16MnG steel high pressure boiler tube is low alloy high strength structural steel (GB/T1591-1994), in addition to a certain amount of silicon or manganese elements, 16MnG steel also contains other 16Mn high pressure boiler tubes suitable for our country.

Elements of the resource situation. Such as vanadium (V), niobium (Nb), titanium (Ti), aluminum (Al), molybdenum (Mo), nitrogen (N), and rare earth (RE) and other trace elements. According to the chemical composition and performance requirements, its brand by Q295A, B, Q345A, B, C, D, E, Q390A, B, C, D, E, Q420A, B, C, D, E, Q460C, E, D, and other steel grades, which means the same as carbon structural steel.

V, Nb, Ti, Al and other trace elements in grain refinement, 16MnG steel this kind of steel in addition to A, B steel, C, D, E grade steel should be at least contains one of the species; in order to improve the performance of the steel, a A and B grade steel can also join them. In addition, the content of residual elements of Cr, Ni and Cu in these steels is not greater than 0.30%. Q345A, B, C, D and E are representative grades of this kind of steel. Among 16MnG steel, A and B grade steels are usually called 16Mn. More than one trace element is added to steel at grade C or above, and 1 cryogenic impact properties are added to the mechanical properties.