Is it possible a steel to withstand 1600MPa in bending, because i'm a witness of that by applying 260Nm (90kg x 0.3m)bending moment of a shaft Ø12,
It withstood it even without crook.
According to the formula σ = (32.M)/(π.D^3) = 1532MPa
Is that true or I'm wrong in the calculation.
Thanks in advance for your opinion