What is the difference between ASTM A53 Grade A and Grade B carbon steel pipes?

The main differences between the two lie in carbon content and strength grades:

A53 Grade A: Has a lower carbon content, with relatively lower tensile strength and yield strength, but better ductility. It is suitable for general strength requirements and is the preferred choice for certain cold-forming and coiled applications.

A53 Grade B: Has a slightly higher carbon content, resulting in higher tensile strength and yield strength. It is suitable for general piping and mechanical applications with higher strength requirements and is more widely used.