7050 vs 7075 Aluminum: What’s the Difference?
Aluminum is a widely used form of metal that caters to many industries and is a popular choice.
Aluminum has different grades, with each grade having unique properties. The most popular grades of aluminum are 7050 and 7075 aluminum.
If you are looking to learn about a comparison of 7050 vs 7075 aluminum, the guide below can help you.
What’s 7050 Aluminum Alloy, and what are the Pros and Cons?
7050 aluminum offers excellent strength, followed by corrosion resistance. It offers aluminum, copper, magnesium, and zinc. The presence of zinc enhances its strength, whereas magnesium makes it hard, and copper also helps with precipitation hardness.
The pros and cons of the 7050 aluminum alloy are as follows:
Pros
- Alta resistencia
- Superior corrosion resistance
- Excellent crack resistance
- Highly machinable
- Offers fracture toughness
- Supports heat treatments
Contras
- Unsuitable for welding
- Offers low electrical conductivity
What’s 7075 Aluminum Alloy, and What are the Pros and Cons?
7075 aluminum has zinc as a major alloying element, which adds strength to it. 7075 is the strongest alloy and has excellent shear strength. It is opted for aircraft due to its strength. However, it has less resistance against corrosion and is expensive.
Some of the pros and cons of aluminio 7075 are as follows:
Pros
- Excellent shear and tensile strength
- Offers high formability
- Superior fatigue resistance
Contras
- It is an expensive grade of aluminum
- Offers limited corrosion resistance
- Less machinable
What is the Chemical Composition of Both Aluminum Alloys?
Aluminum 7050 has more aluminum, magnesium, zinc, and copper. Meanwhile, aluminum 7075 has iron, silicon, chromium, manganese, zirconium, and titanium.
Differences in Characteristics of 7050 and 7075 Aluminum Alloy
The two grades of aluminum are different in many ways, and this section highlights the difference between 7050 vs 7075 aluminum.
Límite elástico
Aluminum 7050 has a high yield strength, and when subjected to heat treatment, it becomes more resistant to deformation. 7075, on the other hand, also has a high yield strength but not as high as 7050.
Elasticidad
Aluminum 7050 can withstand high stress due to higher elasticity, whereas 7075 is slightly brittle and less elastic.
Densidad
The density of aluminum 7050 and 7075 is 2.8 g/cm3, which is lightweight and durable.
Fuerza
The strength of 7050 is high and has enhanced fracture toughness; however, 7075 offers high tensile strength and less toughness.
Dureza
7050, when subjected to heat treatments, turns out to be harder, whereas 7075 is slightly softer than 7050.
Welding
7050 is less weldable as it has high strength and may end up cracking. 7075 is also challenging to weld and may crack due to stress corrosion.
Resistencia a la corrosión
The corrosion resistance of 7050 is high, and hence, it is used for marine and outdoor applications. Meanwhile, 7075 has low corrosion resistance and requires secondary finishing.
Maquinabilidad
Both 7050 and 7075 are machinable, but 7050 offers slightly higher machinability than 7075.
Conductividad térmica
Aluminum 7050 offers less thermal conductivity, and 7075 has high thermal conductivity. 7075 is suitable for applications that need heat dissipation.
Resistencia a la temperatura
Aluminum 7050 has high stability and performance when subjected to high temperatures. 7075 offers less stability at high temperatures and remains stable at moderate temperatures.
Heat Treatable
Both aluminum alloys 7075 and 7050 are heat-treatable and attain hardness when subjected to heat treatments.
Coste
The cost difference between the two alloys is not much, but due to the extensive strength offered by 7075, it is slightly more costly than 7050.
Aluminum 7050 vs 7075 Properties Table
A glance at the table below gives a comparison of the two aluminum grades.
| Propiedad | 7050 Aluminum Alloy | 7075 Aluminum Alloy |
| Límite elástico | 503 MPa | 503 MPa |
| Elasticidad | 71.7 GPa | 71.7 GPa |
| Densidad | 2.80 g/cm³ | 2.81 g/cm³ |
| Fuerza | High, with fracture toughness | High, with lower toughness |
| Welding | Difficult, prone to cracking | Difficult |
| Resistencia a la corrosión | Excelente | Bien |
| Resistencia a la temperatura | Better at high temperatures | Moderate temperature resistance |
Applications of 7050 vs 7075 Aluminum Alloy
Aluminio 7050
Aluminum 7050 is known for its excellent strength and cocorion resistance and is used widely in many applications.
- Structural components of aircraft
- Componentes de automóviles
- Pressure vessels
- Manufacturing of molds and dies
Aluminio 7075
The high shear strength and durability of aluminum 7075 make it suitable for various applications, and some of these are given below.
- Piezas de motor
- Tool manufacturing
- Parts of rockets
- Skins for aircrafts
- Equipamiento deportivo
Why Choose DEK to Custom 7050 or 7075 Aluminum Parts?
DEK is one of the leading manufacturers of components of various materials. We offer a wide range of aluminum grades to choose from, and 7050 and 7075 are among them.
Our machinists are experienced and trained. We use highly advanced machining processes to design precise and exceptional components.
Conclusión
When choosing between the two alloys of aluminum 7075 and 7050, the most important thing is understanding their differences.
The guide above must have given you a complete insight into the comparison, and now you can easily choose them for your upcoming projects.
Preguntas frecuentes
What is 7050 aluminum equivalent to?
Aluminum 7050 is equivalent to AMS 4201, AMS 4108, and ASTM B247.
What aluminum is stronger than 7075?
6061 aluminum offers to be a stronger choice compared to 7075.
What is the difference between 6061 T6 and 7050?
Aluminum 7050 offers high strength and lightweight compared to 6061 but at the same time, is an expensive choice too.
