Housing and casing for oil electric submersible pump ,motor ,protector and sepetator Application It uses coll rolling process and formed in one step,inner hole precision /-0.05mm, degree of finish Ra0.8~1.6, section wallthickness deviation 0.2mm, ovality within 0.05mm,straightness 0.2mm/m, The cold-rolled housing can be directly assembled and used without honing, which greatly saves the processing cost and improves the working efficiency. Characteristics Suitable for electric submersible motor ,pump ,protector and seperator with different geological conditions Types of ESP systems 375series,456series,562series,540series according to clients' drawing Material ASTM A335 T9/P9,45#steel,ASTM A335 P5,TP304,TP316,316L,L80 etc.according to clients' requirements Technical Performance Tensile strength>=560Mpa Yield strength>=525MPa Elongation>=10% Circular degree of inner hole