Titanium 6Al-4V Grade 5 UNS R56400
Ti 6Al-4V titanium is used the most of all alpha-beta titanium alloys. It is usually used in the annealed condition, at service temperatures up to 750°F. However it can be heat treated to gain high strength under 4" thick. Hardenability is limited in sizes over 1" and may not develop full properties. Ti 6Al-4V can be welded with matching or with an ELI filler wire.
Ti 6Al-4V is generally resistant to corrosion even though it still may be quickly attacked by environments that cause breakdown of the protective oxide. These include hydrofluoric (HF), hydrochloric (HCl), sulfuric and phosphoric acids. Inhibitors are know to reduce this for all but hydrofluoric. Ti 6Al-4V resists attack by pure hydrocarbons, and most chlorinated and fluorinated hydrocarbons.
Ti 6Al-4V can have chloride stress corrosion cracking (known as SCC) in some conditions, although it is known to be among the better of the titanium alloys in this regard. Generally silver plated bolts are not used with Ti 6Al-4V as silver bonds easily with chlorine. Ti 6Al-4V is also susceptible to SCC in environments such as methyl alcohol, red fuming HNO3, and N2O4. In the case of red fuming nitric acid, SCC is limited to environments containing less than 1.5% water, or more than 6% NO2. Failure in N2O4 has occurred when oxygen and chlorides were present as impurities.
Specifications:
AMS 4911, AMS 4920, AMS 4928, AMS 4934, AMS 4935, AMS 4965, AMS 4967, AMS 6930, AMS 6931, AMS T-9046, AMS T-9047
ASME SB 348, ASME SB 861, ASME SB-265
ASTM B 265, ASTM B 348, ASTM B 381, ASTM B 861, ASTM F 1472
EN 3.7164, EN 3.7165
MIL-T-9046, MIL-T-9047
UNS R56400
Werkstoff 3.7164, Werkstoff 3.7165
Applications:
Silencers, Suppressors, Aircraft turbines, Engine components, Aircraft structural components, Aerospace fasteners, High-performance automatic parts, Marine applications, Sports equipment