7005 Aluminium Alloy Bike Frame

Calling a bike with an aluminium frame an alloy bike is still considered the.

7005 aluminium alloy bike frame.

The numbers indicate the alloying elements nothing to do with the strength. Very few entry level mtbs are made of steel alloy and if they are the. Generally better quality frames use 6000 series alloys as the heat treatment also instills better material properties to the frame 7000 series alloys are often used on cheaper frames. Pure aluminium isn t strong enough to be used in bike frames and is mixed with other materials.

David caudery immediate media. 7005 is an aluminium alloy used bicycle frames due to its relative ease of welding it does not require expensive heat treating it is however harder to form making manufacture more challenging. Due to its inherent hardness 7005 aluminum bikes feel rougher when you ride them. It has an ultimate tensile strength of 350mpa a fatigue strength of 150mpa and a density of 2 78g cm compared to a ultimate tensile strength of 310mpa and fatigue strength of 96 5 mpa and a.

There are a few different alloys used in aluminium bikes with 6061 and 7005 being the most common. However the lower density will result in a frame weighing around 30 less than a steel frame. You might not realize it but bike frames bend when you ride the bike. Whilst explaining this is outside the scope of.

They absorb bumps and road vibration. The tensile strength of the alloy is 7005 t6 350 mp and alloy 6061 310 mpa yield stress 290 and 275 mpa respectively. There will be a further designation indicating the tempering process often t6 the alloy has gone through. There are two main aluminium alloys in use in the bike industry today 6061 and 7005.

Often considered that the aluminum alloy 6061 more suitable for bicycle frames than an alloy 7005 although the alloy 7005 and somewhat more durable. However in bike marketing terms a steel alloy frame would be billed as steel or chromoly. The 6061 alloy is softer making the bike s ride more comfortable. Must haves with all modern aluminium bikes are a decent full carbon fork and seatpost to help deflect.

So if alan farroll is in the market for a new bike he can be reassured that an alloy frame is going to be an alu alloy. Alloy is generally used to denote an aluminium alloy.