ASTM A672 Pipes are electric-fusion-welded (EFW) carbon and alloy steel pipes manufactured from pressure vessel quality plates. These pipes are designed for moderate-temperature services under high-pressure conditions, making them ideal for industrial piping systems in power plants, refineries, and oil and gas infrastructure. The welding process used in their fabrication ensures a strong bond along the longitudinal seam, with additional heat treatment often applied to improve the grain structure and mechanical strength.
The specification covers multiple classes and grades, such as ASTM A672 Grade B60, C65, and D70, each indicating different yield strengths, tensile properties, and test requirements. These classes determine the level of radiographic, ultrasonic, hydrostatic, and nondestructive testing (NDT) to be performed. This makes ASTM A672 pipes especially suitable for critical applications where structural integrity and leak prevention are paramount. The pipes are typically produced in sizes ranging from 12 inches to 64 inches in diameter, with customized wall thicknesses available to meet project-specific demands.
