ThePipingMart Blog Grades AMS 4147 Aluminum Alloy – Composition, Properties and Uses

AMS 4147 Aluminum Alloy – Composition, Properties and Uses

AMS 4147

AMS 4147 is a popular aluminium alloy with excellent properties, making it a top choice for many industrial applications. Its unique composition yields impressive physical and mechanical properties ideal for use in aircraft structures, missile components, and automotive parts. This blog post will delve deeper into AMS 4147, exploring its composition, properties, uses, and heat treatment.

What is AMS 4147?

AMS 4147 (also known as 7075 Aluminium Alloy) is a specification that defines the requirements for a heat treatment process for aluminium alloys. This process shapes and strengthens the material for various industrial applications. With a keen eye for detail, aerospace manufacturers and other industrial sectors can trust the AMS 4147 specification to produce high-quality aluminium alloys that are fit for purpose. AMS 4147 has been developed to provide precise guidelines to ensure the final product is strong, durable, and resilient. This specification is a roadmap for achieving uniformity and consistency in heat treatment for optimum performance and durability.

What Form Is AMS 4147 Available at Piping Mart?

  • Pipes
  • Tubing

AMS 4147 Composition

AMS 4147 is an aluminium alloy that contains 5.6-6.5% Zinc, 0.25% Magnesium, and lesser quantities of Copper, Iron, Manganese, and Silicon. This specific composition is responsible for its excellent corrosion resistance and strength-to-weight ratio, which is crucial in applications that require lightweight yet strong materials.

Si

Fe

Cu

Mn

Mg

Cr

Zn

Ti

Others-Each

Others Total

Al

7075

0.40

0.50

1.2-2.0

0.30

2.1-2.9

0.18-0.28

5.1-6.1

0.20

0.05

0.15

Remainder

AMS 4147 Physical Properties

AMS 4147 boasts excellent physical properties that make it a suitable material for use in harsh and demanding environments. Its specific gravity is 2.75, while its melting point ranges from 582°C-640°C. It has a thermal conductivity of 120-130 W/m K and a coefficient of thermal expansion of 23.8 μm/m°C. Along with its high strength, AMS 4147 also has good weldability.

AMS 4147 Mechanical Properties

One of the advantages of AMS 4147 is the excellent mechanical properties that make it a sought-after material for various applications. Its yield strength is 413 MPa (60 ksi), while its ultimate tensile strength is 455 MPa (66 ksi). It has an elasticity of 10% and an elongation of 13%. AMS 4147 exhibits good fatigue resistance, ideal for structures subjected to cyclic loading.

Alloy-Temper

Tensile Strength

(ksi)

Yield Strength

(ksi)

Elongation

(%)

7075-O

33

15

16

7075-T6

83

73

11

AMS 4147 Uses

AMS 4147 finds numerous applications in various industries that require high-performance materials. It is commonly used in aircraft and missile structures, where its lightweight and high strength-to-weight ratio is highly advantageous. It is also used in automotive parts, oil and gas drilling equipment, and marine components.

AMS 4147 Hardness

The hardness of AMS 4147 varies depending on its heat treatment. In the T6 heat-treated condition, AMS 4147 can achieve a hardness of up to 115 Brinell hardness number (BHN). This hardness level is essential in applications where strength is a critical requirement.

AMS 4147 Heat Treatment

AMS 4147 is heat-treated to enhance its strength and other mechanical properties. The T6 heat treatment involves heating the material to 505°C-550°C for 2-6 hours, then quenching it in water or air and ageing it at 160°C-190°C for 6-8 hours. This heat treatment process yields the best strength, toughness, and ductility combination.

Conclusion:

AMS 4147 is a versatile aluminium alloy with impressive properties, making it a popular choice for various industrial applications. Its specific composition and heat treatment processes yield physical and mechanical properties ideal for harsh and demanding environments. The lightweight, high strength-to-weight ratio, excellent corrosion resistance, and good weldability of AMS 4147 make it invaluable for structures subjected to cyclic loading. We hope this guide helps you understand AMS 4147’s composition, properties, uses, hardness, and heat treatment processes.

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