Centrifugal casting tube using the present invention centrifugal casting steel tube, without adding any equipment and materials, can control the equiaxial crystal products, to get all of fine equiaxed crystal products, greatly improve the mechanical properties of castings.Through centrifuge production by high speed rotation of the centrifugal tube, high density, specific gravity 7.85, organize uniform density, no blowhole defects, osteoporosis, etc.Tensile strength is close to the strength of the rolling seamless tube, and the price cheap, has obvious advantages.Steel tube inside and outside diameter size, length, quantity can be according to the needs of customers.