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            "headline": "Titan G23 vs. ASTM F-136 – what is the difference?",
            "url": "https://www.star-piercing.ch/eng/Titan-G23-vs-ASTM-F-136-what-is-the-difference",
            "description": "In most cases, there is no real difference in the material itself—only in the name...",
            "articleBody": "In short: There is usually no real difference in the material itself—only in the name.\n\n**Titanium G23**\n\n- Designation for the alloy Ti-6Al-4V ELI\n- \"ELI\" = Extra Low Interstitials (particularly pure titanium)\n- Highly biocompatible\n- Frequently used for implants and high-quality piercing jewelry\n- Nickel-free and corrosion-resistant\n\n**ASTM F-136**\n\n- ASTM F-136 is not an alloy, but a standard.\n- This standard defines the exact requirements for medical implant titanium (chemical composition, purity, mechanical properties).\n- The material is also Ti-6Al-4V ELI.\n\n**The real difference**\n\n- G23 describes the titanium alloy\n- ASTM F-136 describes the quality and testing standard\n\n**Conclusion**\n\nIn most cases, manufacturers mean practically the same material when they refer to \"titanium G23\" and \"ASTM F-136.\" The difference is that ASTM F-136 additionally guarantees that the titanium is medically tested and complies with standards.",
            "datePublished": "2026-02-26T15:15:24+01:00",
            "image": "https://www.star-piercing.ch/media/image/news/37/xl/wiki---titan-g23-vs_preview.png",
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                "Wiki Piercing",
                "Wiki Jewelry"
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