1、方管的计算公式：（边长+ 边长）*2* 厚度*0.00785= 米重常用方矩管规格型号即厚度方管 矩管 规格 壁厚 规格 壁厚 20*20 1.0/1.2/1.5/2.0 20*40 1.0/1.2/1.5/2.025*25 1.0/1.2/1.5/2.0/2.5/3.0 25*50 1.0/1.2/1.5/2.0/2.5/3.030*30 1.0/1.2/1.5/2.0/2.5/3.0 30*60 1.0/1.2/1.5/2.0/2.5/3.040*40 1.5/2.0/2.5/3.0/3.5/4.0 40*80 1.5/2.0/2.5/3.0/3.5/4.050*50 1.5/2.0/2.
2、5/3.0/3.5/4.0 60*80 2.0/2.5/3.0/3.5/4.060*60 2.0/2.5/3.0/3.5/4.0 80*120 3.0/3.5/4.070*70 2.0/2.5/3.0/3.5/4.0/4.5 80*160 3.0/3.5/4.080*80 2.0/2.5/3.0/3.5/4.0/5.0/6.0 100*150 3.0/3.5/4.0100*100 2.0/2.5/3.0/3.5/4.0/5.0/6.0 150*200 4.0/4.5/5.0/5.5/6.0/7.0120*120 3.0/3.5/4.0/4.5/5.0/5.5/6.0 150*250 4.0/4.5/5.0/5.5/6.0/7.0150*150 4.0/4.5/5.0/5.5/6.0/7.0 150*300 4.0/4.5/5.0/5.5/6.0/7.0160*160 4.0/4.5/5.0/5.5/6.0/7.0 200*300 4.0/4.5/5.0/5.5/6.0/7.0180*180 4.0/4.5/5.0/5.5/6.0/7.0 300*500 5.0/5.5/6.0/7.0/8.0200*200 5.0/5.5/6.0/7.0/8.0
