Coupling Stock is a very important role in the oil field industry.Why?Because coupling stock has widely use in the processes of drilling.Coupling stock is the seamless pipe used for producing couplings of casing and tubing.
Seamless thick wall tubular product is used for the manufacture of coupling blanks. API APEC 5CRA,specification for corrosion resistant Alloy seamless tubes for use as casing ,tubing,and coupling.The quality of the coupling stock with high quality. The seamless pipe serve as the material of the coupling stock,it ensures the quality of the coupling stock.The coupling material that meets the coupling stock requirements.Because the coupling material has reached the standard of API APEC 5CT,specification for casing and tubing.
The standard of API Coupling Stock is according to API SPEC 5CT 9th.The characteristic of coupling stock is rolled by KPE mill, with good dimension control, high qualified product ratio, stable mechanical and impact property. The out diameter range of coupling stock is from 52.2~244.48mm.The wall thickness range is from 4.2~22mm.