forging steel AISI 4140/DIN1.7225 :

1.Chemical Composition:

   C:0.42, Si:0.30, Mn:0.60, Cr:1.00, Mo:0.20, P≤0.025,   S≤0.025,   Ni≤0.25

2.Size:

    For round bar,Dia:8-605mm;Length 1600-6000mm or fixed length as per your requirement.

3.100% UT test and MTC is workable for you !