2.2 MATERIALS A. Bracket and Form frame1. Structural steel shall comply with provisions of ASTM Specifications appropriate for grades indicated. Provide ASTM A36, A572 - Grade 50, steel, unless noted otherwise. Locally available steel with the same characteristics (chemical, metallurgical, physical, weld ability) as ASTM A36, A572 may be utilized.2. Alternate KSD-3503 SS400(Fy=235MPa), KSD– 3515 SM490A(Fy=325MPa).3. Dimensional Standards: ASTM A6; welded shapes per dimensional standards of mill rolled sections. B. Welding Electrodes: Comply with provisions of AWS "Structural Welding Code" and Specification A5.1, A5.5, A5.17, A5.18 and A5.20. C. High strength bolts and high strength bearing bolts, nuts and washers: Comply with provisions of: 1. ASTM A490, KS B 1010 F10T or equivalent. 2. All bolts shall be hex head. Bolts with hexheads may have break-off splines.
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