Steel Tube Test under Sand Q

50/60 steel tube test under sand Q2 Property evaluated 

To provent fragments from escaping the test site, the field must be an explosion test field 1 m in deep and 3m x 3m in size. 

A cold-drawn seamless steel tube 5mm thick with an inner diameter of 50mm and a length of 500mm is used. The bottom end is made from steel plate 6mm thick by melting method. The cover is made from malleable cast iron and with a screw in its center. On the cover is a hole with a diameter of 7.5 mm so that a No. 6 detonator (JIS K 4807) can be inserted into the tube. The volume of the tube is about 1 liter. 

The booster is formed from RDX(95%) and wax(5%) by compression with 1500kg/cm 2 of pressure. The diameter of the booster is 30mm, and its length is 43mm. On the upper end a hole 7mm in diameter and 20mm deep is formed to insert a detonator. 

To provent the unstable tested materials from contacting with the steel tube, the sample is first put into a thin polyethylene tube 50mm diameter, then into the steel tube. 

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