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Calculation method of square tube weight: The length of the square tube section is a, the width is b, the back of the wall is c, the length of the square tube is l, and the density of the square tube is p, then the weight = (ab-(a-2c)(b-2c) )×l×p =2c(a+b-2c)×l×p =2clp(a+b-2c) Substituting the above numbers into the above formula, the weight of the square tube can be found.
But pay attention to the units of each value. Because I don’t know the density of the square tube, I can’t find the final weight value.
4xWall Thickness The unit is grams.
For example, for a 30x30x2.5 mm square tube, the weight per meter can be calculated according to the above formula: 4×2.5x(30-2.5)x7.85=275×7.85=2158.75 grams, which is about 2.16 kg when the wall thickness and side length are When all are in millimeters, 4x wall thickness is the weight in grams per meter of square tube.
Link to this article：What is the method for calculating the weight of square tubes?
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