EN 10083-3 standard

W.NR.: 1.7220

Special alloy steel

analysis according to the EN 10083-3 standard

  C % Si % Mn % P % S % Cr % Mo %
From 0,30 0,60 0,90 0,15
To 0,37 0,40 0,90 0,025 0,035 1,20 0,30

according to the UNI 10233-5 standard

Thickness mm annealed + cold drawn
( +A+C )
hardness HB max
≥5≤10 290
>10≤16 280
>16≤40 275
>40≤100 270

* Delivery condition: soft annealed.

Weldability:
Low weldability; this steel grade can be welded only with suitable precautions.

Hardenability:
Steel grade with medium carbon content showing a poor hardenability; sensitive to notching and to quenching cracks.

Notes:

CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication) :

UNI 7845 DIN 17200 ISO 683-1 AFNOR 35-552 AISI-SAE
 35CrMo4  34CrMo4  34CrMo4  34CD4 4135

34CrMo4.pdf