Pipe difference: 16Mn seamless steel pipe and 45 # seamless steel pipe

Difference between steel pipes: Bangdong 16Mn seamless steel pipe and Bangdong 45 # seamless steel pipe It is different in two materials, different yield strength, 16Mn carbon equivalence of both Q345 is 12-20%, while 45# steel carbon is 38-48%, so 16Mn (Q345B) steel pipe is a low-alloy high-strength structural steel, carbon content of 0.1% -0.25%, adding the main alloying elements manganese, silicon, vanadium, niobium and titanium, etc.; its total alloy content <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.
The application of 16Mn seamless steel pipe: The special steel used for the bridge is “16Mnq”, the special steel for the car girder is “16MnL”, and the special steel for the pressure vessel is “16MnR”. This kind of steel is to improve the mechanical properties of steel by adjusting the amount of carbon (C). Therefore, according to the level of carbon content, such steels can be further divided into: low-carbon steels - carbon content is generally less than 0.25%, such as 10, 20 steel, etc.; medium carbon steel - carbon content is generally between 0.25 ~ 0.60%, such as 35,45 steel, etc.; high carbon steel - carbon content is generally greater than 0.60%. This type of steel is generally not used to make steel pipes.
16Mn seamless steel tube theoretical weight formula: [(outer diameter - wall thickness) * wall thickness] * 0.02466 = kg / meter (weight per meter)
45# seamless steel tube is a kind of material in steel. 45, refers to the carbon content of this material, about 450 or so. 45 steel is a high-quality carbon structural steel. Application examples: Parts used to make gears, racks, sprockets, shafts, keys, pins, impellers for steam turbines, and compressor pumps.
45 # seamless steel pipe weight calculation formula: [(outer diameter - wall thickness) * wall thickness] * 0.02466 = kg / m (weight per meter) Their yield strength of 345 and 600, 45 # steel hardness Above 16Mn.
The Bangdong 16Mn seamless steel pipe andBangdong 45 # seamless steel pipe were purchased to the Bangdong Seamless Steel Pipe Plant.