Technical requirements for the use of capillary titanium tubes

Capillary titanium tube is light in quality, high in strength and superior in mechanical properties. It is widely used in heat exchange equipment, such as tube heat exchanger, coil heat exchanger, serpentine tube heat exchanger, condenser, evaporator and piping. Many nuclear power industry to titanium tube as its unit standard tube. What kind of technical requirements are generally required for the use of titanium tubes?
1, the chemical composition of titanium tubing should be consistent with the provisions of GB/T3620.1, the demand side of the re-inspection, the permissible deviation of the chemical composition of the Mingkun titanium industry in line with the provisions of GB/T3620.2.
2, the permissible deviation of the outer diameter of the pipe shall comply with the provisions of Table I.
3, the allowable deviation of the wall thickness of the pipe should not exceed ± 12.5% of its nominal wall thickness, the allowable deviation of the wall thickness of the pipe does not apply to titanium welded pipe at the weld.
4, the length of the pipe should be consistent with the provisions of Table II.
5, the pipe sizing or times the length should be within the length of its non-sizing, sizing length of the allowable deviation of +10mm, times the length of the pipe should also take into account the amount of pipe cut when the amount of incision, each amount of incision should be 5mm.