Is scandium stronger than aluminum?
Scandium alloys are about 10% stronger than other aluminum alloys used for bike frames, which is a significant improvement. Scandium frames are often ultra-light high end frames, so the resulting frame may be less strong than typical aluminum frames.
Is scandium good for bike frame?
So, “scandium” is a perfectly good frame material, if used appropriately.
Which is lighter scandium or aluminum?
Scandium are generally lighter than aluminum.
Is scandium stronger than steel?
That’s because steel is more durable than scandium. It’s a stronger frame, with thicker tubing, at the sacrifice of weight.
What is scandium alloy?
Scandium is a strong grain refiner and an effective recrystallization inhibitor for aluminum alloys. It has a significant effect on the structure and properties of the alloy, and greatly improves the strength, hardness, weldability and corrosion resistance of the alloy.
What does scandium have to do with bikes?
Scandium works by convincing aluminum molecules to restructure themselves. This is especially valuable in high-strength aluminum, like 7005 alloy. Traditionally, 7005 alloys make light, strong, forged or CNC machined bicycle components, but can’t be welded because they weaken when they melt.
Is scandium lighter than titanium?
Scandium is lighter. Titanium is stronger, resistant to corrosion or other forms of attack by acids. As far as shafts go, Titanium alloys can be as strong as steel, and about 45% lighter.
What is scandium aluminum?
Aluminum Scandium alloy is a kind of high-performance aluminum alloy. There are several ways to improve the performance of aluminum alloy. In the past 20 years, micro-alloying and toughening is the frontier of high-performance aluminum alloy research.
Is scandium alloy strong?
Scandium delivers transformative strength without the need for problematic and costly heat treatments. Specifically, scandium additions can increase yield strength on a 5000 Series to between 300Mpa and 450Mpa, depending on the amount of addition, while maintaining elongation (ductility) figures of 12-15.
What is a scandium frame?
That said, “scandium” as a term in frame construction, refers to an aluminum alloy with a small percentage of scandium added to improve weldability. This allows for shorter butts in the tube (eg: less length of increased thickness at the joint) which typically yeilds a more responsive ride.
What are the benefits of scandium alloy?
Scandium alloyed with Aluminum improves strength and weldability. It makes for a better frame. The addition of Scandium to alu seems to be documented to improve stiffness by up to 10%. However, Scandium frames oftem seem to be built to drop more than 10% off a brand’s top alu frame. This makes you end up with a flexier frame, IME.
What is the difference between Al rig and scandium rig?
Scandium is less harsh and less rigid (also easier to weld). My experience from these two metals in bikes is an AL rig and my scandium Dos Niner. You can’t really compare the bikes or the ride so that really isn’t valid, however, I can say that my rig frame cracked at a weld and my dos niner is still going strong.
Why choose aluminium frame bikes?
Aluminum frame bikes are among the best selling models and according to statistics they represent the segment with the biggest sales volume on the market.
