RAILWAY CAR BODY Russian patent published in 2011 - IPC B61D17/00 C22C38/26 

FIELD: transport.

SUBSTANCE: invention relates to machine building, namely, to railway car body. Car body comprises carcass with vertical and horizontal stiffness elements, and outer sheathing sheets jointed to carcass and welded together. Outer sheathing sheets are made from rolled sheet stock made from stainless steel of the following compositions, i.e. 0<C<0.08, 0<Mn<2.5, 0<Si<1.0, Cr - 17.0-19.0, Ni - 9.0-11.0, P<0.035, S<0.020, Nb 0<0.25, N - 0.15-0.25, Fe makes the rest of up to 100%, to provided for yield point σ02 of sheet rolled stock of, at least, 300 MPa. Outer sheathing sheets are jointed together by butt arc welding or overlap arc welding, or point arc welding. Rolled sheet stock with sheet thickness varying from 1.5 mm to 2.5 mm is used as outer sheathing sheets.

EFFECT: longer life and higher strength of car sheathing, particularly, yield point at impact loads.

3 cl