Cold drawn EN 10277:2018 standard W.NR.: 1.0501 Non-alloy high grade steel CHEMICAL COMPOSITION MECHANICAL FEATURES PROPERTIES Heat analysis according to the EN ISO 683-1:2018 standard C % Si % Mn % P % S % Cr % Ni % Mo % Cu % Cr+Mo+Ni % From 0,32 0,10 0,50 – – – – – – – To 0,39 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) minimo ≥5≤10 510 da 650 a 1000 6 >10≤16 420 da 600 a 950 7 >16≤40 da 156 a 204 da 520 a 700 320 da 580 a 880 8 >40≤63 da 156 a 204 da 520 a 700 300 da 550 a 840 9 >63≤100 da 156 a 204 da 520 a 700 270 da 520 a 800 9 * 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: It can be welded quite well without any precautions. Hardenability: Low hardenability; core quenching in water till a diameter of 12-15 mm; as far as bigger diameters are concerned, it hardens only till a certain depth, inversely proportional to diameter, like all non-alloy steels with medium-high carbon content. Notes: CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication): UNI 7845 DIN 17200 AISI-SAE AFNOR 35-552 C35 C35 1035 AF55C35 C35-EN.pdf (PDF, opens in a new window)