CN107254643A - A kind of ship steel material and preparation method thereof - Google Patents
A kind of ship steel material and preparation method thereof Download PDFInfo
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- CN107254643A CN107254643A CN201710442747.6A CN201710442747A CN107254643A CN 107254643 A CN107254643 A CN 107254643A CN 201710442747 A CN201710442747 A CN 201710442747A CN 107254643 A CN107254643 A CN 107254643A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 82
- 239000010959 steel Substances 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012452 mother liquor Substances 0.000 claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 11
- 238000010791 quenching Methods 0.000 claims abstract description 11
- 230000000171 quenching effect Effects 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 7
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 238000005261 decarburization Methods 0.000 claims abstract description 6
- 238000011010 flushing procedure Methods 0.000 claims abstract description 6
- 238000005098 hot rolling Methods 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000006104 solid solution Substances 0.000 claims abstract description 6
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 6
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 5
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 5
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 5
- 235000019738 Limestone Nutrition 0.000 claims description 5
- 108010038629 Molybdoferredoxin Proteins 0.000 claims description 5
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims description 5
- 239000010459 dolomite Substances 0.000 claims description 5
- 229910000514 dolomite Inorganic materials 0.000 claims description 5
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 4
- 239000013535 sea water Substances 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 241001062472 Stokellia anisodon Species 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- 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
-
- 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
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
-
- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a kind of ship steel material and preparation method thereof, it is related to steel manufacture field, the steel include following components：C：0.38~0.64%, Mn：0.21~0.37%, Ni：0.20~0.30%, Cr：0.23~0.41%, Si：0.28~0.40%, Al：0.12~0.24%, Mo：0.08~0.16%, Ti：0.03~0.07%, Te：0.01~0.03%, Nb：0.004~0.008%, surplus is Fe and inevitable impurity.Its preparation method is that the raw material of industry is placed in electric furnace to smelt, control mother liquor composition in electric furnace, the mother liquor come out of the stove is transferred in argon oxygen decarburizing furnace again and carries out oxygen decarburization, nitrogen flushing and composition adjustment, molten steel is cast into ingot casting afterwards, forge again, steel plate is made in hot rolling, most afterwards through solid solution and Quenching Treatment.This kind of ship steel material can be good at being subjected to the corrosion of seawater, and intensity is high, impact flexibility is good, and machining property is excellent, and welding performance is high, effectively extends the service life of ship steel.
Description
Technical field
The invention belongs to steel manufacture field, and in particular to a kind of ship steel material and preparation method thereof.
Background technology
Ship steel refers to what is produced with shipbuilding application specific architecture steel, for manufacturing ocean, coastal and inland waterway navigation ship
Ship Structure sheet metal and steel plate.Because marine environment is severe, chemical attack that hull shell will be by seawater, electrification
Learn corrosion and marine growth, the corrosion of microorganism；The larger stormy waves impact of hull bear and stress alternation；Shipform processes it
The factors such as method complexity, so strict to steel for ship structure requirement.Toughness good first is the requirement of most critical, in addition,
It is required that there is higher intensity, good decay resistance, welding performance, machine-shaping property and surface quality.Ship Structure
With steel plate of the steel plate mainly for the manufacture of ocean, coastal and inland navigation vessels hulls, deck etc..
China's shipping industry shipbuilding yield occupies third place in the world in continuous 11 years, in world industry portion by
6% in 2000 brings up to 20% in 2005, and the ship output to China in 2015 will be up to 2400 ten thousand years gross tons, from China's ship
From the point of view of oceangoing ship industrial expansion trend, in the coming years, ship plate demand may proceed to be in growing trend.Shipbuilding situation it is at full speed
The yield and quality that development shows shipbuilding steel will be lifted, particularly the quality of shipbuilding steel, not only meet general state
The magic weapon vied each other between border standard, even more ship enterprise, China will make the country prosperous from the first in the world shipbuilding big country to the first in the world shipbuilding
Stride forward, shipbuilding steel quality of materials must be improved accordingly, and the material for how manufacturing and selecting cost performance higher is manufactured as hull
With steel, it is Ship Design personnel and standardization the personnel important topic to be solved under the new situation, is also shipbuilding quality
Guarantee.
And ship steel problem encountered mainly has the following aspects at present：1) low intensity；2) corrosion-resistant；3)
Hardness is low；4) impact flexibility is not enough；5) low welding performance；6) frost resistance is poor.
The content of the invention
For problems of the prior art, the invention provides a kind of ship steel material and preparation method thereof, this kind
Ship steel material can be good at being subjected to the corrosion of seawater, and intensity is high, impact flexibility is good, and machining property is excellent, welding performance
Height, effectively extends the service life of ship steel.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of ship steel material, including following components：C：0.38~0.64%, Mn：0.21~
0.37%th, Ni：0.20~0.30%, Cr：0.23~0.41%, Si：0.28~0.40%, Al：0.12~0.24%, Mo：
0.08~0.16%, Ti：0.03~0.07%, Te：0.01~0.03%, Nb：0.004~0.008%, surplus is Fe and can not
The impurity avoided.
Further, the steel include following components：C：0.46%th, Mn：0.29%th, Ni：
0.25%th, Cr：0.32%th, Si：0.34%th, Al：0.18%th, Mo：0.12%th, Ti：0.05%th, Te：0.02%th, Nb：
0.006%, surplus is Fe and inevitable impurity.
Further, the steel also include following components：S：≤ 0.015%, P：≤
0.020%th, N：≤ 0.016%.
Further, the steel also include following components：S：≤ 0.008%, P：≤
0.012%th, N：≤ 0.010%.
Further, percentage by weight≤0.01% of the impurity.
A kind of preparation method of above-mentioned ship steel material, is followed the steps below：
(1) raw material of industry is placed in electric furnace and smelted, mother liquor composition is in above-mentioned degree in control electric furnace, control
Molten steel tapping temperature is at 1520-1680 DEG C；
(2) mother liquor come out of the stove is transferred in argon oxygen decarburizing furnace and carries out oxygen decarburization, nitrogen flushing and composition adjustment；
(3) under the conditions of 1640-1760 DEG C, molten steel is cast into ingot casting；
(4) above-mentioned ingot casting is forged into steel at 1080-1160 DEG C, steel plate is made in further hot rolling afterwards；
(5) finally by the steel plate after rolling through solid solution and Quenching Treatment.
Preferably, the raw material of industry includes ferromanganese, ferrochrome, molybdenum-iron, ferronickel, lime stone, dolomite and carborundum.
Further, the temperature of the solution treatment is 1020-1180 DEG C, and the time is 6-8h.
Further, the temperature of the Quenching Treatment is 780-860 DEG C, and the time is 1-2h.
The present invention has following beneficial effect：The ship steel of the present invention not only has good mechanical strength, and
There is excellent corrosion resistance, Cr, Si, Nb, Ti are added in steel raw material, the electrochemical corrosion of finished steel plate is improved；
Mn, Ni, Al, Mo, Te are added in steel raw material, can make mutually to merge between each component, while crystal boundary and dislocation migration are prevented,
So as to significantly improve intensity, hardness and toughness.And then the steel for making prepared steel more conform to navigation operation are needed
Ask, prepared steel can extend the service life of ship, improve the security and reliability of navigation operation.
Embodiment
The embodiment of the present invention is further described with reference to embodiment, following examples are only used for more
Technical scheme is clearly demonstrated, and can not be limited the scope of the invention with this.
The percentage of the ship steel material ingredient of the present invention is as shown in table 1 below：
Table 1
Under be classified as the preparation method of each embodiment ship steel material：
Embodiment 1
A kind of preparation method of above-mentioned ship steel material, is followed the steps below：
(1) raw material of industry ferromanganese, ferrochrome, molybdenum-iron, ferronickel, lime stone, dolomite and carborundum are placed in electric furnace and smelted,
Mother liquor composition in electric furnace is controlled in above-mentioned degree, to control molten steel tapping temperature at 1520 DEG C；
(2) mother liquor come out of the stove is transferred in argon oxygen decarburizing furnace and carries out oxygen decarburization, nitrogen flushing and composition adjustment (by upper table 1
Regulation and control)；
(3) under the conditions of 1640 DEG C, molten steel is cast into ingot casting；
(4) above-mentioned ingot casting is forged into steel at 1080 DEG C, 1mm steel plates are made in further hot rolling afterwards；
(5) finally by the steel plate after rolling through solid solution and Quenching Treatment, and the temperature of solution treatment is 1020 DEG C, and the time is
6h；The temperature of Quenching Treatment is 780 DEG C, and the time is 1h, that is, the ship steel material of the present invention is made.
Embodiment 2
A kind of preparation method of above-mentioned ship steel material, is followed the steps below：
(1) raw material of industry ferromanganese, ferrochrome, molybdenum-iron, ferronickel, lime stone, dolomite and carborundum are placed in electric furnace and smelted,
Mother liquor composition in electric furnace is controlled in above-mentioned degree, to control molten steel tapping temperature at 1600 DEG C；
(2) mother liquor come out of the stove is transferred in argon oxygen decarburizing furnace and carries out oxygen decarburization, nitrogen flushing and composition adjustment (by upper table 1
Regulation and control)；
(3) under the conditions of 1700 DEG C, molten steel is cast into ingot casting；
(4) above-mentioned ingot casting is forged into steel at 1120 DEG C, 3mm steel plates are made in further hot rolling afterwards；
(5) finally by the steel plate after rolling through solid solution and Quenching Treatment, and the temperature of solution treatment is 1100 DEG C, and the time is
7h；The temperature of Quenching Treatment is 820 DEG C, and the time is 1.5h, that is, the ship steel material of the present invention is made.
Embodiment 3
A kind of preparation method of above-mentioned ship steel material, is followed the steps below：
(1) raw material of industry ferromanganese, ferrochrome, molybdenum-iron, ferronickel, lime stone, dolomite and carborundum are placed in electric furnace and smelted,
Mother liquor composition in electric furnace is controlled in above-mentioned degree, to control molten steel tapping temperature at 1680 DEG C；
(2) mother liquor come out of the stove is transferred in argon oxygen decarburizing furnace and carries out oxygen decarburization, nitrogen flushing and composition adjustment (by upper table 1
Regulation and control)；
(3) under the conditions of 1760 DEG C, molten steel is cast into ingot casting；
(4) above-mentioned ingot casting is forged into steel at 1080-1160 DEG C, 5mm steel plates are made in further hot rolling afterwards；
(5) finally by the steel plate after rolling through solid solution and Quenching Treatment, and the temperature of solution treatment is 1180 DEG C, and the time is
8h；The temperature of Quenching Treatment is 860 DEG C, and the time is 2h, that is, the ship steel material of the present invention is made.
Performance detection
Ship steel material is made to above-described embodiment 1-3 and carries out performance detection, specific detection data see the table below shown in 2.
Table 2
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of ship steel material, it is characterised in that including following components：C：0.38~0.64%,
Mn：0.21~0.37%, Ni：0.20~0.30%, Cr：0.23~0.41%, Si：0.28~0.40%, Al：0.12~
0.24%th, Mo：0.08~0.16%, Ti：0.03~0.07%, Te：0.01~0.03%, Nb：0.004~0.008%, surplus
For Fe and inevitable impurity.
2. a kind of ship steel material according to claim 1, it is characterised in that including it is following by weight percentage into
Point：C：0.46%th, Mn：0.29%th, Ni：0.25%th, Cr：0.32%th, Si：0.34%th, Al：0.18%th, Mo：0.12%th, Ti：
0.05%th, Te：0.02%th, Nb：0.006%, surplus is Fe and inevitable impurity.
3. a kind of ship steel material according to claim 1, it is characterised in that the steel also include following by weight hundred
Divide the composition than meter：S：≤ 0.015%, P：≤ 0.020%, N：≤ 0.016%.
4. a kind of ship steel material according to claim 3, it is characterised in that the steel also include following by weight hundred
Divide the composition than meter：S：≤ 0.008%, P：≤ 0.012%, N：≤ 0.010%.
5. a kind of ship steel material according to Claims 1-4, it is characterised in that the percentage by weight of the impurity≤
0.01%.
6. the preparation method of a kind of ship steel material as described in claim 1-5 any one, it is characterised in that including following
Step：
(1) raw material of industry is placed in electric furnace and smelted, mother liquor composition controls molten steel in above-mentioned degree in control electric furnace
Tapping temperature is at 1520-1680 DEG C；
(2) mother liquor come out of the stove is transferred in argon oxygen decarburizing furnace and carries out oxygen decarburization, nitrogen flushing and composition adjustment；
(3) under the conditions of 1640-1760 DEG C, molten steel is cast into ingot casting；
(4) above-mentioned ingot casting is forged into steel at 1080-1160 DEG C, steel plate is made in further hot rolling afterwards；
(5) finally by the steel plate after rolling through solid solution and Quenching Treatment.
7. the preparation method of a kind of ship steel material according to claim 6, it is characterised in that the raw material of industry includes
Ferromanganese, ferrochrome, molybdenum-iron, ferronickel, lime stone, dolomite and carborundum.
8. a kind of preparation method of ship steel material according to claim 6, it is characterised in that the temperature of the solution treatment
Spend for 1020-1180 DEG C, the time is 6-8h.
9. a kind of preparation method of ship steel material according to claim 6, it is characterised in that the temperature of the Quenching Treatment
Spend for 780-860 DEG C, the time is 1-2h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442747.6A CN107254643A (en) | 2017-06-13 | 2017-06-13 | A kind of ship steel material and preparation method thereof |
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| CN107254643A true CN107254643A (en) | 2017-10-17 |
Family
ID=60024616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710442747.6A Withdrawn CN107254643A (en) | 2017-06-13 | 2017-06-13 | A kind of ship steel material and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101410541A (en) * | 2006-12-25 | 2009-04-15 | 新日本制铁株式会社 | Steel for machine structure excelling in machinability and strength property |
| CN102741440A (en) * | 2010-05-31 | 2012-10-17 | 新日本制铁株式会社 | Steel material for quenching and method of producing same |
| CN103014549A (en) * | 2012-12-26 | 2013-04-03 | 振石集团东方特钢股份有限公司 | High-performance duplex stainless steel and processing method thereof |
| CN104178704A (en) * | 2014-09-01 | 2014-12-03 | 浙江工贸职业技术学院 | Alloy material for ship valve and preparation method thereof |
-
2017
- 2017-06-13 CN CN201710442747.6A patent/CN107254643A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101410541A (en) * | 2006-12-25 | 2009-04-15 | 新日本制铁株式会社 | Steel for machine structure excelling in machinability and strength property |
| CN102741440A (en) * | 2010-05-31 | 2012-10-17 | 新日本制铁株式会社 | Steel material for quenching and method of producing same |
| CN103014549A (en) * | 2012-12-26 | 2013-04-03 | 振石集团东方特钢股份有限公司 | High-performance duplex stainless steel and processing method thereof |
| CN104178704A (en) * | 2014-09-01 | 2014-12-03 | 浙江工贸职业技术学院 | Alloy material for ship valve and preparation method thereof |
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