EP1052296A2 - Armour plate and process for its manufacture - Google Patents
Armour plate and process for its manufacture Download PDFInfo
- Publication number
- EP1052296A2 EP1052296A2 EP00109687A EP00109687A EP1052296A2 EP 1052296 A2 EP1052296 A2 EP 1052296A2 EP 00109687 A EP00109687 A EP 00109687A EP 00109687 A EP00109687 A EP 00109687A EP 1052296 A2 EP1052296 A2 EP 1052296A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- armor plate
- steel alloy
- quenching
- hot
- 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.)
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing 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
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- 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
- C21D9/42—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for armour plate
-
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
-
- 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
- C21D1/78—Combined heat-treatments not provided for above
Definitions
- the invention relates to a hot-rolled armored sheet with a tempering structure with a yield strength> 1100 N / mm 2 and a hardness> 400 HB from a low-alloy steel and a method for its production.
- the slabs After heating to a temperature of> 1150 ° C, the slabs, which are preferably produced in a continuous casting process, are hot-rolled into coarse strips or sheets.
- the armored sheet which was rolled to its final thickness, is hardened after cooling to room temperature by reheating to above Ac 3 and quenching at a rate of> 1 K / s in oil or water.
- the sheet can then be tempered in the temperature range of 180 to 250 ° C if necessary.
- a high hardness is set which is as little as possible below the starting hardness.
- These well-known armor plates are characterized by a homogeneous structure as well as high hardness and bullet resistance even in the case of large thicknesses. The penetration depth of projectiles can usually be reduced by 30%.
- an armor plate made of steel is included 0.25 - 0.45% C, 0.08 - 0.50% Si, 0.30 - 1.50% Mn, ⁇ 0.02% P, ⁇ 0.02% S, 0.60 - 1.80% Cr, 0.20-0.60% Mo, ⁇ 0.006% B, 0.02-0.15% Al and / or Ti and 0.005 - 0.03% Nb known from CA 1 266 760 C1, which austenitizes at 860 to 960 ° C, then quenched and tempered at 160-550 ° C.
- the invention has for its object a armor plate to propose which, on the one hand, with regard to the Bullet resistance at least equally good properties like armored sheets of the type explained above on the other hand, however, improved material properties, like a higher yield strength, a higher strength at the same time higher toughness and an improved Has weldability.
- a hot-rolled and tempered armor plate made of a steel alloy which has the following chemical composition (in% by mass):
- the steel alloy can additionally contain up to 0.005% boron contain.
- the nitrogen content of the steel alloy should preferably limited to 0.004 to 0.008%.
- the new steel alloy stands out from the Known steel alloy explained at the beginning on the one hand through a lower carbon content and secondly by the carbonitride former vanadium as precipitation-hardening element. Surprisingly achieved one from the steel alloy according to the invention produced armored sheet in the tempered condition despite the lower carbon content compared to known Armor plates have a significantly higher yield strength and Strength, but also a higher toughness and one higher elongation at break.
- the yield strength of the armor plate according to the invention is over 1100 N / mm 2 compared to only 950 N / mm 2 of the known armor plate.
- the minimum tensile strength is 1200 N / mm 2 , in particular 1250 N / mm 2 , and is consequently significantly higher than the minimum tensile strength of 1150 N / mm 2 achieved in the prior art.
- the toughness of armor sheets according to the invention measured on an ISO-V transverse sample at -40 ° C., is A v ⁇ 27 joules. Their elongation at break is more than 10%.
- Armor plate according to the invention preferably has a predominantly martenistic structure with a fine Grit. Result in particularly good material properties itself when the proportion of the martensitic structure is at least 98%.
- room temperature i.e. to a well below the martensite start temperature fine-grained martensitic structure.
- Whose Fine grain can be further improved in that the quench to room temperature after the second Austenitization in the temperature range of 800 - 500 ° C with one related to the sheet metal core Cooling rate of at least 5 K / s takes place, whereby preferably for the rapid cooling Pressurized water is used.
- a melt of the composition shown in Table 1 was poured into a 260 mm thick slab.
- the slab was based on a furnace temperature of 1250 ° C, with a piercing temperature of about 1100 ° C at a final rolling temperature of 950 ° C to a final thickness of 10, 40 and 50 mm hot rolled. Then the Compensation treatment.
- sheets 1, 3 and 4 in Table 2 consisted of austenitizing (940 ° C / water) with subsequent tempering 320 ° C / air. Sheet 2 was austenitized twice, quenched and tempered.
- the samples of the like Properties obtained from armored sheet metal are in Table 2 compiled.
- the yield strength and tensile strength are well above the aforementioned minimum limits.
- the elongation values are approx. 11 to 12% is extraordinarily good, and the notched impact strength values are also significantly above the aforementioned minimum limit of 27 J.
- the hardness values are all above 400 HB.
- the double austenitized sheet 2 again achieved increased values of the mechanical properties.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Die Erfindung betrifft ein warmgewalztes Panzerblech mit Vergütungsgefüge mit einer Streckgrenze > 1100 N/mm2 und einer Härte > 400 HB aus einem niedrig legierten Stahl und ein Verfahren zu seiner Herstellung.The invention relates to a hot-rolled armored sheet with a tempering structure with a yield strength> 1100 N / mm 2 and a hardness> 400 HB from a low-alloy steel and a method for its production.
Zur Herstellung von Panzerblechen mit einer Mindesthärte von 400 HB und einer Enddicke über 50 mm aus Stahlbrammen durch Warmwalzen, Härten und Anlassen ist aus der DE 42 23 895 C1 eine Stahllegierung bekannt mit 0,25 bis 0,32 % C, 0,05 bis 0,75 % Si, 0,10 bis 1,50 % Mn, 0,90 bis 2,00 % Cr, 0,10 bis 0,70 % Mo, 1,20 bis 4,50 % Ni, 0,01 bis 0,08 % Al, max. 0,050 % Nb, max. 0,10 % V, max. 0,015 % P, max. 0,005 % S, max. 0,012 % N, Rest Fe einschl. üblicher Verunreinigungen und ggf. 0,001 bis 0,004 % B.For the production of armored sheets with a minimum hardness of 400 HB and a final thickness of over 50 mm from steel slabs by hot rolling, hardening and tempering DE 42 23 895 C1 a steel alloy known with 0.25 to 0.32% C, 0.05 to 0.75% Si, 0.10 to 1.50% Mn, 0.90 up to 2.00% Cr, 0.10 to 0.70% Mo, 1.20 to 4.50% Ni, 0.01 to 0.08% Al, max. 0.050% Nb, max. 0.10% V, Max. 0.015% P, max. 0.005% S, max. 0.012% N, balance Fe including common impurities and possibly 0.001 to 0.004% B.
Nach einem Durcherwärmen auf eine Temperatur von > 1150 °C werden die bevorzugt im Stranggießverfahren erzeugten Brammen zu Grobbändern oder -blechen warmgewalzt. Das auf Enddicke fertiggewalzte Panzerblech wird nach dem Abkühlen auf Raumtemperatur durch Wiedererwärmen auf oberhalb Ac3 und Abschrecken mit einer Geschwindigkeit von > 1 K/s in Öl oder Wasser gehärtet. Anschließend kann das Blech im Bedarfsfall im Temperaturgebiet von 180 bis 250 °C angelassen werden. Dadurch wird eine hohe, möglichst nur wenig unter der Ansprunghärte liegende Härte eingestellt. Diese bekannten Panzerbleche zeichnen sich auch bei großer Dicke durch ein homogenes Gefüge sowie hohe Härte und Beschußfestigkeit aus. Die Eindringtiefe von Geschossen kann in der Regel um 30 % verringert werden.After heating to a temperature of> 1150 ° C, the slabs, which are preferably produced in a continuous casting process, are hot-rolled into coarse strips or sheets. The armored sheet, which was rolled to its final thickness, is hardened after cooling to room temperature by reheating to above Ac 3 and quenching at a rate of> 1 K / s in oil or water. The sheet can then be tempered in the temperature range of 180 to 250 ° C if necessary. As a result, a high hardness is set which is as little as possible below the starting hardness. These well-known armor plates are characterized by a homogeneous structure as well as high hardness and bullet resistance even in the case of large thicknesses. The penetration depth of projectiles can usually be reduced by 30%.
Weiterhin ist ein Panzerblech aus einem Stahl mit 0,25 - 0,45 % C, 0,08 - 0,50 % Si, 0,30 - 1,50 % Mn, ≤ 0,02 % P, ≤ 0,02 % S, 0,60 - 1,80 % Cr, 0,20 - 0,60 % Mo, ≤ 0,006 % B, 0,02 - 0,15 % Al und/oder Ti und 0,005 - 0,03 % Nb aus der CA 1 266 760 C1 bekannt, welches bei 860 bis 960 °C austenitisiert, danach abgeschreckt und bei 160 - 550 °C angelassen wird.Furthermore, an armor plate made of steel is included 0.25 - 0.45% C, 0.08 - 0.50% Si, 0.30 - 1.50% Mn, ≤ 0.02% P, ≤ 0.02% S, 0.60 - 1.80% Cr, 0.20-0.60% Mo, ≤ 0.006% B, 0.02-0.15% Al and / or Ti and 0.005 - 0.03% Nb known from CA 1 266 760 C1, which austenitizes at 860 to 960 ° C, then quenched and tempered at 160-550 ° C.
Der Erfindung liegt die Aufgabe zugrunde, ein Panzerblech vorzuschlagen, welches einerseits hinsichtlich der Durchschußhemmung mindestens gleich gute Eigenschaften wie Panzerbleche der voranstehend erläuterten Art andererseits jedoch verbesserte Werkstoffeigenschaften, wie eine höhere Streckgrenze, eine höhere Festigkeit bei gleichzeitig höherer Zähigkeit und eine verbesserte Schweißbarkeit aufweist.The invention has for its object a armor plate to propose which, on the one hand, with regard to the Bullet resistance at least equally good properties like armored sheets of the type explained above on the other hand, however, improved material properties, like a higher yield strength, a higher strength at the same time higher toughness and an improved Has weldability.
Zur Lösung dieser Aufgabe wird gemäß der Erfindung ein warmgewalztes und vergütetes Panzerblech aus einer Stahllegierung vorgeschlagen, das folgende chemische Zusammensetzung (in Masse-%) aufweist: To achieve this object, a hot-rolled and tempered armor plate made of a steel alloy is proposed according to the invention, which has the following chemical composition (in% by mass):
Innerhalb des erfindungsgemäßen Zusammensetzungsbereichs wird eine Stahllegierung folgender Zusammensetzung (in Massse-%) bevorzugt: Within the composition range according to the invention, a steel alloy of the following composition (in mass%) is preferred:
Die Stahllegierung kann zusätzlich bis 0,005 % Bor enthalten. Der Stickstoffgehalt der Stahllegierung soll bevorzugt auf 0,004 bis 0,008 % begrenzt sein.The steel alloy can additionally contain up to 0.005% boron contain. The nitrogen content of the steel alloy should preferably limited to 0.004 to 0.008%.
Die neue Stahllegierung zeichnet sich gegenüber den eingangs erläuterten bekannten Stahllegierung zum einen durch einen niedrigeren Kohlenstoffgehalt und zum anderen durch den Karbonitridbildner Vanadium als ausscheidungshärtendes Element aus. Überraschenderweise erreicht ein aus der erfindungsgemäßen Stahllegierung erzeugtes Panzerblech im vergüteten Zustand trotz des niedrigeren Kohlenstoffgehaltes gegenüber bekannten Panzerblechen eine deutlich höhere Streckgrenze und Festigkeit, aber auch eine höhere Zähigkeit und eine höhere Bruchdehnung.The new steel alloy stands out from the Known steel alloy explained at the beginning on the one hand through a lower carbon content and secondly by the carbonitride former vanadium as precipitation-hardening element. Surprisingly achieved one from the steel alloy according to the invention produced armored sheet in the tempered condition despite the lower carbon content compared to known Armor plates have a significantly higher yield strength and Strength, but also a higher toughness and one higher elongation at break.
Durch die verbesserte Zähigkeit in Kombination mit der verbesserten Bruchdehnung kann ein aus erfindungsgemäß zusammengesetztem Stahl erzeugtes Panzerblech die schockartige Beanspruchung bei Minenexplosionen ohne die Gefahr einer Bruch- oder Rißbildung aufnehmen. Auch die Sicherheit gegen die Entstehung von Sprüngen und gegen die Ausbildung von Rissen oder Abplatzungen bei direktem Beschuß ist bei erfindungsgemäßem Stahl gegenüber herkömmlichen Stählen der gattungsgemäßen Art verbessert. Daher sind die Gebrauchseigenschaften von erfindungsgemäßem Panzerblech gegenüber dem Stand der Technik deutlich verbessert.Due to the improved toughness in combination with the Improved elongation at break can be made according to the invention composite steel produced armor plate shock like mine explosions without the Take up the risk of breaking or cracking. Also the Security against the occurrence of jumps and against the formation of cracks or flaking in direct Shelling is compared to steel according to the invention conventional steels of the generic type improved. Therefore, the performance characteristics of Armor sheet according to the invention compared to the prior art Technology significantly improved.
Die Streckgrenze des erfindungsgemäßen Panzerblechs liegt über 1100 N/mm2 gegenüber nur 950 N/mm2 des bekannten Panzerblechs. Die Mindestzugfestigkeit beträgt 1200 N/mm2, insbesondere 1250 N/mm2, und ist folglich deutlich höher als die beim Stand der Technik errreichte Mindestzugfestigtkeit von 1150 N/mm2. Die Zähigkeit erfindungsgemäßer Panzerbleche gemessen an einer ISO-V-Querprobe bei -40 °C liegt bei Av ≥ 27 Joule. Ihre Bruchdehnung liegt bei mehr als 10 %.The yield strength of the armor plate according to the invention is over 1100 N / mm 2 compared to only 950 N / mm 2 of the known armor plate. The minimum tensile strength is 1200 N / mm 2 , in particular 1250 N / mm 2 , and is consequently significantly higher than the minimum tensile strength of 1150 N / mm 2 achieved in the prior art. The toughness of armor sheets according to the invention, measured on an ISO-V transverse sample at -40 ° C., is A v ≥ 27 joules. Their elongation at break is more than 10%.
Erfindungsgemäßes Panzerblech besitzt vorzugsweise ein überwiegend martenistisches Gefüge mit einer feinen Körnung. Besonders gute Materialeigenschaften ergeben sich, wenn der Anteil des martensitischen Gefüges mindestens 98 % beträgt.Armor plate according to the invention preferably has a predominantly martenistic structure with a fine Grit. Result in particularly good material properties itself when the proportion of the martensitic structure is at least 98%.
Bei der Vergütungsbehandlung des Panzerblechs wird eine zweifache Austenitisierung im Temperaturbereich von 880 bis 980 °C mit Luftabkühlung zwischen den Austenitisierungsvorgängen, Abschrecken nach der zweiten Austenitisierung auf Raumtemperatur und ein abschließendes Anlassen bei 150 bis 550 °C bevorzugt. Durch die Abschreckung bis zur Raumtemperatur, d.h. bis deutlich unterhalb der Martensitstarttemperatur, wird ein feinkörniges martensitisches Gefüge erzeugt. Dessen Feinkörnigkeit kann dadurch noch verbessert werden, daß die Abschreckung auf Raumtemperatur nach der zweiten Austenitisierung im Temperaturbereich von 800 - 500 °C mit einer auf den Blechkern bezogenen Abkühlgeschwindigkeit vom mindestens 5 K/s erfolgt, wobei für die derart schnelle Abkühlung vorzugsweise Druckwasser eingesetzt wird. Indem ein erfindungsgemäß zusammengesetztes, in der Regel in Grobblechdicke ausgeführtes Blech im Zuge seiner Vergütung bis hinein in seinen Kern mit derart hohen Geschwindigkeiten abgekühlt wird, wird ein Panzerblech erhalten, das einen Anteil an sehr feinkörnigem Martensit von mehr als 98 % besitzt. Ein solches Panzerblech hat, wie voranstehend schon erwähnt, hervorragende Eigenschaften und erfüllt die an Bleche der in Rede stehenden Art gestellten Anforderungen zuverlässig.When the armored sheet is treated, a double austenitization in the temperature range of 880 up to 980 ° C with air cooling between the Austenitization processes, quenching after the second Austenitization to room temperature and on final tempering at 150 to 550 ° C preferred. By quenching to room temperature, i.e. to a well below the martensite start temperature fine-grained martensitic structure. Whose Fine grain can be further improved in that the quench to room temperature after the second Austenitization in the temperature range of 800 - 500 ° C with one related to the sheet metal core Cooling rate of at least 5 K / s takes place, whereby preferably for the rapid cooling Pressurized water is used. By an according to the invention composite, usually in heavy plate thickness executed sheet metal in the course of its remuneration up to its core cooled at such high speeds armor sheet is obtained, which has a share in very fine-grained martensite of more than 98%. Such an armor plate has, as already mentioned above mentions excellent properties and meets the requirements Sheets of the type in question reliable.
Eine Schmelze der Zusammensetzung gemäß Tabelle 1 wurde zu einer 260 mm dicken Bramme abgegossen. Die Bramme wurde, ausgehend von einer Stoßofentemperatur von 1250 °C, mit einer Anstichtemperatur von etwa 1100 °C bei einer Endwalztemperatur von 950 °C auf Enddicken von 10, 40 und 50 mm warmgewalzt. Danach erfolgte die Vergütungsbehandlung. Bei den Blechen 1, 3 und 4 in Tabelle 2 bestand diese aus Austenitisieren (940 °C / Wasser) mit nachfolgendem Anlassen auf 320 °C/Luft. Das Blech 2 wurde zweifach austenitisiert, abgeschreckt und angelassen. Die an Proben der so gewonnenen Panzerbleche ermittelten Eigenschaften sind in der Tabelle 2 zusammengestellt.A melt of the composition shown in Table 1 was poured into a 260 mm thick slab. The slab was based on a furnace temperature of 1250 ° C, with a piercing temperature of about 1100 ° C at a final rolling temperature of 950 ° C to a final thickness of 10, 40 and 50 mm hot rolled. Then the Compensation treatment. For sheets 1, 3 and 4 in Table 2 consisted of austenitizing (940 ° C / water) with subsequent tempering 320 ° C / air. Sheet 2 was austenitized twice, quenched and tempered. The samples of the like Properties obtained from armored sheet metal are in Table 2 compiled.
Die Streckgrenze und Zugfestigkeit liegt deutlich
oberhalb der vorgenannten Mindestgrenzwerte. Die
Dehnwerte sind mit rd. 11 bis 12 % außerordentlich gut,
und die Kerbschlagzähigkeitswerte liegen ebenfalls
deutlich über der vorgenannten Mindestgrenze von 27 J.
Die Härtewerte liegen alle oberhalb 400 HB. Das zweifach
austenitisierte Blech 2 erzielte nochmals erhöhte Werte
der mechanischen Eigenschaften.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK00109687T DK1052296T3 (en) | 1999-05-08 | 2000-05-08 | Use of a steel for making armor plates |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19921327 | 1999-05-08 | ||
DE19921327 | 1999-05-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1052296A2 true EP1052296A2 (en) | 2000-11-15 |
EP1052296A3 EP1052296A3 (en) | 2002-06-26 |
EP1052296B1 EP1052296B1 (en) | 2004-12-15 |
Family
ID=7907466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00109687A Expired - Lifetime EP1052296B1 (en) | 1999-05-08 | 2000-05-08 | Use of a steel for the manufacture of amour plates |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1052296B1 (en) |
AT (1) | ATE284977T1 (en) |
DE (1) | DE50008938D1 (en) |
DK (1) | DK1052296T3 (en) |
ES (1) | ES2234476T3 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1321535A2 (en) * | 2001-12-19 | 2003-06-25 | Böhler Bleche GmbH | Material with high ballistic protection |
EP1386978A2 (en) * | 2002-08-01 | 2004-02-04 | K.B.P. Kettenwerk Becker-Prünte GmbH | High-strength and high-toughness steel |
EP1705257A1 (en) * | 2005-03-24 | 2006-09-27 | Benteler Automobiltechnik GmbH | Armour for vehicle |
DE102008010168A1 (en) * | 2008-02-20 | 2009-08-27 | Benteler Automobiltechnik Gmbh | Armor for a vehicle |
DE102008014914A1 (en) * | 2007-08-23 | 2009-09-24 | Edag Gmbh & Co. Kgaa | Structural element for a vehicle-armor to form e.g. a roof, comprises a ballistic sheet of a steel alloy or layers of different steel alloys or metal |
DE102008054078A1 (en) | 2008-10-31 | 2010-05-06 | Daimler Ag | Armored motor vehicle i.e. car, body, has body frame, body protection elements and mounting parts or fixing parts made of hot working armor steel, where mounting or fixing parts exhibit invariable high heat resistance and warm hardness |
DE102012109693B4 (en) * | 2012-10-11 | 2018-06-28 | Benteler Defense Gmbh & Co. Kg | Use of a steel alloy for the production of a tank component and tank component |
CN109750228A (en) * | 2019-03-04 | 2019-05-14 | 内蒙金属材料研究所 | A kind of rare earth hammer strap and preparation method thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007039998B4 (en) | 2007-08-23 | 2014-05-22 | Benteler Defense Gmbh & Co. Kg | Armor for a vehicle |
EP3321944B1 (en) | 2014-09-17 | 2022-04-06 | Siemens Energy Global GmbH & Co. KG | Bombardment-resistant electrical installation |
CN111996437B (en) * | 2020-07-11 | 2022-05-31 | 江阴兴澄特种钢铁有限公司 | Production method of large-thickness high-toughness ultrahigh-strength steel plate with yield strength of 1100MPa |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4814141A (en) * | 1984-11-28 | 1989-03-21 | Japan As Represented By Director General, Technical Research And Development Institute, Japan Defense Agency | High toughness, ultra-high strength steel having an excellent stress corrosion cracking resistance with a yield stress of not less than 110 kgf/mm2 |
JPH0277521A (en) * | 1988-09-13 | 1990-03-16 | Kawasaki Steel Corp | Production of ultra-high-tension steel sheet for welding having excellent homogeneity in thickness direction |
DE4223895C1 (en) * | 1992-07-21 | 1994-03-17 | Thyssen Stahl Ag | Process for the production of thick armored sheets |
JPH07126739A (en) * | 1993-11-09 | 1995-05-16 | Kobe Steel Ltd | Production of high toughness and high strength steel plate having >=980n/mm2 class tensile strength and low in residual stress |
WO1999009232A1 (en) * | 1997-08-19 | 1999-02-25 | Sms Demag Ag | Metallurgical vessel |
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2000
- 2000-05-08 DK DK00109687T patent/DK1052296T3/en active
- 2000-05-08 EP EP00109687A patent/EP1052296B1/en not_active Expired - Lifetime
- 2000-05-08 ES ES00109687T patent/ES2234476T3/en not_active Expired - Lifetime
- 2000-05-08 DE DE50008938T patent/DE50008938D1/en not_active Expired - Lifetime
- 2000-05-08 AT AT00109687T patent/ATE284977T1/en active
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EP1321535A3 (en) * | 2001-12-19 | 2003-08-13 | Böhler Bleche GmbH | Material with high ballistic protection |
EP1321535A2 (en) * | 2001-12-19 | 2003-06-25 | Böhler Bleche GmbH | Material with high ballistic protection |
EP1386978A2 (en) * | 2002-08-01 | 2004-02-04 | K.B.P. Kettenwerk Becker-Prünte GmbH | High-strength and high-toughness steel |
EP1386978A3 (en) * | 2002-08-01 | 2005-03-02 | K.B.P. Kettenwerk Becker-Prünte GmbH | High-strength and high-toughness steel |
EP1705257A1 (en) * | 2005-03-24 | 2006-09-27 | Benteler Automobiltechnik GmbH | Armour for vehicle |
US7357060B2 (en) | 2005-03-24 | 2008-04-15 | Benteler Automobiltechnik Gmbh | Vehicle armor |
DE102008014914B4 (en) * | 2007-08-23 | 2013-07-04 | Vps Vehicle Protection Systems Gmbh | Structural part for a vehicle armor |
DE102008014914A1 (en) * | 2007-08-23 | 2009-09-24 | Edag Gmbh & Co. Kgaa | Structural element for a vehicle-armor to form e.g. a roof, comprises a ballistic sheet of a steel alloy or layers of different steel alloys or metal |
DE102008010168A1 (en) * | 2008-02-20 | 2009-08-27 | Benteler Automobiltechnik Gmbh | Armor for a vehicle |
DE102008010168B4 (en) * | 2008-02-20 | 2010-04-22 | Benteler Automobiltechnik Gmbh | Armor for a vehicle |
DE102008054078A1 (en) | 2008-10-31 | 2010-05-06 | Daimler Ag | Armored motor vehicle i.e. car, body, has body frame, body protection elements and mounting parts or fixing parts made of hot working armor steel, where mounting or fixing parts exhibit invariable high heat resistance and warm hardness |
DE102012109693B4 (en) * | 2012-10-11 | 2018-06-28 | Benteler Defense Gmbh & Co. Kg | Use of a steel alloy for the production of a tank component and tank component |
CN109750228A (en) * | 2019-03-04 | 2019-05-14 | 内蒙金属材料研究所 | A kind of rare earth hammer strap and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
DE50008938D1 (en) | 2005-01-20 |
EP1052296B1 (en) | 2004-12-15 |
ES2234476T3 (en) | 2005-07-01 |
DK1052296T3 (en) | 2005-04-11 |
EP1052296A3 (en) | 2002-06-26 |
ATE284977T1 (en) | 2005-01-15 |
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