Susceptibility to Erosion. One of the main differences between carbon steel and black steel is that carbon steel piping and carbon steel pipe fitting are susceptible to corrosion. Black steel piping, on the other hand, is made from non-galvanized steel and is not susceptible to corrosion.
Product Name
Carbon steel pipe
Material
Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Grade B Grade C