1.6511 39NiCrMo4

 

1.6511 is a medium-carbon steel. This steel does not age hardened. Core properties of 1.6511 is produced by conventional quenching and tempering. Case hardness lower than the nickel-aluminum steel may be developed.
 
Composition:

 

%C %Si %Mn %P %S Cr Mo Ni
0.32-0.40 Max 0.4 0.5-0.8 Max 0.035 Max 0.035 0.9-1.2 0.15-0.3 0.9-1.2

 

Hot working:

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

Annealing ℃ Normalizing ℃ Hardening temperature Tempering temperature ℃
790-845 845-900 830-855 To desired hardness

 

Main application:

Wire, and seamless mechanical tubing
 
Shape of product:

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