises:
KR hot metal pretreatment; Converter smelting; LF external refining; RH vacuum outgas; Heating of plate blank; Roughing; Finish rolling; Q-tempering.
Be specially following step:
KR hot metal pretreatment → converter smelting → deoxidation alloying → CAS → LF refining → RH → CCM → cutting scale inspection → casting blank stacking slow cooling 48 hours → strand heating → high-pressure water descaling → roughing → finish rolling → aligning → ball blast → quenching → tempering → aligning → cutting, sampling → inspection → finished product.
Step is as follows more specifically:
(1) KR hot metal pretreatment: S content controls lower than 0.002%;
(2) converter smelting: BOF oxygen argon gas top and bottom complex blowing takes off C, adopts the pushing off the slag of hydraulic pressure slide plate;
(3) LF external refining: heat-up time 15-18 minute;
(4) RH vacuum outgas: process 20 minutes, argon gas soft blow 10-12 minute after line feeding under being less than 200Pa vacuum tightness;
(5) heating of plate blank: soaking temperature range 1180-1200 DEG C, soaking time scope 3.8-4.0 hour;
(6) roughing: start rolling temperature 1020-1050 DEG C;
(7) finish rolling: start rolling temperature scope 980-1000 DEG C, finishing temperature scope 840-850 DEG C, high pressure water sprays 1-3 time, thinning scale on surface;
(8) quench: Heating temperature 890-910 DEG C, cooling by water velocity range 20-35 DEG C/s.Form the sub-alloy of high-density, obtain the martensitic microstructure of fine uniform;
(9) tempering: 200-280 DEG C of tempering 180-200 minute.
Compared with the Q960 production method in background technology, adopt the present invention to produce the strong alloy steel plate of 6-60mm superelevation, reach excellent obdurability coupling ,-40 DEG C of low-temperature impact toughness are excellent.By controlled rolling, quenching and tempering thermal treatment, metallographic is mainly tempered martensite, tensile strength > 1400MPa, yield strength > 1170MPa,-40 DEG C of horizontal low-temperature impact work > 50J, surface Brinell hardness > 430HBW, surface remanence < 15GS.Its intensity of steel plate of the present invention better, the easy welding of high and low temperature impelling strength, low residual induction, 1400Mpa grade super strength can be reached.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described, so that those skilled in the art more understands the present invention, but does not therefore limit the present invention.
Embodiment 1
Slab melting composition is:
C:0.18%; Si:0.45%; Mn:1.30%; P:0.008%; S:0.002%; Cr:0.55%; Ni:0.45%; Mo:0.25%; B:0.0012%; Ti:0.023%, Cr+Ni+Mo:1.25%, all the other are Fe and inevitable impurity.
Slab soaking temperature (DEG C): 1180; Soaking time (hour): 3.9; Roughing temperature (DEG C): 1030; Finish rolling start rolling temperature (DEG C): 980; Finish rolling finishing temperature (DEG C): 840; High pressure water sprays number of times (secondary): 3; Quenching temperature (DEG C): 900; Speed of cooling (DEG C/s): 32; Tempering temperature (DEG C): 255, tempering time (minute): 185;
Its detailed step is as follows:
(1) KR hot metal pretreatment: S content controls lower than 0.002%;
(2) converter smelting: BOF oxygen argon gas top and bottom complex blowing takes off C, adopts the pushing off the slag of hydraulic pressure slide plate;
(3) LF external refining: about 16 minutes heat-up time;
(4) RH vacuum outgas: process 20 minutes, argon gas soft blow about 10 minutes after line feeding under being less than 200Pa vacuum tightness;
(5) heating of plate blank: soaking temperature range 1180 DEG C, soaking time scope 3.9 hours;
(6) roughing: start rolling temperature 1030 DEG C;
(7) finish rolling: start rolling temperature scope 980 DEG C, finishing temperature scope 840 DEG C, high pressure water sprays 3 times, thinning scale on surface;
(8) quench: Heating temperature 900 DEG C, cooling by water velocity range 32 DEG C/s.Form the sub-alloy of high-density, obtain the martensitic microstructure of fine uniform;
(9) tempering: 255 DEG C of tempering 185 minutes.
Plate property:
Specification: steel plate thickness 6mm; Yield strength (MPa): 1180; Tensile strength (MPa): 1490; Elongation after fracture (%): 17; V-type transverse impact merit (-40 DEG C): 55J, 58J, 60J(specimen size 5 × 10 × 55mm); Surface Brinell hardness (HBW): 450; Surface of steel plate remanent magnetism (GS): 12;
Embodiment 2
Slab melting composition is:
C:0.20%, Si:0.48%, Mn:1.35%, P:0.005%, S:0.001%, Cr:0.60%; Ni:0.30%; Mo:0.30%; B:0.0018%; Ti:0.030%, Cr+Ni+Mo:1.20%, all the other are Fe and inevitable impurity.
Slab soaking temperature (DEG C): 1200; Soaking time (hour): 4.0; Roughing temperature (DEG C): 1050; Finish rolling start rolling temperature (DEG C): 1000; Finish rolling finishing temperature (DEG C): 850; High pressure water sprays number of times (secondary): 2; Quenching temperature (DEG C): 895; Speed of cooling (DEG C/s): 35; Tempering temperature (DEG C): 280, tempering time (minute): 200
Concrete step is as follows:
(1) KR hot metal pretreatment: S content controls lower than 0.002%;
(2) converter smelting: BOF oxygen argon gas top and bottom complex blowing takes off C, adopts the pushing off the slag of hydraulic pressure slide plate;
(3) LF external refining: about 15 minutes heat-up time;
(4) RH vacuum outgas: process 20 minutes, argon gas soft blow about 12 minutes after line feeding under being less than 200Pa vacuum tightness;
(5) heating of plate blank: soaking temperature range 1200 DEG C, soaking time scope 4.0 hours;
(6) roughing: start rolling temperature 1050 DEG C;
(7) finish rolling: start rolling temperature scope 1000 DEG C, finishing temperature scope 850 DEG C, high pressure water sprays 2 times, thinning scale on surface;
(8) quench: Heating temperature 895 DEG C, cooling by water velocity range 35 DEG C/s, forms the sub-alloy of high-density, obtains the martensitic microstructure of fine uniform;
(9) tempering: 280 DEG C of tempering 200 minutes.
Plate property:
Specification: steel plate thickness 30mm; Yield strength (MPa): 1200; Tensile strength (MPa): 1512; Elongation after fracture (%): 15; V-type transverse impact merit (-40 DEG C): 102J, 115J, 108J(specimen size 10 × 10 × 55mm); Surface Brinell hardness (HBW): 462; Surface of steel plate remanent magnetism (GS): 8.
Embodiment 3
Slab melting composition is:
C:0.19%, Si:0.50%, Mn:1.40%, P:0.007%, S:0.001%, Cr:0.55%; Ni:0.45%; Mo:0.29%; B:0.0015%; Ti:0.022%, Cr+Ni+Mo:1.29%, all the other are Fe and inevitable impurity.
Slab soaking temperature (DEG C): 1190; Soaking time (hour): 3.9; Roughing temperature (DEG C): 1035; Finish rolling start rolling temperature (DEG C): 995; Finish rolling finishing temperature (DEG C): 843; High pressure water sprays number of times (secondary): 3; Quenching temperature (DEG C): 896; Speed of cooling (DEG C/s): 33; Tempering temperature (DEG C): 260, tempering time (minute): 190;
Concrete step is as follows:
(1) KR hot metal pretreatment: S content controls lower than 0.002%;
(2) converter smelting: BOF oxygen argon gas top and bottom complex blowing takes off C, adopts the pushing off the slag of hydraulic pressure slide plate;
(3) LF external refining: about 18 minutes heat-up time;
(4) RH vacuum outgas: process 20 minutes, argon gas soft blow 11 minutes after line feeding under being less than 200Pa vacuum tightness;
(5) heating of plate blank: soaking temperature range 1190 DEG C, soaking time scope 3.9 hours;
(6) roughing: start rolling temperature 1035 DEG C;
(7) finish rolling: start rolling temperature scope 995 DEG C, finishing temperature scope 843 DEG C, high pressure water sprays 3 times, thinning scale on surface;
(8) quench: Heating temperature 896 DEG C, cooling by water velocity range 33 DEG C/s, forms the sub-alloy of high-density, obtains the martensitic microstructure of fine uniform;
(9) tempering: 260 DEG C of tempering 190 minutes.
Plate property:
Specification: steel plate thickness 60mm; Yield strength (MPa): 1220; Tensile strength (MPa): 1550; Elongation after fracture (%): 18; V-type transverse impact merit (-40 DEG C): 121J, 106J, 116J(specimen size 10 × 10 × 55mm); Surface Brinell hardness (HBW): 445; Surface of steel plate remanent magnetism (GS): 10.
Claims (8)
1. 1400MPa level surpasses a high-strength alloy steel, it is characterized in that, the composition of described steel alloy is as follows:
C:0.18-0.25%; Si:0.40-0.65%; Mn:1.10-1.40%; P≤0.009%; S≤0.002%; Cr:0.30-0.80%; Ni:0.20-0.60%; Mo:0.20-0.60%; B:0.0008-0.0025%; Ti:0.020-0.035%; All the other are Fe and inevitable impurity.
2. a kind of 1400MPa level as claimed in claim 1 surpasses high-strength alloy steel, it is characterized in that,
In described steel alloy, Cr+Ni+Mo total content >=0.70%.
3. a kind of 1400MPa level as claimed in claim 2 surpasses the manufacture method of high-strength alloy steel, and its processing step comprises:
KR hot metal pretreatment; Converter smelting; LF external refining; RH vacuum outgas; Heating of plate blank; Roughing; Finish rolling; Q-tempering.
4. a kind of 1400MPa level as claimed in claim 3 surpasses the manufacture method of high-strength alloy steel, and its processing step comprises:
(1) KR hot metal pretreatment: S content controls lower than 0.002%;
(2) converter smelting: BOF oxygen argon gas top and bottom complex blowing takes off C, adopts the pushing off the slag of hydraulic pressure slide plate;
(3) LF external refining: heat-up time 15-20 minute;
(4) RH vacuum outgas: process 20 minutes, argon gas soft blow 10-12 minute after line feeding under being less than 200Pa vacuum tightness;
(5) heating of plate blank: soaking temperature range 1180-1200 DEG C, soaking time scope 3.8-4.0 hour;
(6) roughing: start rolling temperature 1020-1050 DEG C;
(7) finish rolling: start rolling temperature scope 980-1000 DEG C, finishing temperature scope 840-850 DEG C, high pressure water sprays 1-3 time, thinning scale on surface;
(8) quench: Heating temperature 890-910 DEG C, cooling by water velocity range 20-35 DEG C/s, form the sub-alloy of high-density, obtain the martensitic microstructure of fine uniform;
(9) tempering: 200-280 DEG C of tempering 180-200 minute.
5. a kind of 1400MPa level as claimed in claim 3 surpasses the manufacture method of high-strength alloy steel, it is characterized in that, in described step (3), LF external refining: heat-up time 15-18 minute.
6. a kind of 1400MPa level as claimed in claim 3 surpasses the manufacture method of high-strength alloy steel, it is characterized in that, in described step (8), and quench cooling rate 30-35 DEG C/s.
7. a kind of 1400MPa level as claimed in claim 3 surpasses the manufacture method of high-strength alloy steel, it is characterized in that, in described step (7), finish rolling: start rolling temperature scope 990 DEG C, finishing temperature scope 845 DEG C, high pressure water sprays 2 times, thinning scale on surface.
8. a kind of 1400MPa level as claimed in claim 3 surpasses the manufacture method of high-strength alloy steel, it is characterized in that, described steel plate tensile strength > 1400MPa, yield strength > 1170MPa,-40 DEG C of horizontal low-temperature impact work > 50J, surface Brinell hardness > 430HBW, surface remanence < 15GS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510584303.7A CN105039866A (en) | 2015-09-15 | 2015-09-15 | 1400 MPa super-high strength alloy steel and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510584303.7A CN105039866A (en) | 2015-09-15 | 2015-09-15 | 1400 MPa super-high strength alloy steel and manufacturing method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105039866A true CN105039866A (en) | 2015-11-11 |
Family
ID=54446831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510584303.7A Pending CN105039866A (en) | 2015-09-15 | 2015-09-15 | 1400 MPa super-high strength alloy steel and manufacturing method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105039866A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105648329A (en) * | 2016-03-09 | 2016-06-08 | 山东钢铁股份有限公司 | Control rolling and high strength ship-plate steel and producing method thereof |
CN105861928A (en) * | 2016-06-17 | 2016-08-17 | 山东钢铁股份有限公司 | 4-8mm thick HB450 grade wear-resistant steel plate used for engineering machinery and manufacturing method thereof |
CN106756495A (en) * | 2016-12-19 | 2017-05-31 | 山东钢铁股份有限公司 | A kind of 1760MPa superelevation strong anti-bullet steel and its manufacture method |
CN107937803A (en) * | 2017-11-01 | 2018-04-20 | 山东钢铁股份有限公司 | One kind has low-temperature impact toughness wear-resisting steel plate and preparation method thereof |
CN112126848A (en) * | 2020-08-20 | 2020-12-25 | 舞阳钢铁有限责任公司 | High-toughness quenched and tempered Q960 steel plate and production method thereof |
CN112680665A (en) * | 2020-12-17 | 2021-04-20 | 安阳钢铁股份有限公司 | High-toughness 1300MPa ultrahigh-strength steel and manufacturing method thereof |
CN113308648A (en) * | 2021-05-14 | 2021-08-27 | 唐山钢铁集团高强汽车板有限公司 | Cold-rolled martensite steel substrate and production method thereof |
CN114606434A (en) * | 2022-01-26 | 2022-06-10 | 南京钢铁股份有限公司 | Low-carbon equivalent high-toughness wear-resistant steel plate and manufacturing method thereof |
CN114892089A (en) * | 2022-05-21 | 2022-08-12 | 湖南华菱湘潭钢铁有限公司 | Method for improving hardness uniformity of wear-resistant steel section |
CN114941068A (en) * | 2022-03-28 | 2022-08-26 | 包头钢铁(集团)有限责任公司 | Preparation method of rare earth microalloyed high-toughness 960 MPa-grade ultrahigh-strength steel |
CN116219279A (en) * | 2022-12-23 | 2023-06-06 | 鞍钢股份有限公司 | High-strength high-toughness steel for nuclear reactor containment vessel and manufacturing method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101638755A (en) * | 2009-08-21 | 2010-02-03 | 东北大学 | High-toughness and ultrahigh-strength wear-resistant steel plate and production method thereof |
JP2010138421A (en) * | 2008-12-09 | 2010-06-24 | Jfe Steel Corp | Thick steel plate with low yield ratio and high strength, and method for manufacturing the same |
CN102747303A (en) * | 2012-06-29 | 2012-10-24 | 宝山钢铁股份有限公司 | High-strength steel sheet with yield strength of 1100MPa and manufacturing method thereof |
CN104513936A (en) * | 2014-12-19 | 2015-04-15 | 宝山钢铁股份有限公司 | Hardened and tempered high-strength steel with yield strength of 1100MPa and production method thereof |
-
2015
- 2015-09-15 CN CN201510584303.7A patent/CN105039866A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010138421A (en) * | 2008-12-09 | 2010-06-24 | Jfe Steel Corp | Thick steel plate with low yield ratio and high strength, and method for manufacturing the same |
CN101638755A (en) * | 2009-08-21 | 2010-02-03 | 东北大学 | High-toughness and ultrahigh-strength wear-resistant steel plate and production method thereof |
CN102747303A (en) * | 2012-06-29 | 2012-10-24 | 宝山钢铁股份有限公司 | High-strength steel sheet with yield strength of 1100MPa and manufacturing method thereof |
CN104513936A (en) * | 2014-12-19 | 2015-04-15 | 宝山钢铁股份有限公司 | Hardened and tempered high-strength steel with yield strength of 1100MPa and production method thereof |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105648329A (en) * | 2016-03-09 | 2016-06-08 | 山东钢铁股份有限公司 | Control rolling and high strength ship-plate steel and producing method thereof |
CN105861928A (en) * | 2016-06-17 | 2016-08-17 | 山东钢铁股份有限公司 | 4-8mm thick HB450 grade wear-resistant steel plate used for engineering machinery and manufacturing method thereof |
CN106756495A (en) * | 2016-12-19 | 2017-05-31 | 山东钢铁股份有限公司 | A kind of 1760MPa superelevation strong anti-bullet steel and its manufacture method |
CN107937803A (en) * | 2017-11-01 | 2018-04-20 | 山东钢铁股份有限公司 | One kind has low-temperature impact toughness wear-resisting steel plate and preparation method thereof |
CN112126848A (en) * | 2020-08-20 | 2020-12-25 | 舞阳钢铁有限责任公司 | High-toughness quenched and tempered Q960 steel plate and production method thereof |
CN112680665A (en) * | 2020-12-17 | 2021-04-20 | 安阳钢铁股份有限公司 | High-toughness 1300MPa ultrahigh-strength steel and manufacturing method thereof |
CN113308648A (en) * | 2021-05-14 | 2021-08-27 | 唐山钢铁集团高强汽车板有限公司 | Cold-rolled martensite steel substrate and production method thereof |
CN113308648B (en) * | 2021-05-14 | 2022-11-15 | 唐山钢铁集团高强汽车板有限公司 | Cold-rolled martensite steel substrate and production method thereof |
CN114606434A (en) * | 2022-01-26 | 2022-06-10 | 南京钢铁股份有限公司 | Low-carbon equivalent high-toughness wear-resistant steel plate and manufacturing method thereof |
CN114941068A (en) * | 2022-03-28 | 2022-08-26 | 包头钢铁(集团)有限责任公司 | Preparation method of rare earth microalloyed high-toughness 960 MPa-grade ultrahigh-strength steel |
CN114941068B (en) * | 2022-03-28 | 2024-01-30 | 包头钢铁(集团)有限责任公司 | Preparation method of rare earth microalloyed high-toughness 960 MPa-level ultrahigh-strength steel |
CN114892089A (en) * | 2022-05-21 | 2022-08-12 | 湖南华菱湘潭钢铁有限公司 | Method for improving hardness uniformity of wear-resistant steel section |
CN114892089B (en) * | 2022-05-21 | 2023-09-05 | 湖南华菱湘潭钢铁有限公司 | Method for improving hardness uniformity of wear-resistant steel section |
CN116219279A (en) * | 2022-12-23 | 2023-06-06 | 鞍钢股份有限公司 | High-strength high-toughness steel for nuclear reactor containment vessel and manufacturing method thereof |
CN116219279B (en) * | 2022-12-23 | 2024-04-16 | 鞍钢股份有限公司 | A high-strength and high-toughness steel for nuclear reactor containment and a manufacturing method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105039866A (en) | 1400 MPa super-high strength alloy steel and manufacturing method thereof | |
AU2020322810B2 (en) | A wear-resistant steel with excellent surface quality and a production method | |
CN101440461B (en) | A kind of oil well gas corrosion-resistant sucker rod steel and its manufacturing method | |
CN103602888B (en) | Manufacturing method for low-compression ratio hot-rolled 9Ni steel thick plate | |
CN101451212B (en) | High intensity steel plate and preparation method thereof | |
CN110184532B (en) | Wear-resistant steel plate with excellent-60 ℃ ultralow-temperature impact toughness and production method thereof | |
CN113846260A (en) | Production method of high-strength steel plate for engineering machinery | |
CN107937803B (en) | One kind having low-temperature impact toughness wear-resisting steel plate and preparation method thereof | |
CN105154784B (en) | A kind of high phosphorus weather-proof structural steel plate and preparation method thereof | |
CN106756495A (en) | A kind of 1760MPa superelevation strong anti-bullet steel and its manufacture method | |
CN106811700B (en) | Thick acid-resistant X60MS hot-rolled coil and manufacturing method thereof | |
AU2020467306A9 (en) | Thick low-carbon-equivalent high-toughness wear-resistant steel plate and manufacturing method therefor | |
CN101768698A (en) | Low cost yield strength 700MPA level non-tempering processing high strength steel plate and manufacturing method thereof | |
CN105385951A (en) | NM500 abrasion resisting steel plate with high hardness and high tenacity and production method for NM500 abrasion resisting steel plate | |
CN106636911B (en) | With the 900MPa grade hot rolled steel sheets and its manufacturing method of sheet billet Direct Rolling | |
CN105112782A (en) | Low-temperature ferrite LT-FH40 steel plate applied to hot-rolled ships and production method thereof | |
CN102080190A (en) | Hardening and tempering steel plate for engineering machinery with 7000MPa grade yield strength and preparation method thereof | |
CN107099729A (en) | The ultrafast cold technique productions Thin Specs abrasion-resistant stee NM450 of hot continuous rolling method | |
CN104762559A (en) | Method for producing steel plate for hydrogen-contacting equipment | |
CN107299279A (en) | A kind of 100mm thickness 410HB grade wear-resisting steel plates and preparation method thereof | |
CN111394652A (en) | Rare earth armor steel and manufacturing method thereof | |
CN111235464A (en) | Titanium microalloyed economical high-strength weathering steel and production method thereof | |
CN115094298A (en) | Production method of 600 MPa-grade low-carbon equivalent hydroelectric steel | |
CN106676418B (en) | The atmosphere corrosion resistance structural steel molten steel of nitrogen containing niobium and atmosphere corrosion resistance structural steel and its production method | |
CN114086051B (en) | High-strength high-toughness easily-welded nano steel with thickness of 60-120 mm and thickness of 850MPa and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |