• Model NO.：sr
• Grade：D , Kd ,Hl
• Certificate：API 11b
• with Coupling：as Requested
• Slim Hole：as Requested
• Coupling Grade：T,Sm
• Transport Package：Frame
• Specification：API
• Trademark：zhongshi
• Origin：Henan, China
• HS Code：8431
• Production Capacity：10000PC,Month

gradeyield strength Rel(Mpa)Tensile strength Rm(Mpa)Percentage Elongation A(%)Contraction percentage of Area Z(%)Impact toughnessC≥ 414620-793≥ 12≥ 55≥ 70D≥ 620794-965≥ 10≥ 50≥ 58.8K≥ 414620-793≥ 12≥ 55≥ 70 
grade C: suitable for sour medium environment where they are not susceptible to sulphuric stress cracking.
grade D: suitable for the deeper oil well in the non-corrosion or light-corrosion medium.
grade K: suitable for light loading and corrosion medium shallow well.

 
Technical Date:SizeRod D.(in)Thread D.(in)Length of pin(mm)Length of wrench(mm)Width of Wrench (mm)Length of rod(ft)5/85/815/1631.75≥ 31.822.202 / 4 /6 / 8 /10/25/303/43/41-1/1636.50≥ 31.825.402 / 4 /6 / 8 /10/25/307/87/81-3/1641.28≥ 31.825.402 / 4 /6 / 8 /10/25/30111-3/847.63≥38.133.302 / 4 /6 / 8 /10/25/301-1/81-1/81-9/1653.98≥41.338.102 / 4 /6 / 8 /10/25/30