Weldable structural steels permissible in buildings and bridges are listed with required electrodes in Tables 5.10 and 5.11. Welding electrodes and fluxes should conform to AWS 5.1, 5.5, 5.17, 5.18, 5.20, 5.23, 5.25, 5.26, 5.28, or 5.29 or applicable provisions of AWS D1.1 or D1.5. Weld metal deposited by electroslag or electrogas welding processes should conform to the requirements of AWS D1.1 or D1.5 for these processes. For bridges, the impact requirements in D1.5 are mandatory. Welding processes are described in Art. 2.6.
For welded connections in buildings, the electrodes or fluxes given in Table 5.10 should be used in making complete-penetration groove welds. These welds can be designed with allowable stresses for base metal indicated in Table 6.23. (See Art. 6.14.)
For welded connections in bridges, the electrodes or fluxes given in Table 5.11 should be used in making complete-penetration groove welds. These welds can be designed with allowable stresses for base metal indicated in Table 11.6 or 11.29. (See Art. 11.8 or 11.37.)
Allowable fatigue stresses must be considered where stress fluctuations are present. (See Art. 6.22)