CA2544382A1 - Dual phase steel strip suitable for galvanizing - Google Patents
Dual phase steel strip suitable for galvanizing Download PDFInfo
- Publication number
- CA2544382A1 CA2544382A1 CA002544382A CA2544382A CA2544382A1 CA 2544382 A1 CA2544382 A1 CA 2544382A1 CA 002544382 A CA002544382 A CA 002544382A CA 2544382 A CA2544382 A CA 2544382A CA 2544382 A1 CA2544382 A1 CA 2544382A1
- Authority
- CA
- Canada
- Prior art keywords
- strip
- temperature
- max
- cooling
- steel
- 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
Links
- 238000005246 galvanizing Methods 0.000 title claims abstract 18
- 229910000885 Dual-phase steel Inorganic materials 0.000 title claims abstract 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract 21
- 239000010959 steel Substances 0.000 claims abstract 21
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract 7
- 239000011651 chromium Substances 0.000 claims abstract 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract 7
- 239000011733 molybdenum Substances 0.000 claims abstract 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract 6
- 239000011572 manganese Substances 0.000 claims abstract 6
- 229910000734 martensite Inorganic materials 0.000 claims abstract 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract 4
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract 4
- 239000010703 silicon Substances 0.000 claims abstract 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract 4
- 239000011593 sulfur Substances 0.000 claims abstract 4
- 239000010936 titanium Substances 0.000 claims abstract 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract 4
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract 4
- 239000011248 coating agent Substances 0.000 claims abstract 3
- 238000000576 coating method Methods 0.000 claims abstract 3
- 238000005244 galvannealing Methods 0.000 claims abstract 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims 19
- 238000001816 cooling Methods 0.000 claims 13
- 229910052751 metal Inorganic materials 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
- 238000002791 soaking Methods 0.000 claims 3
- 229910001335 Galvanized steel Inorganic materials 0.000 claims 2
- 230000009977 dual effect Effects 0.000 claims 2
- 239000008397 galvanized steel Substances 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 239000000470 constituent Substances 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 230000000877 morphologic effect Effects 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Coating With Molten Metal (AREA)
Abstract
Dual phase steel sheet is made using a time/temperature cycle including a soak at about AC1+45~F to AC1+135~F and a hold at 850-940F, where the steel has the composition in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150;
titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max; sulfur: 0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50; molybdenum: 0. 03 -1.50; with the provisos that the amounts of manganese, chromium and molybdenum have the relationship: (Mn + 6Cr + 10 Mo) = at least 3.5%. The sheet is preferably in the form of a strip suitable for coating in a continuous galvanizing or galvannealing line, and the product is predominantly ferrite and martensite.
The strip may be galvanized or galvannealed at a temperature within thirty degrees F of the temperature of the bath.
titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max; sulfur: 0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50; molybdenum: 0. 03 -1.50; with the provisos that the amounts of manganese, chromium and molybdenum have the relationship: (Mn + 6Cr + 10 Mo) = at least 3.5%. The sheet is preferably in the form of a strip suitable for coating in a continuous galvanizing or galvannealing line, and the product is predominantly ferrite and martensite.
The strip may be galvanized or galvannealed at a temperature within thirty degrees F of the temperature of the bath.
Claims (20)
1. Method of making an incipient dual phase steel sheet, wherein said steel sheet has the composition, in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max; sulfur:
0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50; molybdenum:0.03-1.50; with the provisos that the amounts of manganese, chromium and molybdenum have the relationship: (Mn + 6Cr + 10 Mo) = at least 3.5%, comprising soaking said steel sheet for 20 to 90 seconds at a temperature within the range of A c1+45°F, to A c1+135°F, cooling said steel sheet at a rate of at least 1°C per second to a temperature in the range 850-940°F, and holding said steel sheet in the range 850-940°F for 20 to 100 seconds.
0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50; molybdenum:0.03-1.50; with the provisos that the amounts of manganese, chromium and molybdenum have the relationship: (Mn + 6Cr + 10 Mo) = at least 3.5%, comprising soaking said steel sheet for 20 to 90 seconds at a temperature within the range of A c1+45°F, to A c1+135°F, cooling said steel sheet at a rate of at least 1°C per second to a temperature in the range 850-940°F, and holding said steel sheet in the range 850-940°F for 20 to 100 seconds.
2. Method of claim 1 wherein said steel sheet is a steel strip and said method is conducted continuously on a steel strip of at least 1000 feet.
3. Method of claim 1 including coating said steel sheet in a vessel of molten galvanizing metal at a temperature in the range 850-940°F before, during, or immediately after said holding.
4. Method of claim 3 wherein the temperature of said steel sheet during said coating is maintained within ~ 20°F of the molten metal temperature to minimize heat transfer between said steel strip and said molten metal.
5. Method of claim 1 followed by cooling said steel sheet to ambient temperature at a rate of at least 5°C per second, and wherein said dual phase is manifested thereafter in a microstructure predominantly of ferrite and martensite.
6. Method of claim 1 including galvannealing said steel sheet and cooling the steel sheet coated thereby at a rate of at least 5°C per second, and wherein said dual phase is manifested thereafter in a microstructure predominantly of ferrite and martensite.
7. Method of claim 1 wherein the carbon content of said steel is 0.03-0.12%.
8. Method of substantially continuously galvanizing steel strip in a galvanizing line including a galvanizing bath, comprising feeding a coil of steel strip having the composition, in weight percent, carbon: 0.02-0.20; aluminum:
0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max;
sulfur: 0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50;
molybdenum:0.03-1.50; With the provisos that the amounts of manganese, chromium and molybdenum have the relationship (M.n + 6Cr + 10 Mo) at least 3.5%, to a heating zone in said galvanizing line, passing said strip through a heating zone continuously to heat said strip to 1340-1425°F, passing said strip through a soaking zone to maintain said strip within the range of 1340-1425°F
for a period of 20 to 90 seconds, passing said strip through a cooling zone to cool said strip at a rate greater than 1°C per second, discontinuing cooling said strip when the temperature of said strip has been reduced to a temperature ~
30 degrees F of the temperature of said galvanizing bath, holding said strip at a temperature between 850-940°F and within 30 degrees F of the temperature of said galvanizing bath for a period of 20 to 100 seconds, passing said strip through said galvanizing bath, and cooling said strip to ambient temperature.
0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max;
sulfur: 0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50;
molybdenum:0.03-1.50; With the provisos that the amounts of manganese, chromium and molybdenum have the relationship (M.n + 6Cr + 10 Mo) at least 3.5%, to a heating zone in said galvanizing line, passing said strip through a heating zone continuously to heat said strip to 1340-1425°F, passing said strip through a soaking zone to maintain said strip within the range of 1340-1425°F
for a period of 20 to 90 seconds, passing said strip through a cooling zone to cool said strip at a rate greater than 1°C per second, discontinuing cooling said strip when the temperature of said strip has been reduced to a temperature ~
30 degrees F of the temperature of said galvanizing bath, holding said strip at a temperature between 850-940°F and within 30 degrees F of the temperature of said galvanizing bath for a period of 20 to 100 seconds, passing said strip through said galvanizing bath, and cooling said strip to ambient temperature.
9. Method of claim 8 wherein the residence time of said strip in said galvanizing bath is 3-6 seconds.
10. Method of claim 8 wherein said cooling in said cooling zone is conducted at 5 to 40 degrees F per second.
11. Method of claim 8 wherein said strip enters said galvanizing bath at a temperature within 20 degrees F of the temperature of said galvanizing bath.
12. Method of claim 8 wherein said strip is passed into said galvanizing bath immediately on discontinuing said cooling.
13. Method of claim 8 wherein said strip is passed into said galvanizing bath near the end of said period of 20 to 100 seconds.
14. Method of claim 8 whereby the galvanized steel strip so made has a predominantly ferrite-martensite microstructure containing less than 5% other morphological constituents.
15. Method of claim 8 wherein the carbon content of said steel strip is 0.03-0.12 weight percent.
16. Method of claim 8 wherein said steel strip is galvannealed prior to cooling to ambient temperature.
17. Method of making a galvanized steel strip having a predominantly martensite and ferrite microstructure, wherein said steel has the ingredients, in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max;
silicon: 0.5 max; phosphorous: 0.060 max; sulfur: 0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50; molybdenum:0.03-1.50, comprising soaking said steel strip at A cl+45°F, to A cl+135°F, for at least 20 seconds, cooling said strip at a rate of at least 1°C per second, passing said strip through a galvanizing vessel for a residence time therein of 2-9 seconds to coat said strip at any time while holding said strip at 895°F ~45°F for 20 to 100 seconds, and cooling the strip so coated to ambient temperature.
silicon: 0.5 max; phosphorous: 0.060 max; sulfur: 0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50; molybdenum:0.03-1.50, comprising soaking said steel strip at A cl+45°F, to A cl+135°F, for at least 20 seconds, cooling said strip at a rate of at least 1°C per second, passing said strip through a galvanizing vessel for a residence time therein of 2-9 seconds to coat said strip at any time while holding said strip at 895°F ~45°F for 20 to 100 seconds, and cooling the strip so coated to ambient temperature.
18. Method of claim 17 including galvannealing said strip prior to cooling to ambient temperature.
19. Method of claim 17 wherein said strip is within 30°F of the temperature of the galvanizing vessel during said residence time therein.
20. Method of claim 17 wherein said strip is within 20°F of the temperature of the galvanizing vessel during said residence time therein.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| USPCT/US2003/035095 | 2003-11-04 | ||
| PCT/US2003/035095 WO2004048634A1 (en) | 2002-11-26 | 2003-11-04 | Method for the production of dual phase sheet steel |
| PCT/US2004/015675 WO2005047550A1 (en) | 2003-11-04 | 2004-05-17 | Dual phase steel strip suitable for galvanizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2544382A1 true CA2544382A1 (en) | 2005-05-26 |
| CA2544382C CA2544382C (en) | 2010-04-06 |
Family
ID=34589294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2544382A Expired - Fee Related CA2544382C (en) | 2003-11-04 | 2004-05-17 | Dual phase steel strip suitable for galvanizing |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1682686B1 (en) |
| AU (1) | AU2004289949B2 (en) |
| CA (1) | CA2544382C (en) |
| ES (1) | ES2530066T3 (en) |
| PL (2) | PL1682686T3 (en) |
| WO (1) | WO2005047550A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5223360B2 (en) * | 2007-03-22 | 2013-06-26 | Ｊｆｅスチール株式会社 | High-strength hot-dip galvanized steel sheet with excellent formability and method for producing the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981002900A1 (en) * | 1980-03-31 | 1981-10-15 | Kawasaki Steel Co | High-tensile,cold-rolled steel plate with excellent formability and process for its production,as well as high-tensile,galvanized steel plate with excellent formability,and process for its produciton |
| US6517955B1 (en) * | 1999-02-22 | 2003-02-11 | Nippon Steel Corporation | High strength galvanized steel plate excellent in adhesion of plated metal and formability in press working and high strength alloy galvanized steel plate and method for production thereof |
| US6312536B1 (en) * | 1999-05-28 | 2001-11-06 | Kabushiki Kaisha Kobe Seiko Sho | Hot-dip galvanized steel sheet and production thereof |
| DE60116765T2 (en) * | 2000-01-24 | 2006-11-02 | Jfe Steel Corp. | FIREPLATED STEEL PLATE AND METHOD OF MANUFACTURING THEREOF |
| US20030129444A1 (en) * | 2000-11-28 | 2003-07-10 | Saiji Matsuoka | Composite structure type high tensile strength steel plate, plated plate of composite structure type high tensile strength steel and method for their production |
| CN1169991C (en) * | 2001-10-19 | 2004-10-06 | 住友金属工业株式会社 | Thin steel plate with good machining performance and formed precision and its mfg. method |
| US6811624B2 (en) * | 2002-11-26 | 2004-11-02 | United States Steel Corporation | Method for production of dual phase sheet steel |
-
2004
- 2004-05-17 WO PCT/US2004/015675 patent/WO2005047550A1/en active Application Filing
- 2004-05-17 PL PL04752656T patent/PL1682686T3/en unknown
- 2004-05-17 AU AU2004289949A patent/AU2004289949B2/en not_active Ceased
- 2004-05-17 ES ES04752656.1T patent/ES2530066T3/en not_active Expired - Lifetime
- 2004-05-17 EP EP04752656.1A patent/EP1682686B1/en not_active Expired - Lifetime
- 2004-05-17 PL PL379761A patent/PL210446B3/en unknown
- 2004-05-17 CA CA2544382A patent/CA2544382C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005047550A1 (en) | 2005-05-26 |
| EP1682686B1 (en) | 2014-11-12 |
| ES2530066T3 (en) | 2015-02-26 |
| AU2004289949B2 (en) | 2011-04-28 |
| AU2004289949A1 (en) | 2005-05-26 |
| PL379761A1 (en) | 2006-11-13 |
| EP1682686A4 (en) | 2007-06-27 |
| EP1682686A1 (en) | 2006-07-26 |
| CA2544382C (en) | 2010-04-06 |
| PL210446B3 (en) | 2012-01-31 |
| PL1682686T3 (en) | 2015-04-30 |
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