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AASHTO

M 322M/M 322-22

Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement

2022

9

HM42-2022 part 1

This specification covers rail-steel and axle-steel bars for concrete reinforcement. Three types of product are included, designated with a “rail symbol” and an “R” for bars made of rail-steel and with an “A” for bars made of axle-steel. The standard sizes and dimensions of deformed bars and their number designations are given in Table 1. All sizes and grades of all types may not be readily available; manufacturers should be consulted to verify availability ...