TITAN GRADE 5 Aero

Brief description

Klein designation: TITAN GRADE 5 Aero
Class of steels:
Material number:
Standard UNS:
RoHS 2 – 2011/65/EU:
Machinability:
Hardening capability:
Forming:
Cold working hardening: TITAN GRADE 5 Aero can be cold drawn and extruded, although the cold workability is somewhat limited. Cold forming is sometimes used for parts such as brackets and clips. Due to the low modulus of titanium, springback is an issue in roomtemperature forming. Theoretically, it can be compensated for by over-bending; however, in practice hot sizing is often used to correct for the variability that occurs.
Polishing ability:
Magnetism: Magnetic Attraction: None
Corrosion resistance: TITAN GRADE 5 Aero immediately and spontaneously forms a stable, continuous, tightly adherent oxide film upon exposure to oxygen in air or water. This accounts for its excellent corrosion resistance in a variety of media. TITAN GRADE 5 Aero is highly resistant to general corrosion in aqueous solutions including seawater, as well as in oxidizing acids, chlorides (in the presence of water), rocket propellants and alkalis. Conditions under which TITAN GRADE 5 Aero is susceptible to general corrosion are in the presence of reducing acids or dry chlorine gas.

Stresscorrosion cracking (SCC) and crevice corrosion have been shown to occur in environments containing chlorides or other halide ions. For this reason, it is general practice to avoid the use of chlorinated solvents, cutting fluids, etc. in processing titanium.

Titanium and its alloys, including TITAN GRADE 5 Aero, are susceptible to hydrogen embrittlement. Gaseous or cathodic hydrogen can diffuse into the metal, forming brittle hydrides. Thus, it is important to minimize hydrogen pickup during processing, particularly heat treating and acid pickling. Specifications for TITAN GRADE 5 Aero mill products typically specify a maximum hydrogen limit of about 150 ppm.

Uses: TITAN GRADE 5 Aero may be considered in any application where a combination of high strength at low to moderate temperatures, light weight and excellent corrosion resistance are required. Some of the many applications where this alloy has been used include aircraft turbine engine components, aircraft structural components, aerospace fasteners, high-performance automotive parts, marine applications, medical devices, and sports equipment.