Ti Grade 4 — highest-strength commercially pure titanium. Rm 550 MPa. For medical implants, aerospace fasteners and chemical plant requiring higher strength than Grade 2.
Ti Grade 4 per ASTM B265 / ISO 5832-2. Highest oxygen content (max 0.40%) of CP titanium grades gives Rm 550 MPa — 60% higher than Grade 2 (345 MPa). Outstanding corrosion resistance identical to Grade 2. Used where Grade 2 strength is insufficient but titanium alloy (Ti-6Al-4V) biocompatibility or cold-forming properties are required. Standard for dental implant fixtures and medical device housings.
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