Are Grade 5 Titanium Bolts Stronger Than Steel? The Real Strength Comparison

If you've been shopping for titanium hardware for your Surron, Talaria, E-Ride Pro, or any other light e-moto, you've probably seen the claim: "as strong as steel, 45% lighter." But is it actually true? Let's break down the real numbers.

The Tensile Strength Numbers

Grade 5 titanium — also known as Ti-6Al-4V — typically delivers an ultimate tensile strength in the 895–1000+ MPa range, with yield strength around 830–910 MPa. That places it roughly equivalent to Class 10.9 or SAE Grade 8 steel in tensile terms.

In other words: yes, Grade 5 titanium is genuinely high-strength hardware — not a compromise.

The Real Advantage: Specific Strength

Where titanium truly separates itself is specific strength — strength per unit of weight. Titanium is approximately 40–45% lighter than steel at the same volume. That means for every gram of bolt, you're getting comparable or better performance than steel.

For chassis, brake, suspension, and body hardware on light e-motos, this is a meaningful real-world advantage. Less unsprung weight, less rotating mass, and a cleaner, lighter build overall.

Where Titanium Isn't the Right Choice

Grade 5 is not a universal replacement for Class 12.9 steel in extreme shear or highly loaded engine applications. If you're bolting together a high-compression engine or a structural joint under extreme cyclic load, 12.9 steel may still be the right call.

But for the vast majority of e-moto hardware — axles, fork clamps, body bolts, brake hardware, frame accessories — Grade 5 titanium is more than sufficient and often the smarter choice when weight and corrosion resistance matter.

Bottom Line

Strength is comparable to high-grade steel. The weight savings and corrosion resistance make it the smarter choice for most riders. If you're ready to upgrade, browse our full range of titanium hardware and titanium full body bolt kits — all Grade 5, all shipped same day from Chicago.