Cold drawn standards EN 10277:2018 W.NR.: W.NR.: 1.1121 Special non-alloy case-hardening steel CHEMICAL COMPOSITION MECHANICAL FEATURES PROPERTIES Eat analysis according to the EN ISO 683-3:2022 standard C % Si % Mn % P % S % Cr % Mo % Ni % Cu % DA 0,07 – 0,30 – – – – – – A 0,13 0,40 0,60 0,025 0,035 0,40 0,10 0,40 0,30 According to the EN 10277:2018 standard Thickness mm Soft annealed + cold drawn ( +A+C ) cold drawn ( +C ) Hardness maximum values HB Rp0,2 minimum Rm (MPa) A5 % (MPa) minimum ≥5≤10 225 350 da 460 a 760 8 >10≤16 216 300 da 430 a 730 9 >16≤40 207 250 da 400 a 700 10 >40≤63 190 200 da 350 a 640 12 >63≤100 172 180 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 EN 10084 AFNOR 35-551 C10 CK10 C10E XC10 C10E-EN.pdf (PDF, opens in a new window)