Heavy EquipmentExcavator
Boss casting (~469 lbs)
Welded-in boss or integrated boss in boom/arm assembly. Pin bore – H8/h7 tolerance. Weld preparation per EN 15085 or AWS D1.1.
Specifications
Material
Cast Steel A148 Gr80-50 / Gr105-85; low alloy
Material Class
Cast SteelLow alloy
Applicable Standards
EN 15085
Common Processes
Resin sand; heat treat
NDT & Inspection
MT; dimensional (bore); VT
Typical Specs & Notes
Welded-in boss or integrated boss in boom/arm assembly. Pin bore – H8/h7 tolerance. Weld preparation per EN 15085 or AWS D1.1.