The invention concerns a method for continuously casting a ferritic stainless steep strip with thickness not more than 10 mm directly from liquid metal between two cooled rolls with horizontal axes and driven in rotation, characterized in that: the liquid metal composition in weight percentages is as follows: % C+% N.ltoreq.0.12; % Mn.ltoreq.1; % P.ltoreq.0.4; % Si.ltoreq.1; % Mo.ltoreq.2.5; % Cr between 11 and 19; A1.ltoreq.1%; % Ti+%Nb+% Zr.ltoreq.1; the rest being iron and the impurities resulting from preparation; the .UPSILON..sub.p index of the liquid metal ranges between 35% and 60%, .UPSILON..sub.p being defined by the formula: .gamma..sub.p =420% C+470% N+23% Ni+9% Cu+7% Mn 11.5% Cr 11.5% Si 12% Mo 23% V 47% Nb 49% Ti 52% A1+189: the surface roughness of said rolls being more than 5 .mu.m; in the proximity of the meniscus metal liquid present between the rolls an inerting gas is used consisting of at least 60% by volume of a gas soluble in steel.