| abstract |
The present invention relates to a ferrite material which contains C, Si, Mn, P, S, Al, N and Cr, the balance being iron and unavoidable impurities, the metal structure having perlite and pro- Wherein the area ratio A of pro-eutectoid ferrite has a relation of Ae represented by the following formula 1 to A> Ae and the average particle size of the pro-eutectoid ferrite and the ferrite in the pearlite is 15 to 25 μm It is a structural steel for cold working. [Formula 1] In the formula (1), Ceq = [C] + 0.1 x [Si] + 0.06 x [Mn] + 0.11 x [Cr] . |