LAMINATED PROTECTIVE ARMOUR MATERIAL Russian patent published in 2011 - IPC B32B15/18 C22C38/46 F41H5/04 F41H1/02 

FIELD: metallurgy.

SUBSTANCE: laminated protective armour material consists at least of two layers - front and rear one. Front layer is made from steel of the following composition, wt %: carbon 0.28 - 0.55, silicon 0.15 - 0.30, manganese 0.20 - 0.30, chrome 0.30 - 0.60, nickel 0.80 - 1.10, molybdenum 0.10 - 0.30, vanadium 0.05 - 0.15, and iron is the rest. Rear layer is made from steel of the following composition, wt %: carbon 0.15 - 0.27, silicon 0.30 - 0.60, manganese 0.20 - 0.30, chrome 0.70 - 1.10, nickel 0.80 - 1.10, molybdenum 0.10 - 0.30, vanadium 0.10 - 0.25, and iron is the rest.

EFFECT: improving armour protective property of material at simultaneous reduction of thickness of layers.

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