ThePipingMart Blog Grades AMS 4050 Aluminum Alloy – Composition, Properties and Uses

AMS 4050 Aluminum Alloy – Composition, Properties and Uses

AMS 4050

AMS 4050 is a popular aluminium alloy used extensively in various industries. It is a high-strength, high-toughness alloy with excellent resistance to wear and tear, making it suitable for use in harsh environments. This alloy is ideal for high strength, durability, and stability applications. This blog post will discuss everything you need to know about AMS4050, including its composition, physical and mechanical properties, uses, hardness, and heat treatment.

What is AMS 4050?

AMS 4050 (also known as 7050 Aluminium Alloy) is a type of aluminum alloy commonly used in aerospace applications. It has excellent strength and durability, along with good corrosion resistance. This makes it popular for aircraft components like wings and fuselage panels. Its high strength-to-weight ratio also increases fuel efficiency and lower operating costs. AMS4050 is known for its ability to withstand extreme temperatures and harsh environments, making it a reliable choice for critical aviation parts. Overall, this aluminum alloy is an important material in the aerospace industry and plays a crucial role in ensuring the safety and efficiency of aircraft.

What Form Is AMS 4050 Available at Piping Mart?

  • Pipes
  • Tubing

AMS 4050 Composition

AMS 4050 T7451 material is an aluminium alloy with a primary alloying element of copper, which enhances the alloy’s strength and durability. The other primary elements in AMS 4050 sheet include magnesium, manganese, chromium, and iron. This unique combination of elements improves the alloy’s resistance to corrosion and wear and tear, making it ideal for use in various industrial applications.

Element Content (%)
Aluminum, Al 87.3 – 90.3
Zinc, Z 5.7 – 6.7
Copper, Cu 2.0 – 2.6
Magnesium, Mg 1.9 – 2.6
Zirconium, Zr 0.08 – 0.15
Iron, Fe ≤ 0.15
Silicon, Si ≤ 0.12
Mangnese, Mn ≤ 0.10
Titanium, Ti ≤ 0.06
Chromium, Cr ≤ 0.04

AMS 4050 Physical Properties

AMS 4050 T7451 has excellent physical properties, including a high melting point, high tensile strength, and good heat conductivity. The alloy’s density is relatively low and lightweight, making it ideal for use in applications where weight is a critical factor. This alloy is also ductile and malleable, which makes it easy to shape and form into various shapes.

Property Metric Imperial
Density 2.6-2.8 g/cm3 0.0939-0.101 lb/in3
Melting Point 494°C 920°F

AMS 4050 Mechanical Properties

AMS 4050 material’ s mechanical properties make it an ideal material for critical applications requiring strength and toughness. This alloy has excellent fatigue resistance, which means it can withstand cyclic loads without failing. It also has a high impact resistance, making it suitable for applications with common impact loads.

Property Metric Imperial
Hardness, Brinell 140 140
Hardness, Knoop 177 177
Hardness, Rockewell A 51.6 51.6
Hardness, Rockwell B 84 84
Hardness, Vickers 162 162
Ultimate Tensile Strength 524 MPa 76000 psi
Tensile Yield Strength 469 MPa 68000 psi
Elongation at Break 11% 11%
Modulus of Elasticity 71.6 GPa 10400 ksi
Poisson’s Ratio 0.33 0.33
Shear Modulus 26.9 GPa 3900 ksi
Shear Strength 303 MPa 44000 psi

AMS 4050 Equivalents

  • AMS 4108
  • AMS 4201
  • ASTM B247
  • ASTM B316
  • QQ A-430

AMS 4050 Specifications

  • AMS 4050: 7050-T7451 Plate
  • AMS 4107:7050-T74 Die Forging
  • AMS 4108:7050-T7452 Hand Forgings
  • AMS 4201: 7050-T7651 Plate
  • AMS 4333: 7050-T7452 Forgings
  • AMS 4340: 7050-T76511 Extrusions
  • AMS 4341: 7050-T73511 Extrusions
  • AMS 4342: 7050-T74511 Extrusions
  • ASTM B247
  • ASTM B316
  • QQ A-430
  • DMS-2233
  • BMS 7-323

AMS 4050 Uses

AMS 4050 sheet is a versatile alloy widely used in various aerospace, marine, and defence applications. It is commonly used to manufacture aircraft and spacecraft parts, shipbuilding, and military equipment. The alloy’s strength and durability make it ideal for use in harsh environments, where it must withstand extreme temperatures, pressure, and corrosion.

AMS 4050 Hardness

AMS 4050 plate is a high-strength alloy with excellent hardness. Its hardness is measured using the Brinell hardness test, which measures the indentation left by a hardened steel ball under a particular load. The typical Brinell hardness for AMS 4050 is around 150-170, which is relatively high compared to other aluminium alloys.

AMS 4050 Heat Treatment

AMS 4050 wire can be heat-treated to improve its strength and other mechanical properties. Heat treatment involves heating the material to a specific temperature and then quenching it in water or oil. This process creates a fine-grained microstructure and a high strength level, making the alloy suitable for critical applications requiring high performance.

AMS 4050 Density

AMS 4050 density is a crucial aspect in the manufacturing and design of various industrial components. Density refers to the measure of how tightly packed molecules are in a given material. In the aerospace industry, AMS 4050 density is used to determine the quality and strength of materials used in aircraft components. It is also essential in calculating the weight of a component, which in turn influences the fuel consumption of an aircraft. Engineers and manufacturers rely heavily on the density of a material in order to determine its suitability for specific applications. Accurate measurements of density can mean the difference between a successful project and a costly failure. Therefore, it is essential that all parties involved in the manufacturing process are well-versed in the use of AMS 4050 density and its importance.


AMS 4050 material is a unique aluminium alloy with exceptional physical and mechanical properties, making it ideal for use in critical applications where strength, toughness, durability, and wear resistance are essential. Its copper, magnesium, manganese, chromium, and iron composition enhances its resistance to corrosion and other environmental factors, making it ideal for use in harsh environments. Its versatility means it is used widely in various applications, including aerospace, marine, and defence. AMS 4050 is a top-quality alloy that can be heat-treated to improve its properties for optimal performance.

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