... psiNominalDiameterinches3/87/161/29/165/83 /4 7/81ApproximateWeightlbs./ft.0. 24 0.320 .42 0.530.660.951.291.68ApproximateMetallicAreain.20.0570.0770.1010.1280.1580.2270.3 54 0 .40 4NominalBreakingStrength1lbs.12,20016, 540 21 ,40 027,00033 ,40 0 47 ,600 64, 40083,6008x19 (W) Classification/Bright (Uncoated),Fiber Core, Improved Plow Steel, E = 9,000,000 ... psiNominalDiameterinches3/87/161/29/165/83 /4 7/81ApproximateWeightlbs./ft.0.260.350 .46 0.590.721. 04 1 .42 1.85ApproximateMetallicAreain.20.0660.0900.1180. 149 0.1 84 0.2 64 0.3600 .47 0NominalBreakingStrength1lbs.15,10020 ,40 026,60033,600 41 ,20058,80079,600103 ,40 06x37 ... Manual of Steel Construction, Volume II ( 14) and [ASD] Manual of Steel Construction, "Volume II – Connections" (13). 4. 6 DiaphragmsRoof or floor deck can be used during the erection process...