A comparison of various properties of biometals along with their key areas of application [16]

MetalBio-compatibilityCorrosion ResistanceStrength-Weight Ratio (MPa/g/cm3)Elastic Modulus (GPa)CostKey Applications
MagnesiumGoodLow~130–150~45ModerateTemporary implants, biodegradable screws
Cobalt-chromium (Co-Cr)GoodExcellent~70–90~200–240ModerateJoint replacements (hips, knees)
Stainless steel (316L)ModerateGood~25–30~200LowBone plates, screws, temporary implants
Gold (Au)ExcellentExcellent~5–10~80Very highNeural and cochlear implants
Titanium (Ti)ExcellentExcellent~100–120~110HighOrthopedic implants, dental implants
Platinum (Pt)ExcellentExcellent~10–20~170Very highElectrodes, specialized implants