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.
According to the properties, GB/T 3077 20SiMn2MoV is mainly used for components with long working time at low temperature, heavy load, big section work conditions.
Since SPHE steel is hot rolled steel, the available sheet thicknesses is from 1.2 mm to 6 mm. The width of the material ranges from 1200 mm to 2000 mm.