6061 Aluminio T6 vs 7075 aluminio

6061 Aluminio T6 vs 7075

Aluminum alloys 6061-T6 and 7075 are widely used in engineering applications, but they have different properties and are suited to different purposes. Below is a detailed comparison of these two alloys in terms of their mechanical properties, physical properties, and typical uses:

Comparison Between 6061-T6 and 7075 Aluminio

Propiedad6061-T6 Aluminum7075 Aluminio
Composition0.8-1.2% Mg, 0.4-0.8% Wa, 0.15-0.4% Cu, 0.04-0.35% Cr5.1-6.1% Zn, 2.1-2.9% Mg, 1.2-2.0% Cu, 0.18-0.28% Cr
Resistencia le tracción310 Mpa (45 Ksi)572 Mpa (83 Ksi)
Límite elástico275 Mpa (40 Ksi)503 Mpa (73 Ksi)
Elongación le rotura12%11%
Dureza (Brinell)95 HB150 HB
Xook elasticidad68.9 GPa (10,000 Ksi)71.7 GPa (10,400 Ksi)
Densidad2.70 g leti' cm³2.81 g leti' cm³
Resistencia le fatiga96 Mpa (14 Ksi)159 Mpa (23 Ksi)
Conductividad térmica167 W/m· K'uj130 W/m· K'uj
Resistencia le corrosiónJach ma'alo'obFair to Poor (without protective coating)
SoldabilidadJach ma'alo'obÓotsil
MaquinabilidadMa'alobFair to Good
Heat TreatmentHeat treatable to T6 conditionHeat treatable to T6 or T73 condition

Key Differences in Properties

  1. Strength:
    • 7075 Aluminio is much stronger, with a tensile strength of 572 MPa compared to 310 MPa for 6061-T6. This makes 7075 aluminum ideal for high-stress structural applications.
  2. Resistencia le corrosión:
    • 6061-T6 Aluminum Yaan jump'éel excelente resistencia ti' le corrosión, especially against atmospheric and marine conditions, while 7075 Aluminio has fair to poor corrosion resistance and often requires a protective coating or anodizing for use in corrosive environments.
  3. Soldabilidad:
    • 6061-T6 Aluminum is highly weldable, making it suitable for structures requiring frequent welding. 7075 Aluminio is difficult to weld and can suffer from cracking and brittleness after welding.
  4. Maquinabilidad:
    • 6061-T6 Aluminum is known for its good machinability, which is better than that of 7075 Aluminio, although 7075 still offers acceptable machinability for most applications.
  5. Densidad:
    • 7075 Aluminio is slightly denser (2.81 g leti' cm³) than 6061-T6 Aluminum (2.70 g leti' cm³), which can affect weight-sensitive applications.
  6. Conductividad térmica:
    • 6061-T6 Aluminum has better thermal conductivity (167 W/m· K'uj) compared to 7075 Aluminio (130 W/m· K'uj), making it preferable for heat-exchange applications.

Comparison of Uses

Application Area6061-T6 Aluminum7075 Aluminio
AerospaceAircraft fittings, fuel tanks, and fuselage structuresHigh-stress structural parts like aircraft wings, fuselage frames, and landing gear
AutomotiveChassis, wheel spacers, and engine componentsRacing components like suspension parts, gears, and shafts
MarineBoat hulls, masts, and marine fittingsNot typically used due to poor corrosion resistance
General ConstructionStructural components, piping, and framesNot common; only when high strength is needed
Sports EquipmentBicycle frames, camping equipment, and scuba tanksHigh-performance bicycle components, climbing equipment
ElectronicsHeat sinks and electrical fittingsNot typically used; 6061 is preferred for thermal applications
Consumer GoodsLadders, furniture, and household itemsPremium products where high strength is desired, such as rugged outdoor gear

Summary

  • 6061-T6 Aluminum is more versatile, easier to work with, and has excellent corrosion resistance, making it suitable for a wide range of applications, incluidos le marinos, automotor, construcción, ka electrónica.
  • 7075 Aluminio K'u'ubul jump'éel resistencia superior, Ba'ax ku betik beetike' uts utia'al aplicaciones ka'anal estrés bey le industria aeroespacial yéetel le nu'ukulilo'ob deportivos ti' ka'anal rendimiento, Ba'ale' yaan u peor soldabilidad yéetel resistencia ti' le corrosión, Limitar u búukinta'al ti' determinados entornos.