What is thickness difference between B class and amp C class MS pipe?

The thickness difference between B Class and C Class mild steel (MS) pipes typically lies in their wall thickness specifications. B Class pipes generally have a thicker wall compared to C Class pipes, which means they can handle higher pressures and are often used in applications requiring greater strength. For precise measurements, it's best to consult relevant standards or specifications, as the exact thickness can vary based on pipe diameter and material grades.