CN107130188A - Welding ferritic stainless steel and its method for refining - Google Patents
Welding ferritic stainless steel and its method for refining Download PDFInfo
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- CN107130188A CN107130188A CN201710224477.1A CN201710224477A CN107130188A CN 107130188 A CN107130188 A CN 107130188A CN 201710224477 A CN201710224477 A CN 201710224477A CN 107130188 A CN107130188 A CN 107130188A
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- B22D11/16—Controlling or regulating processes or operations
-
- 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
- C21C7/068—Decarburising
- C21C7/0685—Decarburising of stainless steel
-
- 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
- C21C7/076—Use of slags or fluxes as treating agents
-
- 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
- C22C38/02—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a kind of welding ferritic stainless steel and its method for refining, it includes, and AOD furnace is smelted, LF stoves are refined and CC casting process；The weight/mass percentage composition of the stainless steel chemical component is：C ＜ 0.03%, Si ＜ 1.0%, Mn ＜ 1.5%, P ＜ 0.03%, S ＜ 0.01%, Cr 11.00~12.50%, Mo ＜ 0.6%, Ni 0.9~1.1%, surplus are Fe and inevitable impurity.This stainless steel makes it there is a certain proportion of austenite under welding temperature by optimizing composition, prevents drastically growing up for ferrite crystal grain, while improving nickel, molybdenum content in steel, improves material weldability and corrosion resistance.This method improves welding and the corrosion resisting property of ferritic stainless steel, can be used in more rugged environment, and the usage cycles of product can be greatly improved, and reduces frequently pollution of the processing to environment；Products obtained therefrom has good weldability and corrosion resisting property, and the screen product used need to be welded available for replacement galvanized wire, Zn-Al alloy wire etc.；The pollution in process of manufacture can be efficiently reduced.
Description
Technical field
The present invention relates to a kind of stainless steel and its method for refining, especially a kind of welding ferritic stainless steel and its refining
Method.
Background technology
At present, domestic galvanized wire and Zn-Al alloy wire usage amount is very big, is mainly used in highway, railway protective net and is used for
The gabion box of hydraulic engineering, the product is mainly progress surface heat plating after ordinary low-carbon steel drawing, makes it have certain corrosion resistance,
But largely harmful human health " three wastes " product can be not only given off in electroplating process, and IE can also produce serious danger to environment
Evil.
Stainless steel has good corrosion resisting property in itself, while stainless iron, which is drawn into after filament, possesses certain
Pliability (or by annealing, make it possess more preferably mechanical property)；Therefore, the ferrite stainless with good welds performance
Steel can need to weld the screen product used for galvanized wire, Zn-Al alloy wire etc..Life of the ferritic stainless steel from mother metal to product
Production process need not be electroplated, therefore can greatly reduce the pollution to environment.
The content of the invention
The technical problem to be solved in the present invention is to provide the good welding ferritic stainless steel of a kind of weldability, corrosion resistance；
Present invention also offers a kind of method for refining of welding ferritic stainless steel.
In order to solve the above technical problems, the weight/mass percentage composition for the chemical composition that the present invention is taken is：C ＜ 0.03%, Si
＜ 1.0%, Mn ＜ 1.5%, P ＜ 0.03%, S ＜ 0.01%, Cr 11.00~12.50%, Mo ＜ 0.6%, Ni ＜ 1.1%, N ＜
0.025%, surplus is Fe and inevitable impurity.
It is preferred that, the weight/mass percentage composition of chemical composition is：C ＜ 0.03%, Si 0.3%~0.4%, Mn 0.7%~0.9%,
P ＜ 0.03%, S ＜ 0.01%, Cr 11.50~12.50%, Mo 0.2%~0.3%, 0.9%≤Ni ＜ 1.1%, N ＜ 0.025%, it is remaining
Measure as Fe and inevitable impurity.
The inventive method includes AOD furnace smelting, the refining of LF stoves and CC casting process；The quality of the stainless steel chemical component
Percentage composition is as described above.
Rifle each phase gas in side is assigned as in AOD furnace smelting process described in the inventive method：1 stage of decarburization O222~
24Nm3/ ton steel, N22.0~2.5Nm3/ ton steel；2 stage of decarburization O238~40Nm3/ ton steel, Ar24.7~5.2Nm3/ ton steel；
3 stage of decarburization O21.6~2.1Nm3/ ton steel, Ar21.6~2.1Nm3/ ton steel；4 stage of decarburization O20.85~1.05Nm3/ ton
Steel, Ar22.5~2.8Nm3/ ton steel；5 stage of decarburization O21.4~1.6Nm3/ ton steel, Ar25.4~5.7Nm3/ ton steel；Decarburization 6
Stage O21.6~1.8Nm3/ ton steel, Ar26.8~7.1Nm3/ ton steel；7 stage of decarburization O20.9~1.1Nm3/ ton steel, Ar2
7.1~7.3Nm3/ ton steel；Reduction period stage Ar26.5~6.7Nm3/ ton steel；
The casting process：First stove tundish temperature control is at 1540~1555 DEG C, and pulling rate is 1.05~1.15m/min；Non- first stove
Tundish temperature is controlled in 1535~1550 DEG C, 1.05~1.15m/min of casting speed control；Weak intensity is cooled down during two cold stages used,
The middle weak intensity is cooled to the two cold areas of stage one and controlled per streamflow in 180~200L/min, and 2nd area are controlled per streamflow
150~180L/min, 3rd area are controlled in 100~120L/min per streamflow.
1250 DEG C of the temperature ＞ for the dephosphorization molten iron that AOD furnace smelting process described in the inventive method is used, wherein main component
Weight/mass percentage composition be：C >=3.0%, Si≤0.02%, P≤0.03%.
Top gun oxygen pressure is 6~17bar in AOD furnace smelting process described in the inventive method, and it is 60 to carry blowing oxygen quantity before rifle
~62m3/ ton steel.
Ferrochrome, molybdenum-iron, electrolytic manganese and nickel plate are separately added into AOD furnace smelting process described in the inventive method and carries out alloy
Change；Decarburization and cr yield after alloying, reduction period adds ferrosilicon to carry out chromium oxide reduction.
In LF stoves refining process described in the inventive method, argon bottom-blowing time ＞ 12min before casting, upper machine pouring temperature
1620~1640 DEG C.
In casting process described in the inventive method, slow cooling is carried out after steel billet straightening.
The principle of the inventive method is：Dephosphorization molten iron containing compared with low phosphorus content, by AOD refining furnaces respectively blow the stage mix
The reasonable set of gas ratio is closed, decarburization and cr yield and heating treatment to greatest extent is carried out, carried out while adding compared with stable element
Molten steel alloying, reduction period adds a certain amount of ferrosilicon and carries out Cr in slag2O3Reduction, further improves yield of alloy, and LF stoves are smelted
Process is finely tuned and temperature control by alloying element, is that follow-up casting steel billet is ready, because the steel grade is high in casting process
Wen Shiwei " ferrite+austenite " two-way tissue, thus two cold stages need to using weak cold operation, to mitigate steel billet internal stress, simultaneously
Steel billet carries out slow cooling by being needed after straightening section.
It is using the beneficial effect produced by above-mentioned technical proposal：The present invention by optimize ferritic stainless steel finished product into
Point, it is there is a certain proportion of austenite under welding temperature, prevent drastically growing up for ferrite crystal grain, while improving in steel
Nickel, molybdenum content, improve material weldability and corrosion resistance.
The inventive method improves welding and the corrosion resisting property of ferritic stainless steel, can make in more rugged environment
With the usage cycles of product are greatly improved in class, reduce frequently pollution of the processing to environment；Products obtained therefrom has good weldability
And corrosion resisting property, the screen product used need to be welded available for replacement galvanized wire, Zn-Al alloy wire etc.；Production can be efficiently reduced
Pollution in process.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the organization chart of steel billet of the present invention；
Fig. 2 is the organization chart of hot rolling wire of the present invention；
Fig. 3 is the welding organization chart of product of the present invention；
Fig. 4 is the corrosion comparison diagram of product of the present invention.
Embodiment
Embodiment 1-6：This welding is with the technological process of the method for refining of ferritic stainless steel：Dephosphorization molten iron-AOD furnace
Smelting-LF stoves refining-CC continuous castings-rolling, is that can be used by annealing and pickling；Each technical process is as described below：
（1）Dephosphorization molten iron：Main component in dephosphorization molten iron（wt）Need to meet：C >=3.0%, Si≤0.02%, P≤0.03%, molten iron
1250 DEG C of temperature ＞.The Contents of Main Components of dephosphorization molten iron is shown in Table 1 in each embodiment.
Table 1：The Contents of Main Components of dephosphorization molten iron in each embodiment
（2）AOD furnace smelting process：Dephosphorization molten iron is calculated by 40~50 tons of charge weights, and tap is by 57~60 tons of calculating, top gun oxygen
Atmospheric pressure scope is 6~17bar, carries 60~62m of blowing oxygen quantity before rifle3/ ton steel, side rifle oxygen, argon pressure scope be 3~
19bar, each phase gas of side rifle is assigned as：1 stage of decarburization O222~24Nm3/ ton steel, N22.0~2.5Nm3/ ton steel；Decarburization
2 stage O238~40Nm3/ ton steel, Ar24.7~5.2Nm3/ ton steel；3 stage of decarburization O21.6~2.1Nm3/ ton steel, Ar2
1.6~2.1Nm3/ ton steel；4 stage of decarburization O20.85~1.05Nm3/ ton steel, Ar22.5~2.8Nm3/ ton steel；The stage of decarburization 5
O21.4~1.6Nm3/ ton steel, Ar25.4~5.7Nm3/ ton steel；6 stage of decarburization O21.6~1.8Nm3/ ton steel, Ar26.8~
7.1Nm3/ ton steel；7 stage of decarburization O20.9~1.1Nm3/ ton steel, Ar27.1~7.3Nm3/ ton steel；Reduction period stage Ar2 6.5
~6.7Nm3/ ton steel.The specific gas distribution in side rifle each stage is shown in Table 2 in each embodiment.
Table 2：The specific gas distribution in side rifle each stage in each embodiment（Nm3/ ton steel）
In smelting process, be separately added into the alloys such as ferrochrome, molybdenum-iron, nickel plate carry out alloying, wherein ferrochrome addition be 250~
260kg/ tons of steel（Chromium absorptivity about 95.5%）, about 3.8~4.0kg/ tons of steel of molybdenum-iron addition（Molybdenum absorptivity about 98%）, electrolytic manganese
About 7.7~7.9kg/ tons of steel of addition（Manganese integrated absorbance about 85%）, about 9.7~9.9kg/ tons of steel of nickel plate addition（Nickel absorbs
Rate is about 98%）, slag alkalinity ranges are 2.0~2.2, and decarburization and cr yield is carried out after alloying, and reduction period adds ferrosilicon to carry out chromium oxide
Reduce, tapping component requirements are（wt）：C≤0.02%, Si 0.3%~0.4%, Mn 0.6%~0.8%, P≤0.03%, S≤
0.01%, Cr 10.5%~11.5%, 0.9%≤Ni ＜ 1.1%, Mo≤0.6%, surplus is Fe and inevitable impurity.It is each to implement
Metal of alloying addition is shown in Table 3 in example.
Table 3：Metal of alloying addition in each embodiment（Kg/ tons of steel）
（2）LF stove refining process：AOD molten steel is blended into LF stoves, the alloys such as low-carbon ferrochromium, electrolytic manganese, nickel plate and molybdenum-iron are added
Trimming is carried out, before upper machine casting, the argon bottom-blowing time answers >=12min, steel inclusion is fully floated, upper machine cast temperature
1620~1640 DEG C are spent, the weight/mass percentage composition of finished product composition is：C ＜ 0.03%, Si ＜ 1.0%, Mn ＜ 1.5%, P ＜ 0.03%, S
＜ 0.01%, Cr 11.00~12.50%, Mo ＜ 0.6%, Ni ＜ 1.1%, N ＜ 0.025%, surplus are Fe and inevitably miscellaneous
Matter.The weight/mass percentage composition of preferred component is：C ＜ 0.03%, Si 0.3%~0.4%, Mn 0.7%~0.9%, P ＜ 0.03%, S ＜
0.01%th, Cr 11.50~12.50%, Mo 0.2%~0.3%, 0.9%≤Ni ＜ 1.1%, N ＜ 0.025%, surplus are Fe and can not
The impurity avoided.The component content of each embodiment LF stoves refining tapping is shown in Table 4.
Table 4：The component content of each embodiment LF stoves refining tapping（wt%）
（3）CC casting process：Steel grade liquidus temperature is 1504 DEG C；First stove tundish temperature control range is 1540~1555 DEG C,
1.05~1.15m/min of casting speed control；It is 1535~1550 DEG C that temperature controlling range is reported in non-first stove, casting speed control 1.05~
1.15m/min；1500~1600L/min of crystallizer water；M-EMS Current 370A；M-EMS frequency
4.0Hz；Weak intensity is cooled down during two cold stages used, and slow cooling is needed after steel billet straightening；The retarded cooling process：Entered using van-type heating furnace
Row annealing, opens the maximum heating ability of heating furnace, in-furnace temperature is risen into 500 DEG C, continuous casting billet is put into heating furnace, 1h is incubated
Afterwards, insulation is stopped, by door opened 5cm, when temperature is down to 400 DEG C by door opened to 15cm, when temperature is down to 250 DEG C
Fire door is all turned on, when temperature is down to below 100 DEG C, heating furnace chassis is outputed and is air-cooled to room temperature, terminates slow cooling.Each reality
The concrete technology for applying CC continuous castings in example is shown in Table 5.
Table 5：The concrete technology of CC continuous castings in each embodiment
Fig. 1 is the organization chart of the gained steel billet of embodiment 1；Fig. 2 is the organization chart of the gained hot rolling wire of embodiment 1；Fig. 3 is embodiment
The welding organization chart of 1 products obtained therefrom；Fig. 4 is the corrosion comparison diagram of the products obtained therefrom of embodiment 1, wherein left number first three be conventional work
0Cr13C steel wires obtained by skill, last is the gained 0Cr13Ni steel wires of embodiment 1.From Fig. 1-4, the steel grade strand low power
Sample is normal, and intercrystalline straightening cracks are not found, illustrate that whole continuous casting production process Stress Control is good.Organized after wire annealing equal
It is even, it is " ferrite+carbide " under normal temperature, with good mechanical property, meets the smart line production of the follow-up drawing of client.Weld zone
Obvious weld seam is not present in domain, while grain size and the more conventional 0Cr13C of high-temperature heat-affected zone area (low manganese) steel grade substantially subtract
It is small.Corrosion test equipment is：Smoke test machine (5% NaCl aerosolized salines), processing time 200h, the sample of left side three is
0Cr13C steel grades, rightmost side sample are 0Cr13Ni steel grades in embodiment, and contrast can be seen that under the conditions of same treatment, 0Cr13C samples
Product surface oxidisation phenomenon is serious, and 0Cr13Ni sample surfaces almost do not get rusty, illustrate that the composition steel grade corrosion resistance is good.
Claims (9)
1. a kind of welding ferritic stainless steel, it is characterised in that the weight/mass percentage composition of its chemical composition is：C ＜ 0.03%,
Si ＜ 1.0%, Mn ＜ 1.5%, P ＜ 0.03%, S ＜ 0.01%, Cr 11.00~12.50%, Mo ＜ 0.6%, Ni ＜ 1.1%, N ＜
0.025%, surplus is Fe and inevitable impurity.
2. welding ferritic stainless steel according to claim 1, it is characterised in that the quality percentage of its chemical composition contains
Measure and be：C ＜ 0.03%, Si 0.3%~0.4%, Mn 0.7%~0.9%, P ＜ 0.03%, S ＜ 0.01%, Cr 11.50~12.50%,
Mo 0.2%~0.3%, 0.9%≤Ni ＜ 1.1%, N ＜ 0.025%, surplus are Fe and inevitable impurity.
3. a kind of method for refining of welding ferritic stainless steel, it is characterised in that：It include AOD furnace smelt, LF stoves refining and
CC casting process；The weight/mass percentage composition of the stainless steel chemical component is：C ＜ 0.03%, Si ＜ 1.0%, Mn ＜ 1.5%, P ＜
0.03%th, S ＜ 0.01%, Cr 11.00~12.50%, Mo ＜ 0.6%, Ni ＜ 1.1%, N ＜ 0.025%, surplus are Fe and can not kept away
The impurity exempted from.
4. the method for refining of welding ferritic stainless steel according to claim 3, it is characterised in that the AOD furnace smelting
Rifle each phase gas in side is assigned as during refining：1 stage of decarburization O222~24Nm3/ ton steel, N22.0~2.5Nm3/ ton steel；It is de-
2 stage of carbon O238~40Nm3/ ton steel, Ar24.7~5.2Nm3/ ton steel；3 stage of decarburization O21.6~2.1Nm3/ ton steel, Ar2
1.6~2.1Nm3/ ton steel；4 stage of decarburization O20.85~1.05Nm3/ ton steel, Ar22.5~2.8Nm3/ ton steel；The stage of decarburization 5
O21.4~1.6Nm3/ ton steel, Ar25.4~5.7Nm3/ ton steel；6 stage of decarburization O21.6~1.8Nm3/ ton steel, Ar26.8~
7.1Nm3/ ton steel；7 stage of decarburization O20.9~1.1Nm3/ ton steel, Ar27.1~7.3Nm3/ ton steel；Reduction period stage Ar2 6.5
~6.7Nm3/ ton steel；
The CC casting process：First stove tundish temperature control is at 1540~1555 DEG C, and pulling rate is 1.05~1.15m/min；Non- head
Stove tundish temperature is controlled in 1535~1550 DEG C, 1.05~1.15m/min of casting speed control；Weak intensity is cold during two cold stages used
But, the middle weak intensity is cooled to the every streamflow control in the two cold areas of stage one in 180~200L/min, and 2nd area are controlled per streamflow
In 150~180L/min, 3rd area are controlled in 100~120L/min per streamflow.
5. the method for refining of welding ferritic stainless steel according to claim 4, it is characterised in that：The AOD furnace smelting
1250 DEG C of the temperature ＞ for the dephosphorization molten iron that refining process is used, the weight/mass percentage composition of wherein main component is：C >=3.0%, Si≤
0.02%, P≤0.03%.
6. the method for refining of welding ferritic stainless steel according to claim 4, it is characterised in that：The AOD furnace smelting
Top gun oxygen pressure is 6~17bar during refining, and it is 60~62m to carry blowing oxygen quantity before rifle3/ ton steel.
7. the method for refining of welding ferritic stainless steel according to claim 4, it is characterised in that：The AOD furnace smelting
Ferrochrome, molybdenum-iron, electrolytic manganese and nickel plate are separately added into during refining and carries out alloying；Decarburization and cr yield after alloying, reduction period adds silicon
Iron carries out chromium oxide reduction.
8. the method for refining of welding ferritic stainless steel according to claim 4, it is characterised in that：The LF stoves refining
During, argon bottom-blowing time ＞ 12min before casting, upper 1620~1640 DEG C of machine pouring temperature.
9. the method for refining of the welding ferritic stainless steel according to claim 4-8 any one, it is characterised in that：
In the CC casting process, slow cooling is carried out after steel billet straightening.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959179A (en) * | 2022-06-07 | 2022-08-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Production method of stainless steel plate blank for welding strip |
| CN115976410A (en) * | 2022-12-16 | 2023-04-18 | 烟台华新不锈钢有限公司 | Ferritic stainless steel for welding and production and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271344A (en) * | 1990-03-22 | 1991-12-03 | Nisshin Steel Co Ltd | Ferritic stainless steel having excellent strength in high frequency weld zone |
| CN1796585A (en) * | 2004-12-27 | 2006-07-05 | 宝钢集团上海第一钢铁有限公司 | Method for smelting ferritic stainless steel from total molten iron |
| JP2007239060A (en) * | 2006-03-10 | 2007-09-20 | Nisshin Steel Co Ltd | Surface hardened ferritic stainless steel sheet |
| CN103014239A (en) * | 2012-12-27 | 2013-04-03 | 邢台钢铁有限责任公司 | Production method of ER308L steel grade in 300 series stainless steel |
| CN105132819A (en) * | 2015-08-13 | 2015-12-09 | 山西太钢不锈钢股份有限公司 | Continuous rolling method of low-chromium ferrite stainless steel |
-
2017
- 2017-04-07 CN CN201710224477.1A patent/CN107130188B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271344A (en) * | 1990-03-22 | 1991-12-03 | Nisshin Steel Co Ltd | Ferritic stainless steel having excellent strength in high frequency weld zone |
| CN1796585A (en) * | 2004-12-27 | 2006-07-05 | 宝钢集团上海第一钢铁有限公司 | Method for smelting ferritic stainless steel from total molten iron |
| JP2007239060A (en) * | 2006-03-10 | 2007-09-20 | Nisshin Steel Co Ltd | Surface hardened ferritic stainless steel sheet |
| CN103014239A (en) * | 2012-12-27 | 2013-04-03 | 邢台钢铁有限责任公司 | Production method of ER308L steel grade in 300 series stainless steel |
| CN105132819A (en) * | 2015-08-13 | 2015-12-09 | 山西太钢不锈钢股份有限公司 | Continuous rolling method of low-chromium ferrite stainless steel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959179A (en) * | 2022-06-07 | 2022-08-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Production method of stainless steel plate blank for welding strip |
| CN114959179B (en) * | 2022-06-07 | 2023-08-04 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Production method of stainless steel plate blank for welding strip |
| CN115976410A (en) * | 2022-12-16 | 2023-04-18 | 烟台华新不锈钢有限公司 | Ferritic stainless steel for welding and production and manufacturing method thereof |
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