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.
We keep more than 1000 tons SPHD steel stock , so we can supply many specifications SPHD steel structure based on the customer's requirement. And we also can supply SPHD steel work customized service.
ISO3183 L555M/X80M PSL2 pipeline is KUNFENG Steel main production of steel, used in oil and gas, chemical, power industry and shipbuilding, water transport, ISO3183 L555M/X80M PSL2 pipeline has C, Si, Mn, P, S and other elements, and has good mechanical properties.