CN109881091A - A kind of high-strength weathering steel strip and its production method - Google Patents

A kind of high-strength weathering steel strip and its production method Download PDF

Info

Publication number
CN109881091A
CN109881091A CN201910130666.1A CN201910130666A CN109881091A CN 109881091 A CN109881091 A CN 109881091A CN 201910130666 A CN201910130666 A CN 201910130666A CN 109881091 A CN109881091 A CN 109881091A
Authority
CN
China
Prior art keywords
strip
production
steel
weathering steel
strength weathering
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.)
Granted
Application number
CN201910130666.1A
Other languages
Chinese (zh)
Other versions
CN109881091B (en
Inventor
陈爱华
李化龙
刘新院
刘俭
施一新
马毅
刘玉君
吴荣洲
史华跃
郭海荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjiagang Sino-Us Ultra-Thin Strip Technology Co Ltd
Jiangsu Shagang Group Co Ltd
Jiangsu Shagang Iron and Steel Research Institute Co Ltd
Original Assignee
Zhangjiagang Sino-Us Ultra-Thin Strip Technology Co Ltd
Jiangsu Shagang Group Co Ltd
Jiangsu Shagang Iron and Steel Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhangjiagang Sino-Us Ultra-Thin Strip Technology Co Ltd, Jiangsu Shagang Group Co Ltd, Jiangsu Shagang Iron and Steel Research Institute Co Ltd filed Critical Zhangjiagang Sino-Us Ultra-Thin Strip Technology Co Ltd
Priority to CN201910130666.1A priority Critical patent/CN109881091B/en
Publication of CN109881091A publication Critical patent/CN109881091A/en
Application granted granted Critical
Publication of CN109881091B publication Critical patent/CN109881091B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20Ferrous alloys, e.g. steel alloys containing chromium with copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese

Abstract

The present invention relates to a kind of high-strength weathering steel strip and its production methods.This method comprises the following steps: smelting, the ingredient and weight percent which contains are respectively as follows: C≤0.03, Si 0.10-0.40, Mn 1.50-2.00, P≤0.015, S≤0.003, Cr≤0.50, Cu 0.20-1.00, Nb 0.05-0.50, remaining is iron and inevitable impurity;Thin strap continuous casting will smelt qualified molten steel by the casting roll of a pair of of opposite direction rotating and be casting continuously to form the Cast Strip with a thickness of 1.4-2.5mm, and molten steel overheat is controlled at 100 DEG C or less;The online hot rolling in Cast Strip, 1 passage hot rolling drafts are 15-65%, and strip enters the temperature before milling train at 950 DEG C or more;It cools down and batches, hot-strip is cooled to 450-650 DEG C by aerosol, obtains acicular ferrite and a small amount of pearlitic structrure, then passes through coiling machine and batch in rolls.High-strength weathering steel strip of the invention has the advantages such as production procedure is short, production cost is low, welding is easy, belt plate shape is good, intensity is high, can be widely applied to the fields such as bridge, building, container, railcar.

Description

A kind of high-strength weathering steel strip and its production method
Technical field
The invention belongs to manufacture field of low alloy steel, more particularly to a kind of low cost, short route, easily welding, high intensity Weathering steel strip and its production method, can be applied to container, building, bridge and railcar etc. manufacture in.
Background technique
Weathering steel, also referred to as weather resisting steel, the alloying elements such as Chang Tianjia Cu, P, Cr, Ni, Mo, improve the resistance to of steel grade Atmospheric corrosion performance, so that its corrosion resistance for having had compared with straight carbon steel, with stainless steel than with low manufacturing cost. With the extensive use of weathering steel, higher requirements are also raised for intensity of the fields such as container, bridge, building to weathering steel, And 09CuPCrNi can only guarantee the intensity of 345MPa.In addition, plate shape is difficult since traditional hot continuous rolling is when thin slab product produces In control, producing thin gauge high-strength weathering steel has a very big difficulty, and production efficiency in the extreme under.Although in recent years There is the example using CSP continuous casting and rolling technique of sheet bar production thin gauge weathering steel, but it also has production cost higher, The relatively long disadvantage of production procedure.
Patent document CN101824581B discloses a kind of yield strength 450MPa grade high-strength weathering steel plate and its producer Method is produced using converter-CSP production technology, and using the method for Nb microalloying and controlled rolling and controlled cooling, high-strength to obtain The purpose of degree, Cr and Ni content is higher, and cost of alloy and production cost are higher.Patent document CN108103398A discloses one Kind 460MPa grade high-strength high durable steel plate and its production method are improved resistance to by a variety of microalloy elements such as addition Nb, Ti, B The intensity of steel is waited, while using pneumatic steelmaking, LF refining, sheet billet continuous casting, slab slow cooling, heating of plate blank, high-pressure water descaling, roughing The multi-pass processes such as rolling, finish rolling rolling, On-line Control cooling, production procedure is long and cumbersome, and steel plate thickness produced is thicker, Production cost and production efficiency are low.Patent document CN108570601A discloses a kind of low-carbon bainite weathering steel and its production Method improves the intensity of weathering steel by microalloy elements such as addition Mo and Ti, and controlling its microstructure is 95% or more Without austenite a small amount of on carbon bainite and crystal boundary and Cu-Ni Age-prrcipitation Phase, production technology is extremely complex, production difficulty compared with Greatly.Patent document CN109023048A discloses a kind of 460MPa level high-strength quake-proof fire-resistant and weather-resistant steel hot-rolled coil and its producer The production of weathering steel thin slab product is not implemented with a thickness of 6-16mm in method, the weather-proof strip of production.And in above patent document Weathering steel C content it is higher, belong to peritectic steel, in sheet billet continuous casting, since peritectic reaction occurs when molten steel solidification, be easy Steel slab surface cracks, and causes final steel plate cracked, influences plate surface quality, when rolling thin slab product, Such defect increases the production difficulty of weathering steel strip.Therefore, research and develop a kind of high-intensitive, inexpensive, easy to produce, high quality, The weather-proof steel product of thin gauge is the urgent need of vast application field.
Summary of the invention
For existing high-strength weathering steel strip production procedure is long, production difficulty is big, surface quality is poor, cost of alloy High, the problems such as production efficiency is low, welding performance is poor, the present invention provides a kind of novel high-strength weathering steel strips and its production Production procedure has been greatly shortened using sheet-band continuous casting and rolling technique in method, reduces production cost;It is mentioned using rapid cooling High band hardness of steel, has saved cost of alloy;And the design of C content is controlled, improve the welding performance of weathering steel and the company of avoiding The generation for casting crackle improves strip surface quality and welding performance, the surface quality for improving weathering steel.
To achieve the goals above, on the one hand, the invention also discloses a kind of production method of high-strength weathering steel strip, It follows the steps below:
1) it smelts
Ladle chemistry are as follows: C :≤0.03wt%, Si:0.10-0.40wt%, Mn:1.50-2.00wt%, P :≤ 0.015wt%, S :≤0.003wt%, Cr :≤0.50wt%, Cu:0.20-1.00wt%, Nb:0.05-0.50wt%, remaining For iron and inevitable impurity;
2) thin strap continuous casting
Qualified molten steel will be smelted and be casting continuously to form Cast Strip by the casting roll of a pair of of opposite direction rotating;
3) the online hot rolling in Cast Strip
Cast Strip is by 1 passage hot rolling at Thin Strip Steel;
4) it cools down and batches
Thin Strip Steel after hot rolling is cooling by aerosol, and batches in rolls through coiling machine.
The production method of a kind of high-strength weathering steel strip according to the present invention, it is preferable that Cast Strip is with a thickness of 1.4- 2.5mm。
A kind of production method of high-strength weathering steel strip according to the present invention, it is preferable that degree of superheat when molten steel continuous casting Control is at 100 DEG C or less.
The production method of a kind of high-strength weathering steel strip according to the present invention, it is preferable that 1 passage of hot-rolling mill is passed through in Cast Strip The drafts of hot rolling is 15-65%.
The production method of a kind of high-strength weathering steel strip according to the present invention, it is preferable that Cast Strip forms heat by hot rolling Rolling thin strip steel with a thickness of 0.7-2.0mm.
The production method of a kind of high-strength weathering steel strip according to the present invention, it is preferable that Cast Strip enters the temperature of hot-rolling mill Degree is at 950 DEG C or more.
The production method of a kind of high-strength weathering steel strip according to the present invention, it is preferable that the Thin Strip Steel after hot rolling passes through Aerosol is cooled to 450-650 DEG C.
A kind of production method of high-strength weathering steel strip according to the present invention, it is preferable that hot rolling thin strip after cooling Tissue be acicular ferrite and a small amount of pearlite.
The production method of a kind of high-strength weathering steel strip according to the present invention, it is preferable that the surrender of hot rolling thin strip is strong Degree is in 450MPa or more.
To achieve the goals above, on the other hand, the invention also discloses a kind of high-strength weathering steel strips, before use A kind of production method for the high-strength weathering steel strip stated is produced.
A kind of high-strength weathering steel strip according to the present invention, it is preferable that its yield strength in 450MPa or more, strip Microstructure is acicular ferrite and a small amount of pearlite.
To achieve the goals above, another aspect, the invention discloses a kind of high-strength weathering steel strip, the chemistry of steel at Dividing includes: C :≤0.03wt%, Si:0.10-0.40wt%, Mn:1.50-2.00wt%, P :≤0.015wt%, S :≤ 0.003wt%, Cr :≤0.50wt%, Cu:0.20-1.00wt%, Nb:0.05-0.50wt%, remaining is for iron and unavoidably Impurity.
Beneficial technical effect
Compared with prior art, the features of the present invention and beneficial technical effect include at least:
(1) considerably reduce the C content in weathering steel, reduce the transformation amount of peritectic reaction during molten steel solidification with And volume change during solid-state phase changes substantially increases the surface of Cast Strip to reduce the risk of Cast Strip crackle appearance The surface quality of quality and final Thin Strip Steel improves the bending property and service performance of weathering steel;
(2) C content in weathering steel is reduced, the welding performance of weathering steel in use is significantly improved;
(3) production technology for adding 1 passage hot rolling using thin strap continuous casting, so that high-strength weather-proof steel-making process significantly contracts Short, production cost is greatly lowered;
(4) production procedure is shortened, the production difficulty of high-strength weathering steel strip is reduced, so that high-strength weather-proof strip The production efficiency of steel increases significantly.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the embodiment of the present invention, is below made to the attached drawing of embodiment simple be situated between It continues.It should be evident that the accompanying drawings in the following description only designs some embodiments of the present invention, rather than limitation of the present invention.
Fig. 1 is the metallographic structure of high-strength weathering steel strip according to the present invention.
Specific embodiment
It, below will be to the embodiment of the present invention in order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer Technical solution be clearly and completely described.Obviously, described embodiment is a part of the embodiments of the present invention, without It is whole embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art are being not necessarily to creative work Under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless otherwise defined, technical term or scientific term used in the disclosure should be tool in fields of the present invention The ordinary meaning for thering is the personage of general technical ability to be understood.
Embodiment 1
The present embodiment follows the steps below:
1) it smelts
Ladle chemistry are as follows: C:0.020wt%, Si:0.30wt%, Mn:1.80wt%, P:0.01wt%, S: 0.002wt%, Cr:0.40wt%, Cu:0.50wt%, Nb:0.10wt%, remaining is iron and inevitable impurity;
2) thin strap continuous casting
Qualified molten steel will be smelted and be casting continuously to form the Cast Strip with a thickness of 2.0mm by the casting roll of a pair of of opposite direction rotating;Molten steel The degree of superheat is 60 DEG C;
3) the online hot rolling in Cast Strip
Cast Strip is by 1 passage hot rolling at Thin Strip Steel, and hot rolling drafts is 50%, and strip is into the temperature before hot-rolling mill 980℃;
4) it cools down and batches
Hot-strip is cooled to 620 DEG C by the way that aerosol is cooling, and batches coiled.
It is 1.0mm by the obtained weathering steel strip thickness of above step, Mechanics Performance Testing, surrender is carried out to strip Intensity is 455MPa.
Embodiment 2
The present embodiment follows the steps below:
1) it smelts
Ladle chemistry are as follows: C:0.028wt%, Si:0.25wt%, Mn:1.60wt%, P:0.008wt%, S: 0.0022wt%, Cr:0.45wt%, Cu:0.90wt%, Nb:0.22wt%, remaining is iron and inevitable impurity;
2) thin strap continuous casting
Qualified molten steel will be smelted and be casting continuously to form the Cast Strip with a thickness of 2.4mm by the casting roll of a pair of of opposite direction rotating;Molten steel The degree of superheat is 40 DEG C;
3) the online hot rolling in Cast Strip
By 1 passage hot rolling at Thin Strip Steel, hot rolling drafts is 62.5% for Cast Strip, and strip is into the temperature before hot-rolling mill It is 1058 DEG C;
4) it cools down and batches
Hot-strip is cooled to 460 DEG C by the way that aerosol is cooling, and batches coiled.
It is 0.9mm by the obtained weathering steel strip thickness of above step, Mechanics Performance Testing, surrender is carried out to strip Intensity is 520MPa.
Embodiment 3
The present embodiment follows the steps below:
1) it smelts
Ladle chemistry are as follows: C:0.025wt%, Si:0.20wt%, Mn:1.40wt%, P:0.012wt%, S: 0.0023wt%, Cr:0.48wt%, Cu:0.70wt%, Nb:0.18wt%, remaining is iron and inevitable impurity;
2) thin strap continuous casting
Qualified molten steel will be smelted and be casting continuously to form the Cast Strip with a thickness of 1.6mm by the casting roll of a pair of of opposite direction rotating;Molten steel The degree of superheat is 20 DEG C;
3) the online hot rolling in Cast Strip
Cast Strip is by 1 passage hot rolling at Thin Strip Steel, and hot rolling drafts is 25%, and strip is into the temperature before hot-rolling mill 1020℃;
4) it cools down and batches
Hot-strip is cooled to 520 DEG C by the way that aerosol is cooling, and batches coiled.
It is 1.2mm by the obtained weathering steel strip thickness of above step, Mechanics Performance Testing, surrender is carried out to strip Intensity is 492MPa.
The above is only exemplary embodiment of the invention, protection scope and is not intended to limit the present invention, this hair Bright protection scope is determined by the attached claims.

Claims (12)

1. a kind of production method of high-strength weathering steel strip, which is characterized in that production method includes the following steps:
1) it smelts
Smelting obtains the molten steel of following ingredient: C :≤0.03wt%, Si:0.10-0.40wt%, Mn:1.50-2.00wt%, P: ≤ 0.015wt%, S :≤0.003wt%, Cr :≤0.50wt%, Cu:0.20-1.00wt%, Nb:0.05-0.50wt%, Yu Weitie and inevitable impurity;
2) thin strap continuous casting
Qualified molten steel will be smelted and be casting continuously to form Cast Strip by the casting roll of a pair of of opposite direction rotating;
3) the online hot rolling in Cast Strip
Cast Strip is by 1 passage hot rolling at Thin Strip Steel;
4) it cools down and batches
Thin Strip Steel after hot rolling is cooling by aerosol, and batches in rolls through coiling machine.
2. the production method of high-strength weathering steel strip as described in claim 1, which is characterized in that in step 2), Cast Strip is thick Degree is 1.4-2.5mm.
3. the production method of high-strength weathering steel strip as described in claim 1, which is characterized in that in step 2), molten steel connects Degree of superheat when casting is controlled at 100 DEG C or less.
4. the production method of high-strength weathering steel strip as described in claim 1, which is characterized in that in step 3), Cast Strip warp The drafts for crossing 1 passage hot rolling of hot-rolling mill is 15-65%.
5. the production method of high-strength weathering steel strip as described in claim 1, which is characterized in that in step 3), Cast Strip warp Cross hot rolling formed hot rolling thin strip with a thickness of 0.7-2.0mm.
6. the production method of high-strength weathering steel strip as described in claim 1, which is characterized in that in step 3), Cast Strip into Enter the temperature of hot-rolling mill at 950 DEG C or more.
7. the production method of high-strength weathering steel strip as described in claim 1, which is characterized in that in step 4), after hot rolling Thin Strip Steel be cooled to 450-650 DEG C by aerosol.
8. the production method of high-strength weathering steel strip as described in claim 1, which is characterized in that in step 4), after cooling Hot rolling thin strip tissue be acicular ferrite and a small amount of pearlite.
9. the production method of high-strength weathering steel strip as described in claim 1, which is characterized in that in step 4), hot rolled thin The yield strength of strip is in 450MPa or more.
10. a kind of high-strength weathering steel strip, which is characterized in that use the height as described in any one in claim 1-9 The production method of intensity weathering steel strip is produced.
11. high-strength weathering steel strip as claimed in claim 10, which is characterized in that the yield strength of Thin Strip Steel is in 450MPa More than, the microstructure of strip is acicular ferrite and a small amount of pearlite.
12. a kind of high-strength weathering steel strip, which is characterized in that the chemical component of steel includes: C :≤0.03wt%, Si:0.10- 0.40wt%, Mn:1.50-2.00wt%, P :≤0.015wt%, S :≤0.003wt%, Cr :≤0.50wt%, Cu:0.20- 1.00wt%, Nb:0.05-0.50wt%, remaining is iron and inevitable impurity.
CN201910130666.1A 2019-02-21 2019-02-21 High-strength weather-resistant steel thin strip and production method thereof Active CN109881091B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910130666.1A CN109881091B (en) 2019-02-21 2019-02-21 High-strength weather-resistant steel thin strip and production method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910130666.1A CN109881091B (en) 2019-02-21 2019-02-21 High-strength weather-resistant steel thin strip and production method thereof
PCT/CN2020/076116 WO2020169075A1 (en) 2019-02-21 2020-02-21 High-strength weather-proof thin steel strip and production method therefor

Publications (2)

Publication Number Publication Date
CN109881091A true CN109881091A (en) 2019-06-14
CN109881091B CN109881091B (en) 2021-06-15

Family

ID=66928802

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910130666.1A Active CN109881091B (en) 2019-02-21 2019-02-21 High-strength weather-resistant steel thin strip and production method thereof

Country Status (2)

Country Link
CN (1) CN109881091B (en)
WO (1) WO2020169075A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110983193A (en) * 2019-12-25 2020-04-10 江苏沙钢集团有限公司 800 MPa-grade high-strength steel based on thin strip casting and rolling and production method thereof
CN111041365A (en) * 2019-12-25 2020-04-21 江苏沙钢集团有限公司 500-700 MPa-level economical high-strength steel based on thin strip casting and rolling and production method thereof
CN111218607A (en) * 2020-04-16 2020-06-02 江苏沙钢集团有限公司 High-strength steel for seat sliding rail and method for producing high-strength steel based on thin strip casting
CN111215590A (en) * 2020-04-16 2020-06-02 江苏沙钢集团有限公司 Thin-gauge cold-rolled low-alloy high-strength steel and production method thereof based on double-roller casting rolling
WO2020169075A1 (en) * 2019-02-21 2020-08-27 江苏沙钢集团有限公司 High-strength weather-proof thin steel strip and production method therefor
CN112522568A (en) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 Fire-resistant weather-resistant steel plate/belt and manufacturing method thereof
CN112522595A (en) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 High-strength thin-specification fire-resistant weather-resistant steel plate/steel belt and production method thereof
CN112522594A (en) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 Thin-specification fire-resistant weather-resistant steel plate/belt and production method thereof
CN112522592A (en) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 High-strength thin-specification fire-resistant weather-resistant steel plate/belt and production method thereof
WO2021052426A1 (en) * 2019-09-19 2021-03-25 宝山钢铁股份有限公司 Thin-gauge and highly corrosion-resistant steel and production method therefor

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785544A (en) * 2005-12-15 2006-06-14 广州珠江钢铁有限责任公司 Technology of eliminating Nb microalloyed steel mixed crystal fexture in thin plate blank continuous casting continuous milling process
CN101684537A (en) * 2008-09-26 2010-03-31 宝山钢铁股份有限公司 Weather resisting steel produced by strip casting and production method thereof
WO2013107864A1 (en) * 2012-01-19 2013-07-25 Rautaruukki Oyj Method for producing a weather resistant hot-rolled high strength structural steel product and a weather resistant hot-rolled high strength structural steel product
CN103305770A (en) * 2012-03-14 2013-09-18 宝山钢铁股份有限公司 Method for manufacturing 550MPa-level high-strength atmospheric corrosion resistant steel strip through strip continuous casting
CN103305760A (en) * 2012-03-14 2013-09-18 宝山钢铁股份有限公司 Method for manufacturing 550MPa-level high-strength weather resistant steel through strip continuous casting
KR20150101733A (en) * 2014-02-27 2015-09-04 현대제철 주식회사 Hot-rolled steel sheet and method of manufacturing the same
CN107460413A (en) * 2017-08-16 2017-12-12 北京科技大学 A kind of preparation method and application of 550MPa levels Ultra-fine Grained high-strength weathering steel
JP2018024905A (en) * 2016-08-09 2018-02-15 Jfeスチール株式会社 Structural high strength thick steel plate excellent in brittle crack arrest property and production method thereof
CN108342665A (en) * 2018-03-22 2018-07-31 武汉钢铁有限公司 A kind of fixed marine drilling platform steel and production method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109881091B (en) * 2019-02-21 2021-06-15 江苏沙钢集团有限公司 High-strength weather-resistant steel thin strip and production method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785544A (en) * 2005-12-15 2006-06-14 广州珠江钢铁有限责任公司 Technology of eliminating Nb microalloyed steel mixed crystal fexture in thin plate blank continuous casting continuous milling process
CN101684537A (en) * 2008-09-26 2010-03-31 宝山钢铁股份有限公司 Weather resisting steel produced by strip casting and production method thereof
WO2013107864A1 (en) * 2012-01-19 2013-07-25 Rautaruukki Oyj Method for producing a weather resistant hot-rolled high strength structural steel product and a weather resistant hot-rolled high strength structural steel product
CN103305770A (en) * 2012-03-14 2013-09-18 宝山钢铁股份有限公司 Method for manufacturing 550MPa-level high-strength atmospheric corrosion resistant steel strip through strip continuous casting
CN103305760A (en) * 2012-03-14 2013-09-18 宝山钢铁股份有限公司 Method for manufacturing 550MPa-level high-strength weather resistant steel through strip continuous casting
KR20150101733A (en) * 2014-02-27 2015-09-04 현대제철 주식회사 Hot-rolled steel sheet and method of manufacturing the same
JP2018024905A (en) * 2016-08-09 2018-02-15 Jfeスチール株式会社 Structural high strength thick steel plate excellent in brittle crack arrest property and production method thereof
CN107460413A (en) * 2017-08-16 2017-12-12 北京科技大学 A kind of preparation method and application of 550MPa levels Ultra-fine Grained high-strength weathering steel
CN108342665A (en) * 2018-03-22 2018-07-31 武汉钢铁有限公司 A kind of fixed marine drilling platform steel and production method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
JANSTO, STEVEN G.等: "NIOBIUM-BEARING OFFSHORE PLATE STEEL PROCESS METALLURGY, DESIGN AND QUALITY", 《PROCEEDINGS OF THE ASME 35TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING 》 *
毛新平: "《薄板坯连铸连轧微合金化技术》", 31 January 2008 *
郭慧英等: "屈服强度450MPa级新型耐候钢研制", 《钢铁》 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020169075A1 (en) * 2019-02-21 2020-08-27 江苏沙钢集团有限公司 High-strength weather-proof thin steel strip and production method therefor
CN112522595A (en) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 High-strength thin-specification fire-resistant weather-resistant steel plate/steel belt and production method thereof
CN112522594A (en) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 Thin-specification fire-resistant weather-resistant steel plate/belt and production method thereof
CN112522592A (en) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 High-strength thin-specification fire-resistant weather-resistant steel plate/belt and production method thereof
WO2021052426A1 (en) * 2019-09-19 2021-03-25 宝山钢铁股份有限公司 Thin-gauge and highly corrosion-resistant steel and production method therefor
CN112522568A (en) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 Fire-resistant weather-resistant steel plate/belt and manufacturing method thereof
CN110983193A (en) * 2019-12-25 2020-04-10 江苏沙钢集团有限公司 800 MPa-grade high-strength steel based on thin strip casting and rolling and production method thereof
CN111041365A (en) * 2019-12-25 2020-04-21 江苏沙钢集团有限公司 500-700 MPa-level economical high-strength steel based on thin strip casting and rolling and production method thereof
CN111041365B (en) * 2019-12-25 2021-06-29 江苏沙钢集团有限公司 500-700 MPa-level economical high-strength steel based on thin strip casting and rolling and production method thereof
CN111218607A (en) * 2020-04-16 2020-06-02 江苏沙钢集团有限公司 High-strength steel for seat sliding rail and method for producing high-strength steel based on thin strip casting
CN111215590A (en) * 2020-04-16 2020-06-02 江苏沙钢集团有限公司 Thin-gauge cold-rolled low-alloy high-strength steel and production method thereof based on double-roller casting rolling

Also Published As

Publication number Publication date
CN109881091B (en) 2021-06-15
WO2020169075A1 (en) 2020-08-27

Similar Documents

Publication Publication Date Title
CN109881091A (en) A kind of high-strength weathering steel strip and its production method
CN107502821A (en) The economical X 70 pipeline steel plate and its manufacture method used under a kind of special think gauge ultra-low temperature surroundings
CN104946969B (en) Hot-rolled pickled steel plate for air conditioner compressor housings and manufacturing method thereof
CN106011643B (en) A kind of tensile strength 590MPa grades of cold-rolled biphase steels and preparation method thereof
CN101845599B (en) Weathering steel and manufacturing method thereof
CN104694822A (en) High-strength hot rolled steel plate with 700 MPa grade yield strength and manufacturing method thereof
CN109136738B (en) High-strength low-temperature-resistant hull structure steel plate and preparation method thereof
CN104264064B (en) A kind of special think gauge Q690 high strength structure plate and manufacture method thereof
CN103710638B (en) A kind of Martensite Stainless Steel and manufacture method thereof
CN104141099B (en) A kind of manufacture method of super thick specification X70 hot-rolled sheet coil
CN109504900B (en) A kind of superhigh intensity cold rolling transformation induced plasticity steel and preparation method thereof
CN109881084A (en) A kind of thin-belt casting rolling 550MPa grades of weathering steels and its production method
WO2016045266A1 (en) High-toughness hot-rolling high-strength steel with yield strength of 800 mpa, and preparation method thereof
CN103194689A (en) High-strength ferrite stainless steel with excellent formability and corrosion-resistant performance and preparation method thereof
CN109865806A (en) A kind of thin strap continuous casting 345MPa grades of weathering steels and its production method
CN108642379A (en) A kind of tensile strength 1200MPa grades of cold-rolled biphase steels and preparation method thereof
CN109881083A (en) A kind of thin-belt casting rolling 700MPa grades of weathering steels and its production method
CN105779873A (en) High-titanium low-cost S500MC hot-rolled pickled plate and production method thereof
CN107723602A (en) 750MPa levels hot-rolled ferrite-bainite dual-phase steel and its production method
CN105441814A (en) Hot rolled Q&P steel with 700MPa grade yield strength and ultralow yield ratio and manufacturing method thereof
CN103695807A (en) Ultrahigh-strength X100 pipeline steel plate with excellent crack resistance and preparation method thereof
CN105886914A (en) High-titanium low-cost S460MC hot-rolled pickle sheet and production method thereof
CN105950987A (en) High-titanium low-cost S420MC hot-rolled acid pickling plate and production method thereof
CN107385319A (en) Yield strength 400MPa level Precision Welded Pipe steel plates and its manufacture method
CN104073716A (en) Hot rolled steel plate for automotive frame and production method of hot rolled steel plate

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant