Geometrical dimension inspection of A210C seamless steel pipe:
The outer diameter, wall thickness, curvature and length of A210C seamless steel pipe can be checked by external caliper, micrometer, bending rule and length tape on the inspection table. The outer diameter, wall thickness and length of A210C seamless steel pipe can also be continuously tested by automatic dimension measuring device, such as automatic diameter measuring, thickness measuring and length measuring device. The seamless steel pipe production plants, which were put into operation in the late 1980s, generally have on-line automatic diameter and thickness measuring devices, and length measuring and weighing equipment are set up in the finishing area.

Internal and external surface inspection of A210C seamless steel pipe:
Generally, visual inspection is used to inspect the internal and external surface of A210C seamless steel pipe. In addition to visual inspection, the internal surface can also be inspected by reflection prism. Some special purpose seamless steel pipes also require nondestructive testing, including eddy current, magnetic flux leakage, ultrasonic, magnetic particle testing, etc. to inspect the internal and external surface quality.