EP1563103A1 - Verfahren zum herstellen eines abriebfesten stahlblechs und so hergestelltes stahlblech - Google Patents
Verfahren zum herstellen eines abriebfesten stahlblechs und so hergestelltes stahlblechInfo
- Publication number
- EP1563103A1 EP1563103A1 EP03782550A EP03782550A EP1563103A1 EP 1563103 A1 EP1563103 A1 EP 1563103A1 EP 03782550 A EP03782550 A EP 03782550A EP 03782550 A EP03782550 A EP 03782550A EP 1563103 A1 EP1563103 A1 EP 1563103A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- optionally
- steel
- titanium
- temperature
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 45
- 239000010959 steel Substances 0.000 title claims abstract description 45
- 238000005299 abrasion Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 6
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 6
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 5
- 229910052714 tellurium Inorganic materials 0.000 claims abstract description 5
- 229910052745 lead Inorganic materials 0.000 claims abstract description 4
- 239000010936 titanium Substances 0.000 claims description 49
- 229910052719 titanium Inorganic materials 0.000 claims description 28
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 21
- 229910001566 austenite Inorganic materials 0.000 claims description 13
- 150000001247 metal acetylides Chemical class 0.000 claims description 13
- 229910000734 martensite Inorganic materials 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000003303 reheating Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- 235000019589 hardness Nutrition 0.000 description 15
- 229910052726 zirconium Inorganic materials 0.000 description 15
- -1 zirconium carbides Chemical class 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 8
- 229910052750 molybdenum Inorganic materials 0.000 description 8
- 239000011651 chromium Substances 0.000 description 7
- 239000011733 molybdenum Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000009466 transformation Effects 0.000 description 6
- 239000011572 manganese Substances 0.000 description 5
- 239000010955 niobium Substances 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910001563 bainite Inorganic materials 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011669 selenium Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 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 description 2
- 239000011159 matrix material Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000004771 selenides Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000004772 tellurides Chemical class 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- 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
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
-
- 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
- C22C38/18—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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- 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
- C21D2211/001—Austenite
-
- 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
- C21D2211/002—Bainite
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
Definitions
- the present invention relates to an abrasion-resistant steel and its method of manufacture.
- Abrasive steels of hardness close to 400 Brinell containing about 0.15% of carbon as well as manganese, nickel, chromium and molybdenum are known at levels of less than a few% in order to have sufficient quenchability. These steels are soaked so as to have a completely martensitic structure. They have the advantage of being relatively easy to implement by welding, cutting or folding. But they have the disadvantage of having a limited resistance to abrasion. It is certainly known to increase the resistance to abrasion by increasing the carbon content and therefore the hardness. But this way of proceeding has the disadvantage of deteriorating the ability to implement.
- the object of the present invention is to overcome these disadvantages by providing an abrasion-resistant steel sheet which, all things being equal, has a better abrasion resistance than that of known steels having a hardness of 400. Brinell, while having an implementation ability comparable to that of these steels.
- the subject of the invention is a process for manufacturing a part, and in particular a sheet, made of steel for abrasion, the chemical composition of which comprises, by weight: 0.1% ⁇ C ⁇ 0.23%
- Nb, Ta and V in contents such that Nb / 2 + Ta / 4 + V ⁇ 0.5%
- - optionally at least one element selected from Se, Te, Ca, Bi, Pb in contents of less than or equal to 0.1%, the balance being iron and impurities resulting from the preparation, the chemical composition further satisfying the following relationships :
- the part or the sheet is subjected to a quenching heat treatment, carried out in hot hot shaping such as rolling or after austenitization by reheating in an oven, which consists in:
- quenching may be followed by tempering at a temperature below 350 ° C, and preferably below 250 ° C.
- the invention also relates to a sheet obtained in particular by this method, whose flatness is characterized by an arrow less than or equal to 12 mm / m and preferably less than 5 mm / m, the steel having a structure consisting of 5% to 20% of retained austenite, the rest of the structure being martensitic or martensito- bainitic, and contains carbides.
- the thickness of the sheet may be between 2 mm and 150 mm.
- the hardness is between 280 HB and 450 HB.
- the invention will now be described in a more precise but nonlimiting manner and be illustrated by examples.
- a steel is produced whose chemical composition comprises, in% by weight:
- the sum Ti + Zr / 2 is greater than 0.05%, preferably greater than 0, 1%, and more preferably greater than 0.2%, for the steel to contain large titanium or zirconium carbides which increase the abrasion resistance. But the sum Ti + Zr / 2 must remain below 0.67% because, beyond, the steel would not contain enough free carbon for its hardness is sufficient. In addition, the Ti + Zr / 2 content will be preferentially lower than
- Mo + W / 2 being between 0.05% and 1%, and preferably remains less than 0.8%, or better, less than 0.5% o .
- These elements increase the quenchability and form in martensite or bainite thin carbides hardening, including self-precipitation precipitation during cooling. It is not necessary to exceed a molybdenum content of 1% in order to obtain the desired effect, particularly as regards the precipitation of hardening carbides.
- Molybdenum can be replaced in whole or in part by a double weight of tungsten. However, this substitution is not sought in practice because it offers no advantage over molybdenum and is more expensive.
- the boron content should preferably be greater than 0.0005% o or better 0.001%, and need not exceed substantially 0.01%.
- the steel contains Se and / or Te
- the manganese content must be sufficient in view of the sulfur content so that selenides or tellurides of manganese can be formed.
- the rest being iron and impurities resulting from the elaboration.
- the impurities there is in particular nitrogen, the content of which depends on the production process but does not exceed 0.03%, and remains generally less than
- Nitrogen can react with titanium or zirconium to form nitrides that should not be too big to deteriorate toughness.
- titanium and zirconium can be added to the liquid steel in a very gradual manner, for example by contacting the oxidized liquid steel with an oxidized phase such as a slag loaded with oxides of titanium or zirconium, then deoxidizing the liquid steel, so as to slowly diffuse titanium or zirconium from the oxidized phase to the liquid steel.
- the carbon, titanium, zirconium and nitrogen contents are chosen such that:
- C * C - Ti / 4 - Zr / 8 + 7xN / 8> 0.095% And preferably, C *> 0.12% to have a higher hardness and therefore a better abrasion resistance.
- the quantity C * represents the free carbon content after precipitation of the titanium and zirconium carbides, taking into account the formation of titanium and zirconium nitrides. This free carbon content C * must be greater than 0.095%) to have a martensitic or martensitobasicite structure having a sufficient hardness.
- the chemical composition is chosen so that the quenchability of the steel is sufficient, given the thickness of the sheet that is to be manufactured.
- the chemical composition must satisfy the relation:
- the micrographic structure of the steel consists of martensite or bainite or a mixture of these two structures, and from 5% to 20% > austenite retained .
- this structure comprises large titanium or zirconium carbides formed at high temperature, and optionally carbides of niobium, tantalum or vanadium. Due to the manufacturing process that will be described later, this structure is returned, so that it also includes molybdenum carbides or tungsten and possibly chromium carbides.
- the inventors have found that the effectiveness of large carbides for the improvement of the abrasion resistance could be obelated by premature loosening thereof and that this loosening could be avoided by the presence of metastable austenite which is transformed under the effect of abrasion phenomena.
- the transformation of the metastable austenite is by swelling, this transformation in the abraded undercoat increases the resistance to carburetion and thus improves abrasion resistance.
- This slower cooling in the bainitomensitic range has, in addition, the advantage of causing self-tempering which gives rise to the formation of molybdenum, tungsten or chromium carbides and improves the resistance to wear of the matrix surrounding the large carbides.
- the steel is made, cast in the form of a slab or ingot.
- the slab or slug is hot-rolled to obtain a sheet which is subjected to a heat treatment which makes it possible at the same time to obtain the desired structure and a good flatness without subsequent planing or with limited planing.
- the heat treatment can be carried out in the hot rolling or later, possibly after a cold or mid-heat planing.
- the steel is heated above the point AC 3 so as to give it a completely austenitic structure, in which, however, titanium or zirconium carbides remain,
- the sheet is cooled to an average cooling rate at heart Vr less than 1150xep "1 , 7 , and greater than 0.1 ° C / s, to obtain the desired structure,
- the sheet is cooled to room temperature, preferably, but not necessarily, at a slow speed.
- an expansion treatment such as a tempering at a temperature of less than or equal to 350 ° C, and preferably less than 250 ° C, can be carried out.
- average cooling rate is meant the cooling rate equal to the difference between the start and end temperatures of cooling divided by the cooling time between these two temperatures.
- the wear resistance of the steels is measured by the weight loss of a prismatic specimen rotated in a tank containing calibrated granules of quartzite for a period of 5 hours.
- the wear resistance index Rus of a steel is the ratio of the wear resistance of the steel F, taken as a reference, to the wear resistance of the steel under consideration.
- the sheets A to H are austenitized at 900 ° C. After austenitization:
- the steel sheet A is cooled at an average speed of 0.7 ° C./s above the temperature defined above (approximately 460 ° C.), and at an average speed of 0.13 ° C./s. below, according to the invention;
- the steel sheets B, C, D are cooled at an average speed of 6 ° C./s above the temperature T defined above (approximately 470 ° C.), and at an average speed of 1.4 ° C. s below, according to the invention;
- the steel sheets E, F, G and H given by way of comparison, were cooled at an average speed of 20 ° C./s above the temperature T defined above, and at an average speed of 12 ° C. C / s below.
- the sheets A to D have a martensite-bainitic self-regenerating structure containing about 10% retained austenite, as well as titanium carbides, while the plates E to G have a completely martensitic structure, the sheets G and H also containing large titanium carbides. It can be seen that, although having hardnesses less than those of the E and F sheets, the sheets A, B, C and D have substantially better abrasion resistance. The lower hardnesses, which correspond, for the most part, to lower free carbon contents, lead to better processability.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200331177T SI1563103T1 (sl) | 2002-11-19 | 2003-11-13 | Postopek za izdelavo abrazijsko odporne jeklene pločevine in tako izdelana jeklena pločevina |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0214425 | 2002-11-19 | ||
FR0214425A FR2847271B1 (fr) | 2002-11-19 | 2002-11-19 | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
PCT/FR2003/003357 WO2004048618A1 (fr) | 2002-11-19 | 2003-11-13 | Procede pour fabriquer une tole en acier resistant a l'abrasion et tôle obtenue |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1563103A1 true EP1563103A1 (de) | 2005-08-17 |
EP1563103B1 EP1563103B1 (de) | 2008-03-05 |
Family
ID=32187696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03782550A Expired - Lifetime EP1563103B1 (de) | 2002-11-19 | 2003-11-13 | Verfahren zum herstellen eines abriebfesten stahlblechs und so hergestelltes stahlblech |
Country Status (20)
Country | Link |
---|---|
US (2) | US7462251B2 (de) |
EP (1) | EP1563103B1 (de) |
JP (1) | JP4535875B2 (de) |
KR (1) | KR101010593B1 (de) |
CN (1) | CN100348739C (de) |
AR (1) | AR042072A1 (de) |
AT (1) | ATE388247T1 (de) |
AU (1) | AU2009201117B8 (de) |
BR (1) | BR0315694B1 (de) |
CA (1) | CA2506347C (de) |
DE (1) | DE60319567T2 (de) |
ES (1) | ES2300636T3 (de) |
FR (1) | FR2847271B1 (de) |
PE (1) | PE20040486A1 (de) |
PL (1) | PL203154B1 (de) |
PT (1) | PT1563103E (de) |
RU (1) | RU2326180C2 (de) |
UA (1) | UA81134C2 (de) |
WO (1) | WO2004048618A1 (de) |
ZA (1) | ZA200504151B (de) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2847272B1 (fr) * | 2002-11-19 | 2004-12-24 | Usinor | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
CN100419114C (zh) * | 2004-11-14 | 2008-09-17 | 林海 | 耐磨合金 |
EP1990431A1 (de) * | 2007-05-11 | 2008-11-12 | ArcelorMittal France | Verfahren zur Herstellung von kalt gewalzten und geglühten Stahlblechen mit sehr hoher Festigkeit und so hergestellte Bleche |
CA2694052C (en) | 2007-08-01 | 2016-09-27 | Ati Properties, Inc. | High hardness, high toughness iron-base alloys and methods for making same |
US8444776B1 (en) | 2007-08-01 | 2013-05-21 | Ati Properties, Inc. | High hardness, high toughness iron-base alloys and methods for making same |
TWI341332B (en) * | 2008-01-07 | 2011-05-01 | Nippon Steel Corp | Wear-resistant steel sheet having excellent wear resistnace at high temperatures and excellent bending workability and method for manufacturing the same |
ES2391312T3 (es) * | 2008-03-10 | 2012-11-23 | Swiss Steel Ag | Producto longitudinal laminado en caliente y procedimiento para su fabricación |
EP2123787A1 (de) * | 2008-05-06 | 2009-11-25 | Industeel Creusot | Stahl mit hoher Widerstandsfähigkeit für massive Teile |
CN101775545B (zh) * | 2009-01-14 | 2011-10-12 | 宝山钢铁股份有限公司 | 一种低合金高强度高韧性耐磨钢板及其制造方法 |
CN102127705B (zh) * | 2010-01-12 | 2013-07-17 | 宝山钢铁股份有限公司 | 一种高强度高硬度耐磨钢 |
CN102199737B (zh) * | 2010-03-26 | 2012-09-19 | 宝山钢铁股份有限公司 | 一种600hb级耐磨钢板及其制造方法 |
EP2374910A1 (de) * | 2010-04-01 | 2011-10-12 | ThyssenKrupp Steel Europe AG | Stahl, Stahlflachprodukt, Stahlbauteil und Verfahren zur Herstellung eines Stahlbauteils |
FR2958660B1 (fr) * | 2010-04-07 | 2013-07-19 | Ascometal Sa | Acier pour pieces mecaniques a hautes caracteristiques et son procede de fabrication. |
CN101880831B (zh) * | 2010-06-13 | 2012-07-04 | 东北大学 | 一种高强度高韧性低合金耐磨钢的制造方法 |
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