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.
GB/T 9711-2011 L360M/X52M PSL2 LSAW pipeline is use of cold-rolled, hot-rolled / cold-drawn, hot-drawing process,L360M/X52M PSL2 LSAW pipeline is mainly used in machinery industry and manufacturing machinery and hydraulic steel industry parts, transmission fluid and gas,its surface can be coated with corrosion protection. Packaging use large diameter: bulk, small diameter: with steel packaging,can according to customer requirements.
API 5L X56 PSL1 steel plate have many users in the world. The API 5L X56 PSL1 steel plate can be made into pipeline. We export a large mount of API 5L X56 PSL1 steel plates every year to our users of API 5L X56 PSL1 steel plate