1.7228 50CrMo4

 

This grade is medium-hardenability, chromium-molybdenum  steel, which is available as hot worked and cold rolled sheet and strip, and hot worked  and cold finished bar and rod. This grade is used primarily for gears and other parts requiring fairly high hardness, as well as strength and toughness.

 

 
Composition:

 

%C %Si %Mn %P %S Cr Mo Ni other
0,46-0,54 ≤0,40 0,50-0,80 0,035 0,035 0,90-1,20 0,15-0,30 – –

 

Hot working:

Forging temperature range: 1220-850℃

Note: Heat to 1220 ℃. Do not forge below 850.

Heat treatment:

Soft annealing ℃ HB 30-soft annealed Normalizing ℃ Hardening temperature for quenching in Water ℃ Hardening temperature for quenching in Oil ℃ Tempering temperature ℃
680-720 248 840-880 820-850 830-860 540-680

 

Main application:

Bushes, arbors, control components, links

Shape of product:

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