EN 10277-4 standard

W.NR.: 1.1207

Special non-alloy case-hardening steel

heat analysis according to the EN 10277-4 standard

  C % Si % Mn % P % S %
From 0,07 0,30 0,020
To 0,13 0,40 0,60 0,035 0,040

according to the EN 10277-4 standard

Thickness
mm
rolled + peeled rolled
(+SH )
cold drawn
( +C )
hardness HB Rm (MPa) Rp0,2  minimum Rm (MPa) A5 %
(MPa) minimum
≥5≤10 350 da 460 a 760 8
>10≤16 300 da 430 a 730 9
>16≤40 da 92 a 163 da 310 a 550 250 da 400 a 700 10
>40≤63 da 92 a 163 da 310 a 550 200 da 350 a 640 12
>63≤100 da 92 a 163 da 310 a 550 180 da 320 a 580 12

* Delivery condition: as rolled.

Weldability:
It is a soft carbon-steel, easily cold machinable and weldable without any particular precautions.

Improved machinability:
Upon request it can be supplied with improved machinability with Pb (lead) addition, for example
Pb=0,15%÷0,35%

Notes:

CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication):

UNI 7846 DIN 17210 ISO 683-11 AFNOR 35-551
 C10  CK10  C10  XC10

C10R.pdf