20# Seamless Steel Pipe is a general carbon steel seamless pipe with carbon content ranging from 17% to 22%. It is one of the most stockpiled seamless pipes in the domestic market and also one of the most widely used. It is a common and versatile seamless pipe. The mechanical properties of the 20# Seamless Steel Pipe are as follows: Tensile Strength (MPa): ≥410 (42), Yield Strength (MPa): ≥245 (25), Elongation (%): ≥25, Section Reduction Rate (%): ≥5, Hardness: Unhardened, ≤156HB.