美标等边角钢 英制规格 边宽*边宽*边厚（英寸） 规格型号 边宽*边宽*边厚(mm) 理论重量 (kg/m) L3/4×3/4×1/8 L19*19*3.2 0.88 L1×1×3/16 L25.4*25.4*4.8 1.73 L1×1×1/8 L25.4*25.4*3.2 1.19 L1-1/4×1-1/4×3/16 L32*32*4.8 2.20 L1-1/4××1-1/4×1/8 L32*32*3.2 1.50 L1-1/2×1-1/2×3/16 L38*38*4.8 2.68 L1-1/2×1-1/2×5/32 L38*38*4.0 2.26 L1-1/2×1-1/2×1/8 L38*38*3.2 1.83 L1-3/4×1-3/4×3/16 L44.5*44.5*4.8 3.16 L1-3/4×1-3/4×1/8 L44.5*44.5*3.2 2.14 L2×2×1/4 L51*51*6.3 4.75 L2×2×3/16 L51*51*4.8 3.63 L2×2×1/8 L51*51*3.2 2.46 L2-1/2×2-1/2×5/16 L64*64*7.9 7.45 L2-1/2×2-1/2×1/4 L64*64*6.4 6.11 L2-1/2×2-1/2×3/16 L64*64*4.8 4.57 L3×3×3/8 L76*76*9.5 10.72 L3×3×5/16 L76*76*7.9 9.09 L3×3×1/4 L76*76*6.4 7.30 L3×3×3/16 L76*76*4.8 5.53 L3-1/2×3-1/2×3/8 L89*89*9.5 12.66 L3-1/2×3-1/2×5/16 L89*89*7.9 10.72 L3-1/2×3-1/2×1/4 L89*89*6.4 8.64 L4×4×1/2 L 19.07 L4×4×7/16 L 16.83 L4×4×3/8 L 14.60 L4×4×5/16 L 12.21 L4×4×1/4 L 9.83 L5×5×1/2 L 24.13 L5×5×7/16 L 21.30 L5×5×3/8 L 18.32 L5×5×5/16 L 15.34 L6×6×5/8 L 36.05 L6×6×9/16 L 32.62 L6×6×1/2 L 29.19 L6×6×7/16 L 25.62