7005 and 6061 Alloy

pedal_power556 Posts: 31
edited November 2016 in Commuting chat
Which is lighter in general?



  • Unhelpful answer. It depends. 7005 is less dense than 6061, but also is inherently less weldable, if that's a word, and would benefit from reinforcement. Overall, for a frame, there'd be very little in it if said frame is built to equal durability.

    6061 would be my choice of those two, but 6069 is what my CAAD10 is made from, so that's my true answer.
  • Ok thanks
  • mr_evil
    mr_evil Posts: 234
    If this is about frames, then there is more to consider than just weight - 7005 is more prone to stress corrosion cracking than 6061.
  • The Rookie
    The Rookie Posts: 27,812
    7000 series alloys were popular but since the introduction of the CEN test for frames its much less popular.

    7000 series will usually build into a slightly lighter frame than 6000 series but its not a given.
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.