Titanium fittings features:

When the hydrogen content in the titanium tube is too much, the impact toughness and notched tensile strength will drop sharply due to brittleness. Therefore, it is generally stipulated that the hydrogen content in the titanium tube should not exceed 0.015%. In order to reduce the amount of hydrogen absorption, fingerprints, rolling mill marks, grease and other residues should be removed before the parts are heat treated. There is no moisture in the atmosphere of the heat treatment furnace. If the hydrogen content of the titanium tube exceeds the allowable value, it must be removed by vacuum annealing. Vacuum annealing for dehydrogenation is generally maintained at 538-760°C and a pressure lower than 0.066Pa for 2-4 hours.

When the temperature does not exceed 540°C, the oxide film on the surface of the titanium tube will not be significantly thickened. At higher heat treatment temperatures (above 760°C), the oxidation rate will rapidly increase, and oxygen can expand into the material to form a diffusion layer— Pollution layer. The high brittleness ratio of the oxygen contamination layer leads to cracks and damage on the surface of the part. There are mechanical processing methods (such as sandblasting, house cutting, etc.) or chemical methods such as acid washing and chemical milling to remove the oxygen pollution layer. During the heat treatment, the heating time should be as short as possible under the premise of ensuring the heat treatment of the meteorite. It is carried out in a vacuum furnace or an inert gas (argon, nitrogen, etc.) heating furnace. The appropriate application can also avoid or reduce the pollution caused by the titanium tube parts being heated in the air furnace.
Gr9 Ti-3Al-2.5V Titanium Bar     Gr7 Ti-0.2Pd Titanium Wire     ERTi-3 Pure Titanium Welding Wire     Gr3 Pure Titanium Pipe