Titanium Grade 1 is an unalloyed, low-strength titanium product containing low oxygen with high form-ability; this titanium grade is used in airframes, heat exchangers, and desalination units.
Titanium Grade 2 is an unalloyed, medium-strength titanium product. This titanium grade is used in airframes, aircraft engines, and marine parts; good weld-ability and corrosion resistance are its distinguishing characteristics.
Titanium Grade 3 is an unalloyed, high strength, titanium product providing excellent corrosion resistance and good weld-ability. This titanium grade is primarily used in air-frame and aircraft engine parts.
Titanium Grade 4 is the highest strength pure unalloyed titanium product. This titanium grade is used almost exclusively for air-frame, aircraft engine parts, marine, surgical implants, and hydraulic tubing. Good formability and corrosion resistance are its hallmarks.
The Surface Quality of Titanium Plates
1. The plate's surface should be smooth, clean, and metallic. The plate is allowed to be supplied with the sandblasted surface;
2. Slight darkening and local watermarks are allowed on the surface of the plate; Local scratches, indentation, pits, and other defects not exceeding half of the thickness tolerance are allowed, but the minimum thickness should be guaranteed;
3. The surface of the plate is not allowed to have cracks, skinning, oxide skinning, folding, metal, and non-metal inclusions, and other macroscopic defects and traces of alkali washing;
4, the plate is allowed to roll direction clear local defects, but the thickness of the plate after removal shall not be less than the minimum allowable thickness;