1.6511 40XH2MA


It is normally heat treated by quenching in oil and tempering to the desired hardness. Depending on the precise carbon content, as-quenched hardness ranges from 54 to 59 HRC.



%C %Si %Mn %P %S Cr Mo Ni other
0.37-0.44 0.17-0.37 0.5-0.8 Max0.025 Max0.025 0.6-0.9 0.15-0.25 1.25-1.65 Cu;max0.3


Hot working:

Forging temperature range: 1230-850℃

Note: Heat to 1230 ℃. Do not forge below 850.

Heat treatment:

Soft annealing ℃ Normalizing ℃ Hardening temperature ℃
590-660 845-900 830-855


Main application:

Structural components for heavy demands

Shape of product:

Round, flat, step shape, ring, disc, shaft, other shape depend on customer needs