16Mn alloy steel pipe is: 16Mn called low alloy high strength structural steel low alloy high strength structural steel: carbon content of 0.1% -0.25%, adding the main alloying elements manganese, silicon, vanadium, niobium and titanium; its total alloy The amount is <3%. It is divided into four levels of 300, 350, 400 and 450 MPa according to intensity. There are mainly Q295, Q345, Q390, Q420, Q460. : "Q" is the Chinese Pinyin capitalized initial of the yielding "Qu", and the subsequent number is the value of the minimum yield point (σs) of this grade. The following symbol is based on the content of the impurity elements (S, P) of the steel. It is divided into A, B, C, and D grades when it is low and changes with carbon and manganese. Which A, B grade steel is usually called 16Mn
Chemical composition of 16Mn alloy steel pipe:
C: 0.12~0.20; Mn: 1.20~1.60; Si: 0.20~0.55; Tensile strength: 470~660 N/mm; Yield strength: 275~345 N/mm; Elongation: 21%. The specific value should be based on the thickness or diameter of the steel. The above data corresponds to the thickness or diameter of the steel: 16~100mm
The use of 16Mn alloy steel pipe:
The special steel used for the bridge is "16Mnq", the special steel for the car beam is "16MnL", and the special steel for the pressure vessel is "16MnR".
16Mn Alloy Steel Pipe Standard:
GB8163-1999 (for conveying fluid) GB6479-2000 (seamless steel pipe for high pressure fertilizer equipment)
Alloy pipe 16Mn weight formula: [(outer diameter - wall thickness) * wall thickness] * 0.02466 = kg / meter (weight per meter).
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