Originally Posted by asmallsol
(Being a material's engineering student, and I'm going to just go by assumptions here)
their metrological composition is different. This means that there is going to be a difference in strength and toughness in the two cassettes.
you mean 'metallurgical'?
metrology is the science of measurements, metallurgy studies the makeup of all types of metals.
metallurgy seems more appropriate in this case.