EN 10277:2018 standard

W.NR.: 1.0503

Non-alloy high-grade steel

heat analysis according to the EN ISO 683-1:2018 standard

  C % Si % Mn % P % S % Cr % Ni % Mo % Cu % Cr+Mo+Ni %
From 0,42 0,10 0,50
To 0,50 0,40 0,80 0,045 0,045 0,40 0,40 0,10 0,30 0,63

according to the EN 10277:2018 standard

Thickness
mm
Rolled + peeled rolled
( +SH )
Cold drawn
( +C )
hardness HB Rm (MPa) Rp0,2  minimum Rm (MPa) A5 %
(MPa) minimum
≥5≤10 565 da 750 a 1050 5
>10≤16 500 da 710 a 1030 6
>16≤40 da 172 a 241 da 580 a 820 410 da 650 a 1000 7
>40≤63 da 172 a 241 da 580 a 820 360 da 630 a 900 8
>63≤100 da 172 a 241 da 580 a 820 310 da 580 a 850 8

  * Delivery condition: as rolled.

Improved machinability:
In order to improve its machinability,  this steel grade can be supplied upon request with Pb (lead) addition, for example  Pb=0,15%÷0,35%

Weldability:
Due to the medium-high carbon content it can be welded with some precautions.

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 OTHER STANDARDS (purely as an indication):

 

UNI 7845 DIN 17200 AISI-SAE AFNOR 35-552
 C45  C45 1045  AF65C45

C45.pdf