Material number 1.1231     -     Ck67 / C67E / C67S

 
Composition in % :

C

Si

Mn

P

S

Cr

Mo

Ni

0,65 - 0,72

0,15 - 0,35

0,60 - 0,90

max. 0,035

max. 0,035

 

 

 

V

W

Ti

Cu

Al

Nb

B

N

 

 

 

 

 

 

 

 


Range of application and heat treatment :

Spring steel : precision springs 
Hardening : 815 - 845 °C (oil)          Soft annealing : 650 - 690 °C          Normalising : 820 - 850 °C 

General and distinctive features :

 
 

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