Carbon fiber vs aluminum is the question behind most lightweight engineering decisions. Here’s the spec-by-spec comparison that actually matters when you’re choosing a material.
Stiffness and weight
- Specific stiffness — carbon fiber is roughly 2× aluminum’s stiffness per unit weight
- Specific strength — carbon wins clearly for weight-critical parts
Other engineering factors
- Fatigue — carbon doesn’t develop microscopic cracks the way metal does
- Corrosion — carbon is inert; aluminum needs coatings
- Damping — carbon absorbs vibration better
- Cost & repair — aluminum is cheaper and easier to weld; carbon needs molding but pays back in lifecycle weight savings
When to choose which
Pick carbon when weight, stiffness and fatigue life dominate; pick aluminum when cost, repairability and simple fabrication lead. Taishi supplies both stock and custom carbon parts. Contactez nous for a material review.