This classification system dedicates the primary 3 digits to the design and performance of the tricone, with the ultimate digit being an alphabetical code for any further options of the bit. Right here is the right way to learn an IADC Code correctly.
The primary digit represents the hardness of rock formation the tricone buttons are fitted to
Each tricone bit is designed for a sure kind of rock formation, ranked in accordance with hardness. The tricone is assigned a quantity between 1 and eight indicating the kind of rock the enamel or buttons of a tricone are designed for:
1, 2 and three: Point out a metal tooth tricone. 1 is engineered for tender rock formations, 2 for medium formations, and three for arduous formations.
4, 5, 6, 7, and eight: Signifies a tungsten carbide insert (TCI) tricone. Inside this class 4 is designated for the softer formations, with 8 representing the toughest formations
The second digit represents additional rock formation data
No matter tooth kind, the second digit takes under consideration all elements of the bit and ranks the rock formations the tricone is greatest fitted to on a scale from 1 to 4. 1 represents tender formations going as much as 4 representing the toughest formations.