sae 4140 Heat Treated Steel Pipe and Tube 

Heat treated steel pipe and steel tube are steel pipe and tube which is heat treated such as annealed steel pipe, normalized steel pipe and quenched & tempered steel pipe which is also called QT steel pipes or QT steel tubes. They are heat treated to get different mechanical properties and hardness to meet different usages. We can produce hot rolled, cold drawn and drilling heat treated pipe, tube or hollow bar. ADVANTAGES OF OUR HEAT TREATED STEEL PIPE: . Precision Dimensions: Outside Dia, Inner Dia and Thickness. Wide size range: 20mm to 300mm . Processing: Hot Rolled, Cold Drawn or Drilled Hollow bar . Customized Length: can cut according to your demands . Good straightness . Polished bright surface . Uniform hardness / High strength mechanical properties . Wide steel grades； Carbon or alloy steel grades . Applications: Hydralic Cylinders, Drill Equipment, Bushings, Sleeves, Flanges, Pipe fittings, Bearings, Ro…