1.7149 20 MnCrS 5

 

1.7149 Steel is an alloy steel made up for primary forming into wrought products.
 
Composition:

 

%C %Si %Mn %P %S %Cr %Mo %Ni  % B
0,17-0,22 0,40   1,10-1,40 0,035 0,02-0,035 1,00-1,30 – – –

 
Hot working:

Forging temperature range: 1150-850℃
 
Note: Heat to 1200 ℃. Do not forge below 850.
 
Heat treatment:

Soft annealing Heat treatment to obtain a certain structure Heat treatment to obtain a certain tensile strength Carburize Core hardening intermediate annealing Surface hardening Temper
650-700 850-950 900-1000 900-950 850-880   810-840 170-210

 

Main application:

Gear and link components, bevels, plate- and cog wheels
 
Shape of product:

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