1.6587 17 CrNiMo 6



It is a case hardening steel.



%C %Si %Mn %P %S %Cr %Mo %Ni  % B
0,14-0,19 0,40 1,00-1,30 0,035 0,035 0,80-1,10

Hot working:

Forging temperature range: 1100-850℃
Note: Heat to 1200 ℃. Do not forge below 850.
Heat treatment:

Soft annealing Heat treatment to obtain a certain structure(

treated for quenching stress)

Heat treatment to obtain a certain tensile strength( treated for ferrite-pearlite microstructure and quenching stress) Carburize Core hardening intermediate annealing Surface hardening Temper
650-700 850-950 900-1000 900-950 840-870 630-650 800-830 170-210


Main application:

Plate wheels, driving pinions and highly stressed cog wheels
Shape of product:

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