EN 10277-2 standard

W.NR.: 1.0540

Non-alloy high grade steel

heat analysis according to the EN 10277-2:1999 standard

C % Si % Mn % P % S % Cr % Ni % Mo % Cr+Mo+Ni %
From 0,47 0,60
To 0,55 0,40 0,90 0,045 0,045 0,40 0,40 0,10 0,63

according to the EN 10277-2:1999 standard

Thickness
mm
Rolled + peeled rolled
( +SH )
Cold drawn
( +C )
hardness  HB Rm (MPa) Rp0,2  minimum Rm (MPa) A5 %
(MPa) minimum
≥5≤10 590 da 770 a 1100 5
>10≤16 520 da 730 a 1080 6
>16≤40 da 181 a 269 da 610 a 910 440 da 690 a 1050 7
>40≤63 da 181 a 269 da 610 a 910 390 da 650 a 1030 8
>63≤100 da 181 a 269 da 610 a 910

* Delivery condition: as rolled.

Weldability:
Not weldable. It can be welded only with particular precautions. It has a bad machinability.

Hardenability:
It has a low hardenability in water or oil; fit for surface hardening that gives this steel grade a high hardness of the hardened shell.

Notes:

CORRESPONDENCE WITH THE OTHER STANDARDS  (purely as an indication):

UNI 7845 DIN 17200 AISI-SAE
 C50  C50 1050

C50.pdf