AASHTO M 322M/M 322-10 (2019) PDF Download

AASHTO M 322M/M 322-10 (2019) is a standard specification that focuses on rail-steel and axle-steel deformed bars used for concrete reinforcement. This standard classifies the bars into three types: rail-steel bars designated by a rail symbol and "R," and axle-steel bars designated by an "A." It also provides a table with the standard sizes, dimensions, and number designations for the deformed bars.

Manufacturers may not always have all sizes and grades readily available, so it is recommended to consult with them to verify the availability of specific products. The purpose of this standard is to establish guidelines and specifications for the production and use of rail-steel and axle-steel deformed bars in concrete reinforcement applications.