Titanium Production Standards

1. GB 228 Test Method for Tensile Testing of Metals
2. GB 224 Test Method for Hydraulic Pressure of Metal Pipe
3. GB 226 Test Method for Flattening Metal Pipe
4. GB/T3620.1 Titanium and titanium alloy grades and chemical composition
5. GB/T3620.2 Chemical composition and permissible deviation of composition of titanium and titanium alloy processed products
Technical Requirements
1. The chemical composition of titanium and titanium alloy tubes shall comply with the provisions of GB/T3620.1, and the permissible deviation of chemical composition of Mingkun Titanium Industry shall be in accordance with the provisions of GB/T3620.2 at the time of re-inspection by the demand side.

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 shall 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 seam.
4. The length of the pipe should be in accordance with the provisions of Table II.
5. tube length or times the length of the fixed length should be in the range of the length of the non-fixed feet, fixed length of the permissible deviation of +10mm, times the length of the pipe should also take into account the amount of cut when cutting, each cut should be 5mm.