AMS 4911 Titanium Alloy Plate

AMS 4911 Titanium Alloy Plate

Material:Ti-6AL-4V
Standard :ASTMB4911
Thickness :0.5mm-10.0mm
Surface:Polish and acid pickling
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Key Specifications of AMS 4911 Titanium Alloy Plate

 

AMS 4911 is a specification for Titanium Alloy Plate, specifically designed for use in aerospace and other high-performance applications. The alloy is a Ti-6Al-4V (Grade 5) titanium alloy, which consists of 90% titanium, 6% aluminum, and 4% vanadium. This alloy is known for its excellent strength-to-weight ratio, high temperature performance, and corrosion resistance. AMS 4911 is primarily used in the manufacture of parts that require high strength, lightweight characteristics, and the ability to withstand extreme environments.<br/>
AMS 4911 titanium alloy plates are made from Ti-6Al-4V (Grade 5) titanium alloy, offering excellent strength, corrosion resistance, and performance at elevated temperatures. They are used in high-performance aerospace, industrial, and medical applications where strength-to-weight ratio and resistance to harsh environments are critical. The plates are available in a variety of thicknesses and finishes and can be heat-treated to optimize their mechanical properties.

 

 

Material Composition

 

Component

Content

Titanium (Ti)

90%

Aluminum (Al)

About 6%

Vanadium (V)

around 4%

Nitrogen (N)

≤ 0.05%

 

Mechanical Properties

 

Mechanical Properties

Data

Tensile Strength

Between 900–1200 MPa

Yield Strength

Approximately 830MPa

Elongation

10–15%

Modulus of Elasticity

Approximately:110 GPa (gigapascals)

Hardness

Around 330–370 HB

 

Applications

 

  • Aerospace: AMS 4911 is predominantly used in aerospace applications for parts like aircraft structural components, turbine engine components, landing gears, and fasteners, where high strength and low weight are essential.
  • Marine and Chemical: Due to its excellent corrosion resistance, the alloy is used in marine environments and chemical processing equipment.
  • Industrial: The alloy is also used for high-performance industrial applications, such as pressure vessels and heat exchangers.
  • Medical: Sometimes used in medical implants due to its excellent biocompatibility, though AMS 4911 is more commonly seen in aerospace.

 

Thickness Range

 

AMS 4911 plates are typically available in a range of thicknesses, from 0.5 mm to 100 mm or more, depending on the manufacturer's capabilities and customer requirements.

 

Surface Finish

Annealed

AMS 4911 plates are usually provided in an annealed (stress-relieved) condition for easier machining and processing.

Polished, Matte, or Mill Finish

The surface can vary from a polished finish to a matte or mill finish depending on the intended use and customer specifications.

Heat Treatment

 

  • AMS 4911 titanium alloy plates can be heat-treated to achieve specific mechanical properties, including solution treatment and aging. This process enhances the alloy's strength and hardness.
  • Typical heat treatment procedures involve heating the material to a specific temperature (usually around 900-1,000°C) and then quenching, followed by an aging process to further improve its properties.

 

Corrosion Resistance

 

  • AMS 4911 titanium alloy exhibits excellent corrosion resistance in both oxidizing and reducing environments, particularly in sea water, acids, and other harsh conditions.
  • The material naturally forms a protective oxide layer on its surface, enhancing its resistance to corrosion and making it suitable for harsh chemical environments.

 

Weldability

 

  • AMS 4911 can be welded using conventional titanium welding techniques, such as TIG (Tungsten Inert Gas) welding and MIG (Metal Inert Gas) welding, though care must be taken to control the heat and avoid contamination. Welding should be performed in an inert atmosphere to prevent oxidation.
  • Post-weld heat treatment may be required to restore mechanical properties and relieve residual stresses.

 

Form

AMS 4911 is typically supplied in the form of flat plates and can be custom cut to meet the needs of specific applications.

 

The plates are available in a variety of sizes, with custom dimensions possible depending on the manufacturer.

 

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