Specifications include, but are not limited to: A. Poles, arms, arm attachment plates and conductor brackets: 1. ASTM A572, ASTM A588, or ASTM A871 modified to provide minimum yield strength of 60 ksi or 65 ksi and to meet requirements specified. 2. Material shall be equal to or greater in yield strength than the values used in design calculations. 3. For galvanized structures, all steel used shall have a silicon content less than 0.06 percent. B. Baseplates & Flange Plates: 1. ASTM A572, ASTM A588, or ASTM A633 modified to provide minimum yield strength of 50 ksi, and to meet requirements specified. 2. Material shall be equal to or greater in yield strength than the values used in design calculations. C. Threaded Anchor bolts: 1. #10 rebar or smaller – ASTM A615, grade 60. 2. #11 rebar or larger - ASTM A615, grade 75.