VEHICLE DOOR OF ARMOR STEEL

A vehicle door includes a window frame and a lower surface portion formed jointly with the window frame in one piece from a hot formed and press hardened sheet metal plate which is made of a steel alloy which includes, in weight-%: Carbon 0.33-0.38, Silicon 0.2-0.7, Manganese 0.7-1.2, Phosphorus max...

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Bibliographische Detailangaben
Hauptverfasser:	KLASFAUSEWEH, UDO, Holzweissig, Martin
Format:	Patent
Sprache:	eng
Schlagworte:	ARMOUR ARMOURED OR ARMED VEHICLES ARMOURED TURRETS BLASTING HEATING LIGHTING MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES TRANSPORTING VEHICLES IN GENERAL WEAPONS WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES
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Beschreibung
Zusammenfassung:	A vehicle door includes a window frame and a lower surface portion formed jointly with the window frame in one piece from a hot formed and press hardened sheet metal plate which is made of a steel alloy which includes, in weight-%: Carbon 0.33-0.38, Silicon 0.2-0.7, Manganese 0.7-1.2, Phosphorus max. 0.03, Sulfur max. 0.02, Boron 0.002-0.005, Chromium 0.6-1.0, Copper max. 0.12, Nitrogen max. 0.005, Titanium 0.015-0.025, Nickel 1.5-2.0, Molybdenum 0.2-0.6, Tin max. 0.04, and as optional components Aluminum 0.006-0.08, Niobium 0.02-0.05, with a balance being iron and incidental impurities. At least the lower surface portion has a Brinell hardness of 500 to 600 HB and a yield strength of 1,200 to 1,450 MPa, wherein the lower surface portion and/or the window frame has a wall thickness of at least 6 mm.