Single Butted – The Smart Weight-Saving Design
The HEXATI seat tube features a single butted profile – the wall thickness gradually transitions from thicker at the ends to thinner in the middle.
This design gives you the best of both worlds:Â strength where you need it, lightness where you can feel it.
Two Sizes – One for Every Build
Option 1: 27.2mm Seatpost Compatibility
Option 2: 31.8mm Seatpost Compatibility
Built to ASTM B338 Standards – Quality You Can Trust
Every HEXATI seat tube is manufactured to ASTM B338 specifications – the same standard used for aerospace hydraulic tubing. This means:
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Consistent mechanical properties – batch after batch
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Superior fatigue resistance – for long-term frame integrity
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Excellent weldability – compatible with standard TIG welding techniques
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Traceable material certification – full documentation available on request
"Bicycle frames are commonly manufactured using 3-2.5 certified to either an ASTM B-338 or a sports grade specification. ASTM B-338 meets all Aerospace Material Specifications for hydraulic tubing."
Technical Specifications at a Glance
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Build Better. Build Lighter. Build Titanium.
Whether you're a professional frame builder or an ambitious DIY enthusiast, the HEXATI Ti Gr.9 Single Butted Seat Tube gives you the foundation for a truly exceptional frame. Lightweight, incredibly strong, corrosion-proof, and beautiful – titanium is the material that keeps on giving.
Ready to start your next build?
Questions or Custom Orders?
Need a custom length, different diameter, or have a specific requirement?
📧 info@aerotibike.com
📧 leemom.yang@hotmail.com
💬 WhatsApp: +86 15353018848
HEXATI – Premium titanium tubing for riders who know better.
