SCM440 chrome rod for hydraulic cylinder

SCM440 chrome rod or 4140 hard chrome bar is supplied in the hardened and tempered condition, cold drawn or turned, ground, chrome plated and polished. Chrome plating hardness has a surface hardness of HV 1000-1150.
SCM440 chrome rod is used in applications demanding higher yield and tensile strength compared to 1045 chrome bar, and is also available in the induction hardened condition in some sizes. SCM440 /4140 induction hardened generally has a hardened depth of approximately 3mm and hardness of 55-65 HRC.
Typical applications include: Hydraulic cylinder, Agricultural equipment, compressors, jacks, transport lifting equipment, hoists and mining/earth moving equipment.