EP1321535B1 - Wekstoff mit hoher ballistischer Schutzwirkung - Google Patents

Wekstoff mit hoher ballistischer Schutzwirkung Download PDF

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Publication number
EP1321535B1
EP1321535B1 EP02450278A EP02450278A EP1321535B1 EP 1321535 B1 EP1321535 B1 EP 1321535B1 EP 02450278 A EP02450278 A EP 02450278A EP 02450278 A EP02450278 A EP 02450278A EP 1321535 B1 EP1321535 B1 EP 1321535B1
Authority
EP
European Patent Office
Prior art keywords
weight
alloy
carbon
molybdenum
proviso
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
Application number
EP02450278A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1321535A3 (de
EP1321535A2 (de
Inventor
Horst Saiger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine Boehler Bleche GmbH
Original Assignee
Voestalpine Boehler Bleche GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from AT19912001A external-priority patent/AT411268B/de
Priority claimed from AT19922001A external-priority patent/AT411267B/de
Application filed by Voestalpine Boehler Bleche GmbH filed Critical Voestalpine Boehler Bleche GmbH
Priority to AT02450278T priority Critical patent/ATE291647T1/de
Publication of EP1321535A2 publication Critical patent/EP1321535A2/de
Publication of EP1321535A3 publication Critical patent/EP1321535A3/de
Application granted granted Critical
Publication of EP1321535B1 publication Critical patent/EP1321535B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • 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

Definitions

  • the invention relates to the use of a steel alloys as Material for ballistic protection bidding sheets.
  • a ballistic protective effect of objects, in particular of such laminar material is generally characterized by their safety against a breakdown of projectiles and splinters in high-energy Weapon action, with increasingly high protection and at the same time a reduced weight of the article or part with improved Economy of the provision are required.
  • EP-A-180805 discloses a steel helmet from a low alloyed boron steel, wherein the steel helmet is sandblasted after tempering.
  • a tank sheet with compensation structure which has a yield strength of> 1100 N / mm 2 and a hardness of> 400 HB and at a carbon content in wt .-% of 0.15 to 0.2 im Substantially 1 to 2% by weight of chromium (Cr), 0.2 to 0.7% by weight of molybdenum (Mo), 1.0 to 2.5% by weight of nickel (Ni), 0.05 to 0 , 25% by weight of vanadium (V), balance iron (Fe).
  • Cr chromium
  • Mo molybdenum
  • Ni nickel
  • V vanadium
  • Fe balance iron
  • FR-A-2106939 describes an armor consisting of two sheets.
  • the one ballistic protective effect exhibiting sheet metal part in percent by weight 0.3-1% C; 0.5-1% Si; 0.1-1% Mn; 3-10% Cr; 0.5-3% Mo and 0.2-1% V up.
  • EP-A-580062 A process for producing thick armor plates is known from EP-A-580062 become known, in which above, increased in carbon and nickel content Alloy in slab form initially heated to a temperature of over 1150 ° C, increasingly allowed to cool and in the range of 1050 to 900 ° C, each with a high Forming degree is rolled to the final thickness.
  • EP-B-731332 is a steel armor plate with improved penetration resistance described in relation to projectiles, which have a large number of inclusions in the Oriented substantially parallel to the plate surface and in a quarter to three Quarter of the plate thickness are concentrated.
  • the liner not only facilitates the plating of the Base material but also prevents chipping of the support material, although it can be quenched to a hardness of 55 to 60 HRC, but apparently has low toughness.
  • the invention wants to create Abhillfe and sets itself the goal, materials indicate from which sheets with high ballistic protective effect low weight, economically produced in a simple manner. These Sheets are said to have a high projectile or flight-breaking effect possess, consist of an iron-based alloy, by a heat treatment or thermal compensation adjustable toughness and strength properties having both property characteristics maximized.
  • Materials Technical are a composite production or a multi-layer part production and a Surface hardening possible and given a weldability.
  • Iron (Fe) and impurities as the remainder, with the proviso that the value for the content of phosphorus (P) plus sulfur (S) is less than 0.025, P + S ⁇ 0.025 wt% the concentration of nickel (Ni) is below 0.28 Ni ⁇ 0.28% by weight and the sum of the grain boundary elements arsenic (As), Antimony (Sb), bismuth (Bi), tin (Sn), zinc (Zn) and boron (B) is less than 0.011 As + Sb + Bi + Sn + Zn + B ⁇ 0.011 wt% as a material for the aforementioned sheets.
  • one or more element (s) has the concentration (s) in% by weight: Carbon (C) 0.36 to 0.64, preferably 0.41 to 0.58 Silicon (Si) 0.36 to 0.9, preferably 0.41 to 0.68 Manganese (Mn) 0.36 to 0.7, preferably 0.41 to 0.59 Chrome (Cr) 1.7 to 5.95, preferably 2.61 to 5.2 Molybdenum (Mo) 1.05 to 2.9, preferably 1.3 to 2.7 Vanadin (V) 0.36 to 1.25, preferably 0.39 to 0.83 Superior results are achieved in the bombardment test.
  • Carbon (C) 0.36 to 0.64 preferably 0.41 to 0.58 Silicon (Si) 0.36 to 0.9, preferably 0.41 to 0.68
  • Mn Manganese
  • Cr Chrome
  • Molybdenum (Mo) 1.05 to 2.9 preferably 1.3 to 2.7 Vanadin (V) 0.36 to 1.25, preferably 0.39 to 0.83 Superior results are achieved in the bombardment test.
  • the material has the technical specifications that it has a strength of greater than 1800 N / mm, preferably greater than 2000 N / mm 2 , in particular greater than 2100 N / mm 2 , with a toughness at room temperature greater than SEP 150 J. , preferably greater than 185 J, in particular of about 245 J as measured by (S e teel isen rüfblatt P) in September 1314, has the highest breakdown products resistors and the like are the same strength achievable at low alloy cost.
  • a sheet of Cr-Mo-V steel which has been ladle metallurgically treated and vacuum degassed, having a composition in wt% of 0.45 carbon (C), 0.62 silicon (Si), 0.64 manganese (Mn) , 0.016 phosphorus (P), 0.007 sulfur (S), 3.35 chromium (Cr), 1.62 molybdenum (Mo), 0.32 vanadium (V) was rolled from a slab block to a thickness of 7.5 mm. From the sheets samples were made, the same tempered and tested with different technologies. Table 1 shows the tempering parameters and the mechanical values achieved. Sample No. Härtetemp.
  • Fig. 1 the percentage of retained shots in dependence on Sheet thickness shown. From a plate thickness of 6 mm upwards is the same energetic conditions of shelling the proportion of shots held from a martensitic and hardening steel according to the invention manufactured sheet practically the same.
  • the profitability is to determine that the material of the invention has an alloy content of about 6%, that of the martensitic hardening steel (comparative material) has 41.5% and thus has significantly higher costs.
  • Iron (Fe) and impurities as the remainder, with the proviso that the value for the content of phosphorus (P) plus sulfur (S) is less than 0.025, P + S ⁇ 0.025 wt% the concentration of molybdenum (Mo) is less than 0.34 and that of tungsten (W) is less than 0.29, with the sum of molybdenum (Mo) plus tungsten (W) not exceeding two 0.38.
  • the alloy wherein one or more element (s) thereof has the concentration (s) in% by weight: Carbon (C) 0.3 to 0.54, preferably 0.41 to 0.49 Silicon (Si) 0.11 to 0.39 Manganese (Mn) 0.18 to 0.49, preferably 0.25 to 0.38 Chrome (Cr) 1.15 to 1.4 Nickel (Ni) 2.9 to 4.9, preferably 2.56 to 3.9 for use as a material for the above-mentioned products, improved properties thereof can be achieved in the bombardment test. It should also be noted at this point that a further increase in the property level is achieved by lowering the sulfur content below 0.005% by weight.
  • inventively achieved advantageous material properties are increasingly pronounced in a bombardment pronounced when the parts are coated to higher strength values of about 1900 N / mm 2 .
  • This is also due to the fact that a narrower range of the concentration of each alloying element interacts favorably with the other constituents of the alloy to favor the conversion and formation of the microstructure of the material in the thermal anneal, thereby improving the onset and tempering performance and so on extensive isotropy with low residual stresses.
  • this a strength of greater than 1800 N / mm 2 , preferably greater than 2000 N / mm 2 , in particular of about 2100 N / mm 2 , with a toughness at room temperature greater than SEP 150 J, preferably having greater than 185 J, in particular of about 245 J as measured by (S e teel isen rüfblatt P) in September 1314, are buildable sheets therefrom with the highest breakdown resistance.
  • FIG. 2 again shows the percentage of held shots depending on the sheet material thickness.
  • a sheet made of pan-metallurgically treated steel having a composition in wt.% Of 0.52 carbon (C), 0.12 silicon (Si), 0.22 manganese (Mn), 0.014 phosphorus (P), 0.003 sulfur ( S), 1.42 chromium (Cr), 0.11 molybdenum (Mo), 0.09 tungsten (W), 0.004 (As + Sb + Bi + Sn + Zn + B), which was subsequently electroslag remelted with a thickness made of 7.5 mm and tempered to a hardness of 57 HRC, yielded at a hardening temperature of 880 ° C and air cooling after tempering at 200 ° C, a yield strength of the material of Rm 2265 N / mm 2 at a notch impact of average 202 J. In the bombardment test in comparison with tempered carbon steel under otherwise identical conditions, a 68.7% higher number of retained shots was recorded.
  • a comparison of inventive Sheets and such from each of the highest values tempered carbon steel and martensite hardening steel using a bombardment test is the Percentage of retained shots as a function of the sheet thickness shown. From a sheet thickness of 5 mm to a thickness of 10 mm proportionally those of martensitaushärtbarem steel and of the Shoots held according to the invention are substantially equal to minor ones Advantages of the material according to the invention in the range over a sheet thickness of 6 mm.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)
  • Heat Treatment Of Steel (AREA)
  • Powder Metallurgy (AREA)
EP02450278A 2001-12-19 2002-12-09 Wekstoff mit hoher ballistischer Schutzwirkung Expired - Lifetime EP1321535B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT02450278T ATE291647T1 (de) 2001-12-19 2002-12-09 Wekstoff mit hoher ballistischer schutzwirkung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT19912001A AT411268B (de) 2001-12-19 2001-12-19 Werkstoff mit hoher ballistischer schutzwirkung
AT199201 2001-12-19
AT19922001A AT411267B (de) 2001-12-19 2001-12-19 Werkstoff mit hoher ballistischer schutzwirkung
AT199101 2001-12-19

Publications (3)

Publication Number Publication Date
EP1321535A2 EP1321535A2 (de) 2003-06-25
EP1321535A3 EP1321535A3 (de) 2003-08-13
EP1321535B1 true EP1321535B1 (de) 2005-03-23

Family

ID=25608562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02450278A Expired - Lifetime EP1321535B1 (de) 2001-12-19 2002-12-09 Wekstoff mit hoher ballistischer Schutzwirkung

Country Status (6)

Country Link
US (2) US20040031353A1 (es)
EP (1) EP1321535B1 (es)
BR (1) BR0205411A (es)
CA (1) CA2414305C (es)
DE (1) DE50202536D1 (es)
ES (1) ES2238556T3 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008014914B4 (de) * 2007-08-23 2013-07-04 Vps Vehicle Protection Systems Gmbh Strukturteil für eine Fahrzeug-Panzerung
DE102007039993A1 (de) * 2007-08-23 2009-02-26 Edag Gmbh & Co. Kgaa Strukturteil für eine Fahrzeug-Panzerung
WO2010042260A2 (en) * 2008-07-11 2010-04-15 Safariland, L Lc Vacuum sealed protective cover for ballistic panel
DE102008052632A1 (de) * 2008-10-22 2010-05-27 Benteler Automobiltechnik Gmbh Sicherungsschrank
JP5672255B2 (ja) 2012-02-21 2015-02-18 新日鐵住金株式会社 鍛鋼ロールの製造方法
DE102019116363A1 (de) 2019-06-17 2020-12-17 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Panzerungsbauteils für Kraftfahrzeuge
CN118222798A (zh) * 2024-05-24 2024-06-21 成都先进金属材料产业技术研究院股份有限公司 一种uns n08367合金板材及其制备方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB577133A (en) * 1940-04-12 1946-05-07 William Herbert Hatfield A process for improving the properties of iron alloy castings
DE1207635B (de) * 1959-10-13 1965-12-23 Deutsche Edelstahlwerke Ag Verwendung einer Stahllegierung als Werkstoff fuer Helme
FR2106939A5 (en) * 1970-09-30 1972-05-05 Creusot Forges Ateliers Weldable clad steel sheet - for armour plate
US3694174A (en) * 1971-05-13 1972-09-26 Us Army Dual property steel armor
DE2921854C1 (de) * 1979-05-30 1990-11-15 Thyssen Ind Ag Maschb Verfahren zum Herstellen einer aus Mehrlagenstahl bestehenden Panzerung
FR2509640A1 (fr) * 1981-07-17 1983-01-21 Creusot Loire Procede de fabrication d'une piece metallique composite et produits obtenus
DE3340031C2 (de) * 1983-11-05 1985-11-21 Thyssen Stahl AG, 4100 Duisburg Panzerblech und Verfahren zu seiner Herstellung
ATA109386A (de) * 1986-04-23 1993-06-15 Voest Alpine Stahl Linz Panzerblech
FR2619577B1 (fr) * 1987-08-17 1993-02-19 Aubert & Duval Acieries Composition d'acier au silicium-chrome-molybdene-vanadium et son application aux noyaux perforants de projectiles anti-blindages
FR2652821B1 (fr) * 1989-10-09 1994-02-18 Creusot Loire Industrie Acier de haute durete pour blindage et procede d'elaboration d'un tel acier.
DE4223895C1 (de) * 1992-07-21 1994-03-17 Thyssen Stahl Ag Verfahren zur Herstellung von dicken Panzerblechen
US5749140A (en) * 1995-03-06 1998-05-12 Allegheny Ludlum Corporation Ballistic resistant metal armor plate
JP2000080444A (ja) * 1998-08-31 2000-03-21 Sumitomo Heavy Ind Ltd 銃砲身用合金鋼
DE50008938D1 (de) * 1999-05-08 2005-01-20 Thyssenkrupp Stahl Ag Verwendung eines Stahls zur Herstellung von Panzerblech
DE19921961C1 (de) * 1999-05-11 2001-02-01 Dillinger Huettenwerke Ag Verfahren zum Herstellen eines Verbundstahlbleches, insbesondere zum Schutz von Fahrzeugen gegen Beschuß
DE10111304C2 (de) * 2001-03-09 2003-03-20 Buderus Edelstahlwerke Ag Verfahren zur Herstellung von Rohren für schwere Geschütze

Also Published As

Publication number Publication date
EP1321535A3 (de) 2003-08-13
CA2414305A1 (en) 2003-06-19
US20080181807A1 (en) 2008-07-31
ES2238556T3 (es) 2005-09-01
BR0205411A (pt) 2004-07-20
DE50202536D1 (de) 2005-04-28
US20040031353A1 (en) 2004-02-19
CA2414305C (en) 2006-08-15
EP1321535A2 (de) 2003-06-25

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