Carbon and low alloy sa573gr.70 carbon steel size with S275JR

After adding a small amount of niobium, vanadium and titanium to sa573gr.70 carbon steel size etc. steel, it is combined with the controlled rolling process to control the precipitation behavior of microalloying elements to achieve the purpose of improving the comprehensive properties of the steel, whether it is strength, toughness, ductile-brittle transition temperature, or Steel's process formability, welding performance, corrosion resistance and crack resistance have been significantly improved, while reducing production costs. Such steel products are widely used in oil and gas pipelines, vehicles, building structures, oil production platforms, pressure vessels, ship shells and many other fields.

S355J2G3 is low alloy high strength structural steel, and it is roughly equivalent to GB Q345D.
S355J2G3 is a European standard steel with composition of C ≤ 0.20, Si ≤ 0.55, Mn ≤ 1.60, P ≤ 0.035, S ≤ 0.035. The meaning of J2G3 indicates that the delivery state of S355J2G3 steel is normalized, the impact energy at - 20 ℃ is 27J. G3 and G4 indicate the deoxidization mode. sa573gr.70 carbon steel size, S355J2G3 steel is semi killed steel, S355J2G4 steel is fully killed steel.

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