Will ah, this depends on the size of the diameter of the tube empty place and the size of the diameter of the steel ball to say. The steel ball is smaller than the empty tube place can certainly fall down.
Precision tube is a kind of high precision, high brightness seamless steel tube produced by cold drawing or cold rolling process. Its inner and outer diameter dimensions can be accurate to within 0.2mm, in order to ensure the same bending and torsion strength, lighter weight, so it is widely used in the manufacture of precision mechanical parts and engineering structures. Also commonly used for the production of a variety of conventional weapons, gun barrels, artillery shells, bearings and so on.
Precision tube low temperature tempering brittleness Alloy steel quenching to get ? Martensite organization, tempering in the temperature range of 250 ~ 400 ℃ to make the steel embrittlement, its toughness a brittle transition temperature increases significantly. Has embrittled precision tube can no longer be eliminated by low temperature tempering heating method, so it is also known as %26ldquo; irreversible tempering embrittlement %26rdquo;. It mainly occurs in alloy structural steel and low alloy ultra-high strength precision tube and so on? Steel. Has embrittled precision tube fracture is along the crystal fracture or along the crystal and quasi-dissolution mixed fracture.