CARBON STEEL PIPES
Steel is considered to be carbon steel when no minimum content is specified or required for chromium, cobalt, niobium, molybdenum, nickel, titanium, tungsten, vanadium or zirconium, or any other element to be added to obtain a desired alloying effect; when the specified minimum for copper does not exceed 0.40 percent; or when the maximum content specified for any of the following elements does not exceed the percentages noted: manganese 1.65, silicon 0.60, copper 0.60. Most the steel produced in the world falls into the category of carbon steel.
There are different classes of carbon steel pipes. They are categorized by the percentage of carbon that is mixed with the base element, iron.
|
Classes of carbon steel |
Carbon content % |
|
Ultra-high carbon steel |
1.00 – 2.00 |
|
High carbon steel |
0.60 – 0.99 |
|
Medium carbon steel |
0.30 – 0.59 |
|
Low carbon steel |
0.16 – 0.29 |
|
Mild carbon steel |
0.05 – 0.15 |