If you work in the manufacturing or aerospace industry, you might be familiar with AMS4203. It is a widely-used aluminium alloy known for its exceptional strength and durability. But what makes it unique, and why is it such a popular choice for various applications? This blog post will examine AMS4203 and discuss its composition, physical and mechanical properties, uses, and heat treatment.
What is AMS 4203?
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AMS 4203 Composition
AMS 4203 is an aluminium alloy consisting of 4.5-5.5% copper, 0.6-1.2% magnesium, 0.8-1.6% manganese, and 0.15% chromium. These elements are blended to create a high-strength alloy that can withstand extreme temperatures and pressure. Furthermore, AMS 4203 has excellent corrosion resistance and can be easily shaped and machined.
|Aluminum, Al||87.8 – 90.6|
|Zinc, Zn||5.70 – 6.70|
|Magnesium, Mg||2.10 – 2.60|
|Copper, Cu||1.50 – 2.0|
|Zirconium, Zr||0.10 – 0.16|
AMS 4203 Physical Properties
AMS 4203 has a high melting point of 582-630°C and a density of 2.79 g/cm³. It also has a low coefficient of thermal expansion, which means it can maintain its shape and size even when subjected to temperature changes. Moreover, it has good thermal and electrical conductivity, making it an excellent choice for electrical and electronic applications.
|Melting Point||475 °C|
|Modulus of Elasticity||71 GPa|
|Thermal Conductivity||150 W/m.K|
AMS 4203 Mechanical Properties
AMS 4203 has exceptional mechanical properties, making it ideal for high-stress applications. It has a tensile strength of 470 MPa and a yield strength of 400 MPa. Furthermore, it has high fatigue strength and can withstand cyclic loading without deformation or failure. AMS 4203 also has good machinability and weldability.
|Yield Strength||530 MPa|
|Elongation A50 mm||%8|
|Modulus of Elasticity||71 GPa|
AMS 4203 Equivalents
- AMS 4203
- AMS 4204
- AMS 4205
AMS 4203 Uses
AMS 4203 is widely used in aerospace, particularly in manufacturing aircraft structures, landing gear systems, and engine components. It is also used in the defence industry to produce armour plates, missile components, and high-pressure vessels. Additionally, it is used in the automotive and sports industries to produce high-performance parts and equipment.
AMS 4203 Hardness
AMS 4203 has a Brinell hardness of 140 HB, which means it is moderately hard and can resist deformation and wear. However, heat treatment can further strengthen it, which we will discuss next.
AMS 4203 Heat treatment
AMS 4203 can be heat treated to enhance its mechanical properties. It is typically solution heat treated at 535-565°C for several hours, followed by a quenching process. This process helps to dissolve the alloying elements and create a homogeneous microstructure. It can also be aged at 155-180°C for several hours to further strengthen the material.
AMS 4203 material is an aluminium alloy with exceptional strength, durability, and corrosion resistance. It is widely used in the aerospace, defence, automotive, and sports industries for various applications. Its composition, physical and mechanical properties, hardness, and heat treatment make it a reliable and versatile material for high-stress environments. Next time you encounter AMS 4203, you will better understand its properties and uses.
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