AMS 4911 Ti6Al4V Titanium Alloy Plate

What is AMS 4911 Ti6Al4V Titanium Alloy Plate?

AMS 4911 Titanium Alloy, Sheet, Strip, and Plate 6Al – 4V Annealed (Composition similar to UNS R56400)

Form

AMS 4911 specifies the requirements for annealed titanium alloy Ti-6Al-4V plate for aerospace applications. It is a medium strength alpha-beta alloy plate with excellent corrosion resistance, weldability and high strength-to-weight ratio. AMS 4911 plates are supplied in thicknesses up to 8 inches in the annealed heat treat condition to optimize formability and machinability.

AMS 4911 Ti6Al4V titanium alloy plate contains 6% aluminum and 4% vanadium as the key alloying elements. It offers an exceptional combination of high strength, toughness and corrosion resistance while retaining useful formability and weldability. The annealed temper facilitates further fabrication like forming and machining.

It is extensively used for aircraft structural parts, engine components, fasteners, hydraulic system components and other critical airframe and aerospace applications. The high strength and damage tolerance make it suitable for fracture critical structures. The corrosion resistance allows use in stressed environments.

AMS 4911 plates are produced using vacuum arc remelting and ingot breakdown processes to ensure cleanliness and uniform microstructure. Stringent chemical, mechanical and metallurgical tests are conducted to comply with AMS 4911 requirements. Full traceability and certification to AMS 4911 is provided. Custom options like close tolerances, non-standard sizes and special packaging are available.

Specification:

Application

These products have been used typically for parts requiring strength up to  750 °F (399 °C), but usage is not limited to such applications.
1.2.1 Certain processing procedures and service conditions may cause these products to become subject to stress-corrosion cracking; ARP982 recommends practices to minimize such conditions.

AMS 4911 Ti6Al4V Titanium Alloy Plate finds versatile applications across a spectrum of industries:

Aircraft Structural Parts: In the aerospace sector, this plate is indispensable for crafting structural components that ensure the structural integrity and safety of aircraft and spacecraft.

Engine Components: It is employed in the manufacturing of engine components where its strength, corrosion resistance, and lightweight design are crucial for performance.

Fasteners: The alloy's strength and corrosion resistance make it an ideal choice for manufacturing fasteners that can withstand demanding environments.

Hydraulic System Parts: For hydraulic systems, the plate's robustness and corrosion resistance are vital, ensuring reliable performance.

Airframe Assemblies: AMS 4911 Ti6Al4V Titanium Alloy Plate is widely used in airframe assemblies, contributing to both strength and weight reduction.

Aerospace Components: The plate is instrumental in various aerospace components, enhancing the reliability and safety of aircraft and spacecraft.

Composition

Shall conform to the percentages by weight shown in Table 1; carbon shall be determined in accordance with ASTM E1941, hydrogen in accordance with ASTM E1447, oxygen and nitrogen in accordance with ASTM E 1409, and other elements in accordance with ASTM E539 or ASTM E2371. Other analytical methods may be used if acceptable to the purchaser.

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