国产午夜精品不卡视频-国产午夜精品久久久久-国产午夜精品久久久久九九-国产午夜精品久久久久免费视-羞污影院-羞羞的动漫网站

無縫鋼管理論重量表

壁厚       外徑
33.544.555.56
322.1462.4602.7623.0523.3293.5943.847
382.5892.9783.3543.7184.0694.4084.735
422.8853.3233.7494.1624.5624.9515.327
453.1073.5824.0444.4954.9325.3585.771
503.4774.0144.5385.0495.5496.0366.511
543.7734.3594.9325.4936.0426.5787.103
573.9954.6185.2285.8266.4126.9857.546
604.2174.8775.5246.1596.7827.3927.990
63.54.4765.1795.8696.5487.2147.8678.508
684.8095.5676.3137.0477.7688.4779.174
704.9575.7406.5117.2698.0158.7499.470
735.1795.9996.8077.6028.3859.1569.914
765.4016.2587.1037.9358.7559.56310.358
896.3637.3808.3859.37810.35811.32612.281
1087.7689.02010.25911.48612.70113.90315.093
13311.17812.72514.26115.78317.29418.792
15913.42215.29017.14618.98920.82122.639
21918.60121.20923.80526.38828.95931.517
27323.26226.53629.79733.04636.28339.508
32527.75031.66535.56839.45843.33747.202
35538.89743.15847.40651.641
37741.33945.87150.39054.897
42646.77751.91357.03662.147
450　
480　
530　
630　　　　　　　
單位：Ｋg/m
　壁厚       外徑
6.5788.591012
324.088　
385.049　
425.691　
456.172　
506.9737.4238.2868.699　
547.6148.1149.0759.538　
578.0958.6329.66710.167　
608.5769.14910.25910.796　
63.59.1379.75410.95011.529　
689.85810.53011.83812.473　
7010.17910.87612.23212.89213.53914.79717.164
7310.66011.39412.82413.52114.20515.53718.052
7611.14111.91213.41614.15014.87116.27718.940
8913.22514.15615.98116.87517.75619.48322.787
10816.27017.43619.72920.85821.97324.16828.410
13320.27821.75124.66226.09827.52230.33435.809
15924.44626.24029.79131.54833.29336.74643.503
21934.06436.59841.62944.12646.61051.54361.259
27342.72045.92052.28355.44558.59664.86077.240
32551.05654.89762.54266.34670.13777.68492.629
35555.86560.07668.46072.63476.79685.082101.507
37759.39163.87372.80177.24681.67990.508108.018
42667.24672.33282.46887.51892.555102.592122.519
45071.09376.47587.20392.54997.882108.511129.621
48075.90281.65493.12298.837104.540115.909138.499
53083.91790.286102.987109.319115.638128.240153.296
63099.947107.549122.716130.281137.833152.902182.890
 注：計算常用型材理論重量計算公式：
 m=F×L×ρ
 m—質量 Kg ；F—斷面積m2/m ；L—長度m ； ρ—密度 *Kg/m3
☆其中：F斷面積計算方法：
1、方鋼      F= a2   
2、鋼管     F=3.1416×＄(D-＄)     D—直徑      ＄—厚度
3、鋼板、扁鋼   F= a×＄            a—寬度
密度：
鋼材：7.85*103 kg/m3
鋁：2.5～2.95*103
銅：8.45～8.9*103
鑄鐵：6.6～7*103
尼龍：1.04～1.15*103