What is Implant Grade?

For titanium to be considered implant grade it must meet strict ASTM-F136 standards, ensuring biocompatibility and safety for human use. The alloy, Ti-6Al-4V ELI (Grade 23), contains extra low interstitials and undergoes rigorous testing including chemical analysis, tensile, and bend tests. Without certification, G23 titanium is only suitable for non-implant applications such as in aerospace and sports equipment.

Manufacturers provide a mill certificate (MTR) verifying compliance, which reputable companies often confirm through third party independent testing. Some manufacturers also comply with DFARS regulations, ensuring the titanium is sourced and processed to the highest quality and traceability standards. Jewellery companies may have these certificates available on their website or by request. After confirmation, the titanium is hot and cold worked into its final shape, then finished with grinding and polishing following ASTM-F86 and ASTM-F2791 standards, with ongoing quality control.

This extensive process guarantees biocompatibility and corrosion resistance, preventing adverse reactions or degradation over time.

If you’re ever unsure about the grade of titanium being used for your piercing, ask your piercer. Still unsure? Request to see mill certificates or stick to those using brands that you know follow these standards!

Above is an example of a mill certificate, in particular for Neometal dated 2021. Source: https://www.safepiercing.org.au/certs/