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.
ASTM4142 has high strength and hardenability and good toughness. When quenching, the deformation is small, when high temperature,creep strength and rupture strength is high.
40 Cr hot rolled round bars and forged round bars are the steel of the standard of GB/T 3077-1999 in China, any need in 40Cr hot rolled round bars and forged round bars ,please contact us!
18CrMnNiMoV round bar has high Strength, plasticity and wear resistance.We keep many 18CrMnNiMoV hot rolled round bars and forged round bars with the top quality in our warehouse.
SAE1006 steel work applicable to all kinds of metal stamping, good performance, such as SAE1006 steel work bracket, rotating stator, fans, motorcycle fuel tanks, SAE1006 steel structure tubes, home appliances and shell and other hardware products.