How to calculate the fillet radius of square pipe

1. First, measure the size of the square pipe and get the value of the side length and wall thickness.

2. Secondly, according to the size of the square pipe, calculate the inscribed circle diameter of the current square pipe.

3. Final calculation formula: fillet radius = (inscribed circle diameter -2 times wall thickness) ÷ 2. From this, the fillet radius of the square tube is calculated.

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