MAXDRILL Hollow Drill Steel Bar

Description

A type of steel specially used in drill rod manufacture, high intension and toughness. According to the section, it can be divided into hexagonal steeland round steel. Hexagonal steel mainly used in producing Integral drill rod, while round steel in extension drill rod. The main size and specifications as below: Hot Rolled Hexagonal Hollow Drill Steel Bar Steel Grade: *5CrMo as per Chinese Standard with following chemistry: C: 0.***1.*3PCT; Si: 0.***0.*5PCT; Mn: 0.***0.*5PCT; Cr: 0.***1.*0PCT; Ni: 0.*5PCT MAX.; Mo: 0.***0.*0PCT; S, P: 0.**5PCT MAX; Cu: 0.*0PCT MAX. Physical Specification σb ***0Mpa δs 9% Ψ *5.5% σ*1