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.
5052 aluminum bar is a versatile alloy within the aluminum family, renowned for its exceptional corrosion resistance, good formability, and moderate to high strength.
SAE1045 round bar is a high-strength carbon quenched and tempered steel,which has a certain degree of ductility and toughness, high strength, good machinability.
The RINA FH40 grade steel plates have yield strength of 56,500 psi (390 MPa), and ultimate tensile strength of 74,000 - 94,500 psi (510-650 MPa). RINA FH40 steel can achieve the impact toughness at Celsius degree -60°. All the RINA FH40 shipbuilding Steel