EN 10277-5 standard

W.NR.: 1.7227

Special alloy steel

analysis according to the EN 10277-5 standard

  C % Si % Mn % P % S % Cr % Mo %
From 0,38 0,60 0,020 0,90 0,15
To 0,45 0,40 0,90 0,025 0,040 1,20 0,30

according to the EN 10277-5 standard

Thickness
mm
annealed + cold drawn
( +A+C )
hardness HB max
≥5≤10 300
>10≤16 290
>16≤40 285
>40≤63 280
>63≤100 280

* Delivery condition: soft annealed.

Weldability:
Bad weldability due to the high crack danger.

Hardenability:
Medium-good hardenability, suitable for hot purposes till a temperature of 500°.
It can be hardened in oil.

Notes:

CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication):

 

UNI 7845 DIN 17200 ISO 683-1 AFNOR 35-552 AISI-SAE
 42CrMo4  42CrMoS4  42CrMoS4  42CD4u 4140

42CrMoS4.pdf