Atlas 6587 Case Hardening Alloy Steel Bar 6587
Atlas 6587 low-alloy steel bar complies with both 17CrNiMo6 (DIN17210) and 18CrNiMo7-6 (EN 10084) both described under Material Number 1.6587. The specification of 17CrNiMo6 is practically equivalent to grade X4317 under AS 1444. Chemical Composition Specification values in % C Si Mn P S Cr Ni Mo 0.15-0.21 ≤ 0.40 0.50-0.90 ≤ 0.035 ≤