EP1052296B1 - Verwendung eines Stahls zur Herstellung von Panzerblech - Google Patents
Verwendung eines Stahls zur Herstellung von Panzerblech Download PDFInfo
- Publication number
- EP1052296B1 EP1052296B1 EP00109687A EP00109687A EP1052296B1 EP 1052296 B1 EP1052296 B1 EP 1052296B1 EP 00109687 A EP00109687 A EP 00109687A EP 00109687 A EP00109687 A EP 00109687A EP 1052296 B1 EP1052296 B1 EP 1052296B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- use according
- sheet
- microstructure
- armor plate
- 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.)
- Expired - Lifetime
Links
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 the use of a steel for Production of hot-rolled armored sheet.
- 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 which is as little as possible below the crack hardness, is set.
- These well-known armor plates are characterized by a homogeneous structure as well as high hardness and bullet resistance even with a large thickness. 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 one for Manufacture of steel sheet suitable for armor to propose, the one produced from this steel Armored sheet metal on the one hand with regard to bullet resistance properties at least as good as the armor plates of the on the other hand improved material properties, such as a higher one Yield strength, higher strength at the same time higher toughness and improved weldability having.
- the invention proposes the use of a (in mass%) 0.15 - 0.2% C 0.1 - 0.5% Si 0.7 - 1.7% Mn ⁇ 0.02% P ⁇ 0.005% S ⁇ 0.01% N 0.009 - 0.1% al 0.5 - 1.0% Cr 0.2 - 0.7% Mo 1.0 - 2.5% Ni 0.05 - 0.25% V Rest of iron including unavoidable impurities, steel for the production of armored sheet, which has a tempering structure and a yield strength> 1100 N / mm 2 , a hardness> 400 HB and a notched impact strength A v of at least 27 joules measured on an ISO-V cross-test at -40 ° C having.
- a steel alloy of the following composition (in mass%) is preferred within the composition range used according to the invention: 0.16 - 0.18% C 0.2 - 0.4% Si 0.9 - 1.1% Mn ⁇ 0.015% P ⁇ 0.005% S ⁇ 0.008% N 0.015 - 0.05% al 0.6 - 0.8% Cr 0.5 - 0.6% Mo 1.9 - 2.0% Ni 0.06 - 0.1% V Balance Fe including unavoidable impurities.
- 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 steel alloy used according to the new use stands out compared to the above known steel alloy on the one hand by a lower carbon content and secondly through the Carbonitride former vanadium as a precipitation hardening agent Element off.
- 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 sheet produced according to the invention preferably a predominantly martenistic structure a fine grain. Particularly good ones Material properties arise when the proportion of martensitic structure is at least 98%.
- room temperature i.e. to 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 preferred for the rapid cooling Pressurized water is used.
- an invention composite usually in heavy plate thickness executed sheet metal in the course of its remuneration up to cooled its core 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 above mentions excellent properties and meets the requirements Sheets of the type in question reliable.
- 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 Aging 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 The properties of the armored sheet obtained are in Table 2 compiled.
Description
0,15 - 0,2 % | C |
0,1 - 0,5 % | Si |
0,7 - 1,7 % | Mn |
< 0,02 % | P |
< 0,005% | S |
< 0,01 % | N |
0,009 - 0,1 % | Al |
0,5 - 1,0 % | Cr |
0,2 - 0,7 % | Mo |
1,0 - 2,5 % | Ni |
0,05 - 0,25 % | V |
aufweisenden Stahls für die Herstellung von Panzerblech vor, welcher ein Vergütungsgefüge besitzt und eine Streckgrenze > 1100 N/mm2, eine Härte > 400 HB und eine an einer ISO-V-Querprobe bei -40 °C gemessene Kerbschlagzähigkeit Av von mindestens 27 Joule aufweist.
0,16 - 0,18 % | C |
0,2 - 0,4 % | Si |
0,9 - 1,1 % | Mn |
< 0,015 % | P |
< 0,005 % | S |
< 0,008 % | N |
0,015 - 0,05 % | Al |
0,6 - 0,8 % | Cr |
0,5 - 0,6 % | Mo |
1,9 - 2,0 % | Ni |
0,06 - 0,1 % | V |
C | Si | Mn | P | S | Al | Cr | Mo | Ni | V |
0,16 | 0,29 | 0,98 | 0,012 | 0,003 | 0,025 | 0,66 | 0,51 | 1,93 | 0,07 |
Blech Nr. | Dicke (mm) | Re (N/mm2) | Rm (N/mm2) | A (%) | ISO-V-quer -40°C | Härte HB10/3000 |
1 | 10 | 1125 | 1339 | 10,9 | 35,32,28 | 415 |
2 | 10 | 1166 | 1386 | 12,0 | 39,39,39 | 420 |
3 | 40 | 1124 | 1345 | 11,0 | 28,35,29 | 412 |
4 | 50 | 1120 | 1317 | 11,7 | 42,38,34 | 408 |
Claims (5)
- Verwendung eines (in Masse-%)
0,15 bis 0,20 % C 0,10 bis 0,50 % Si 0,70 bis 1,70 % Mn < 0,02 % P < 0,005 % S < 0,01 % N 0,009 bis 0,10 % Al 0,50 bis 1,00 % Cr 0,20 bis 0,70 % Mo 1,00 bis 2,50 % Ni 0,05 bis 0,25 % V, bis 0,0050 % B,
aufweisenden Stahls für die Herstellung von Panzerblech, welcher ein Vergütungsgefüge, eine Streckgrenze > 1100 N/mm2, eine Härte > 400 HB und eine an einer ISO-V-Querprobe bei -40 °C gemessene Kerbschlagzähigkeit Av von mindestens 27 Joule aufweist. - Verwendung nach Anspruch 1, dadurch gekennzeichnet, daß die Stahllegierung (in Masse-%)
0,16 bis 0,18 % C 0,20 bis 0,40 % Si 0,90 bis 1,10 % Mn < 0,015 % P < 0,005 % S < 0,008 % N 0,015 bis 0,050 % Al 0,60 bis 0,80 % Cr 0,50 bis 0,60 % Mo 1,90 bis 2,00 % Ni 0,06 bis 0,10 % V
enthält. - Verwendung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Stickstoffgehalt der Stahllegierung auf 0,0040 bis 0,0080 % begrenzt ist.
- Verwendung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Panzerblech ein überwiegend martensitisches Gefüge besitzt.
- Verwendung nach Anspruch 4, dadurch gekennzeichnet, daß der Martensitanteil des Gefüges mindestens 98 % beträgt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK00109687T DK1052296T3 (da) | 1999-05-08 | 2000-05-08 | Anvendelse af et stål til fremstilling af panserplader |
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 EP1052296A2 (de) | 2000-11-15 |
EP1052296A3 EP1052296A3 (de) | 2002-06-26 |
EP1052296B1 true EP1052296B1 (de) | 2004-12-15 |
Family
ID=7907466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00109687A Expired - Lifetime EP1052296B1 (de) | 1999-05-08 | 2000-05-08 | Verwendung eines Stahls zur Herstellung von Panzerblech |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1052296B1 (de) |
AT (1) | ATE284977T1 (de) |
DE (1) | DE50008938D1 (de) |
DK (1) | DK1052296T3 (de) |
ES (1) | ES2234476T3 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1705257A1 (de) | 2005-03-24 | 2006-09-27 | Benteler Automobiltechnik GmbH | Panzerung für ein Fahrzeug |
EP2028435A1 (de) | 2007-08-23 | 2009-02-25 | Benteler Automobiltechnik GmbH | Panzerung für ein Fahrzeug |
CN111996437A (zh) * | 2020-07-11 | 2020-11-27 | 江阴兴澄特种钢铁有限公司 | 一种大厚度高韧性屈服强度1100MPa级超高强钢板的生产方法 |
EP3321944B1 (de) | 2014-09-17 | 2022-04-06 | Siemens Energy Global GmbH & Co. KG | Beschussbeständige elektrische anlage |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2238556T3 (es) * | 2001-12-19 | 2005-09-01 | Bohler Bleche Gmbh | Material con alta proteccion anti-balas. |
DE10235219A1 (de) * | 2002-08-01 | 2004-02-19 | K.B.P. Kettenwerk Becker-Prünte Gmbh | Stahl mit hoher Festigkeit und gleichzeitig guter Zähigkeit |
DE102008014914B4 (de) * | 2007-08-23 | 2013-07-04 | Vps Vehicle Protection Systems Gmbh | Strukturteil für eine Fahrzeug-Panzerung |
DE102008010168B4 (de) * | 2008-02-20 | 2010-04-22 | Benteler Automobiltechnik Gmbh | Panzerung für ein Fahrzeug |
DE102008054078A1 (de) | 2008-10-31 | 2010-05-06 | Daimler Ag | Kraftfahrzeugkarosserie aus verschiedenen Stählen |
DE102012109693B4 (de) * | 2012-10-11 | 2018-06-28 | Benteler Defense Gmbh & Co. Kg | Verwendung einer Stahllegierung zur Herstellung eines Panzerbauteils und Panzerbauteil |
CN109750228A (zh) * | 2019-03-04 | 2019-05-14 | 内蒙金属材料研究所 | 一种稀土抗冲击钢板及其制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61130462A (ja) * | 1984-11-28 | 1986-06-18 | Tech Res & Dev Inst Of Japan Def Agency | 降伏応力110kgf/mm↑2以上の耐応力腐蝕割れ性のすぐれた高靭性超高張力鋼 |
JPH0670248B2 (ja) * | 1988-09-13 | 1994-09-07 | 川崎製鉄株式会社 | 板厚方向の均質性に優れた溶接用超高張力鋼板の製造方法 |
DE4223895C1 (de) * | 1992-07-21 | 1994-03-17 | Thyssen Stahl Ag | Verfahren zur Herstellung von dicken Panzerblechen |
JPH07126739A (ja) * | 1993-11-09 | 1995-05-16 | Kobe Steel Ltd | 引張強さが980N/mm2級以上の残留応力の低い高靱性高張力鋼板の製造方法 |
DE19736720C1 (de) * | 1997-08-19 | 1999-05-06 | Mannesmann Ag | Metallurgisches Gefäß |
-
2000
- 2000-05-08 DE DE50008938T patent/DE50008938D1/de not_active Expired - Lifetime
- 2000-05-08 ES ES00109687T patent/ES2234476T3/es not_active Expired - Lifetime
- 2000-05-08 EP EP00109687A patent/EP1052296B1/de not_active Expired - Lifetime
- 2000-05-08 DK DK00109687T patent/DK1052296T3/da active
- 2000-05-08 AT AT00109687T patent/ATE284977T1/de active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1705257A1 (de) | 2005-03-24 | 2006-09-27 | Benteler Automobiltechnik GmbH | Panzerung für ein Fahrzeug |
DE102005014298A1 (de) * | 2005-03-24 | 2006-10-05 | Benteler Automobiltechnik Gmbh | Panzerung für ein Fahrzeug |
DE102005014298B4 (de) * | 2005-03-24 | 2006-11-30 | Benteler Automobiltechnik Gmbh | Panzerung für ein Fahrzeug |
EP2028435A1 (de) | 2007-08-23 | 2009-02-25 | Benteler Automobiltechnik GmbH | Panzerung für ein Fahrzeug |
DE102007039998A1 (de) | 2007-08-23 | 2009-02-26 | Benteler Automobiltechnik Gmbh | Panzerung für ein Fahrzeug |
EP3321944B1 (de) | 2014-09-17 | 2022-04-06 | Siemens Energy Global GmbH & Co. KG | Beschussbeständige elektrische anlage |
CN111996437A (zh) * | 2020-07-11 | 2020-11-27 | 江阴兴澄特种钢铁有限公司 | 一种大厚度高韧性屈服强度1100MPa级超高强钢板的生产方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1052296A3 (de) | 2002-06-26 |
DE50008938D1 (de) | 2005-01-20 |
DK1052296T3 (da) | 2005-04-11 |
EP1052296A2 (de) | 2000-11-15 |
ATE284977T1 (de) | 2005-01-15 |
ES2234476T3 (es) | 2005-07-01 |
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