API Gravity: Definition, Calculation, and Converter

api36ASTM A36 Steel. ASTM A36 steel is one of the most widely used carbon structural steels, although the carbon content of A36 material is maximumAPI :Degrees API Gravity. API Gravity Definitions: Definition of API Gravity of water provided by Pedia:. The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or lht a petroleum liquid is compared to