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# 厂家分享方管的重量计算公式

Square pipes are mostly steel pipes. After unpacking, flattening, crimping and welding, they form round pipes. Then they are rolled into square pipes and cut into required lengths. Generally, 50 square tubes per package are in large specifications at most 10*10*0.8-1.5-500*500*10-25. The square tubes are used as structural square tubes, decorative square tubes, building square tubes, mechanical square tubes and so on. 方管的重量计算公式 ：(边宽a+边宽b-2.8584×壁厚)×壁厚×0.0157×长度, 注意计算单位(边宽与壁厚单位是毫米,长度是米).。 这种方法还适应KQJ、KQF空心钢计算.这种方法比较简单,也容易记,在工矿企业常用.

The formulas for calculating the weight of square pipes are as follows: (side width a + side width b-2.8584 * wall thickness) * wall thickness * 0.0157 * length, pay attention to the unit of calculation (side width and wall thickness are millimeters, length is meters). This method is also suitable for calculation of KQJ and KQF hollow steel. This method is simple and easy to remember. It is commonly used in industrial and mining enterprises.

If the cross-section length of square tube is a, the width is b, the back of the wall is c, the length of square tube is l, and the density of square tube is p, then

Weight=(a b-(a-2c)(b-2c)*l*p

=2c（a+b-2c)×l×p

= 2c(a+b-2c)*l*p

=2clp(a+b-2c)

= 2clp(a+b-2c)

The weight of the square tube can be calculated by substituting the above figures into the formula. But we should pay attention to the units of each value.

Calculating Formula and Permissible Deviation of Delivery Weight

（1）边长*4*壁厚*7.85*长度

(1) Edge length * 4 * Wall thickness * 7.85 * Length

（2）4*壁厚*（边长-壁厚）*7.85*长度

(2) 4 * wall thickness * (side length - wall thickness) * 7.85 * length

Generally (1) commonly used. If the length of 40MM*20MM*1.5MM square tube is 850MM, that is:

（20+40）*2*1.5*7.85*850=0.012吨

(20+40)*2*1.5*7.85*850=0.012 tons 0 0 # 管理员 