Drill String Cross-over Sub uses AISI4145H chromium-molybdenum steel, execute API specification.We can produce the same-dia type, reducers type and L-type three types, the screw can be cold thread rolling, copper or phosphate treatment.
2Cr13 round bar is martensitic stainless steel case, more information about 2CR13 chemical composition or 2CR13 mechanical properties,please contact us!
KUNFENG can produce 9CrV stainless steel round rods, 9CrV forging round bar with professional production experience, strict control 9CrV chemical composition and 9CrV mechanical properties.