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. 2021 Apr 27;18(9):4670. doi: 10.3390/ijerph18094670

Table 1.

Classification of titanium.

Alloy Chemical Composition
Grade I Ti (2.15 Fe; 0.12 O2)
Grade II Ti (0.20 Fe; 0.18 O2)
Grade III Ti (0.25 Fe; 0.25 O2)
Grade IV Ti (0.30 Fe; 0.35 O2)
Grade V Ti (0.06 Al; 0.04 V)