CO₂ in the formation will erode the common pipe in the well, and reduce the life of the well.The cementing tools and accesories are made of the stainless steel with good mechenic performance to resist the CO₂ erode.
    Features:1.Special heat treatment and manufacture process make the mechanical performance to meet the design requirement
             2.Electroplate with double metal to aviod felting the thread under high torque condition
             3.Adjust the thread a little to reduce the load of per-thread

   Property Parameters
 

Yield limit(MPa)	Intension limit（MPa）	Extend rate(%）	Hardness（HB）
675～680	825～830	15～16	220～237