6061 t6 അലുമിനിയം vs 7075 അലുമിനിയം

6061 t6 അലുമിനിയം 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 അലുമിനിയം

സ്വത്ത്6061-T6 അലുമിനിയം7075 അലുമിനിയം
രചന0.8-1.2% എം.ജി, 0.4-0.8% ഒപ്പം, 0.15-0.4% ക്യൂ, 0.04-0.35% Cr5.1-6.1% Zn, 2.1-2.9% എം.ജി, 1.2-2.0% ക്യൂ, 0.18-0.28% Cr
വലിച്ചുനീട്ടാനാവുന്ന ശേഷി310 എംപിഎ (45 ksi)572 എംപിഎ (83 ksi)
വിളവ് ശക്തി275 എംപിഎ (40 ksi)503 എംപിഎ (73 ksi)
ഇടവേളയിൽ നീളം12%11%
കാഠിന്യം (ബ്രിനെൽ)95 HB150 HB
Modulus of Elasticity68.9 GPa (10,000 ksi)71.7 GPa (10,400 ksi)
Density2.70 g/cm³2.81 g/cm³
Fatigue Strength96 എംപിഎ (14 ksi)159 എംപിഎ (23 ksi)
Thermal Conductivity167 W/m·K130 W/m·K
നാശന പ്രതിരോധംമികച്ചത്Fair to Poor (without protective coating)
വെൽഡബിലിറ്റിമികച്ചത്Poor
യന്ത്രസാമഗ്രിനല്ലത്Fair to Good
ചൂട് ചികിത്സHeat treatable to T6 conditionHeat treatable to T6 or T73 condition

Key Differences in Properties

  1. Strength:
    • 7075 അലുമിനിയം 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. നാശന പ്രതിരോധം:
    • 6061-T6 അലുമിനിയം മികച്ച നാശന പ്രതിരോധം ഉണ്ട്, especially against atmospheric and marine conditions, while 7075 അലുമിനിയം has fair to poor corrosion resistance and often requires a protective coating or anodizing for use in corrosive environments.
  3. വെൽഡബിലിറ്റി:
    • 6061-T6 അലുമിനിയം is highly weldable, making it suitable for structures requiring frequent welding. 7075 അലുമിനിയം is difficult to weld and can suffer from cracking and brittleness after welding.
  4. യന്ത്രസാമഗ്രി:
    • 6061-T6 അലുമിനിയം is known for its good machinability, which is better than that of 7075 അലുമിനിയം, although 7075 still offers acceptable machinability for most applications.
  5. Density:
    • 7075 അലുമിനിയം is slightly denser (2.81 g/cm³) than 6061-T6 അലുമിനിയം (2.70 g/cm³), which can affect weight-sensitive applications.
  6. Thermal Conductivity:
    • 6061-T6 അലുമിനിയം has better thermal conductivity (167 W/m·K) compared to 7075 അലുമിനിയം (130 W/m·K), making it preferable for heat-exchange applications.

Comparison of Uses

Application Area6061-T6 അലുമിനിയം7075 അലുമിനിയം
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, ഫ്രെയിമുകളുംNot common; only when high strength is needed
Sports Equipmentസൈക്കിൾ ഫ്രെയിമുകൾ, 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 അലുമിനിയം is more versatile, easier to work with, and has excellent corrosion resistance, making it suitable for a wide range of applications, including marine, automotive, construction, and electronics.
  • 7075 അലുമിനിയം offers superior strength, making it ideal for high-stress applications like aerospace and high-performance sports equipment, but it has poorer weldability and corrosion resistance, limiting its use in certain environments.