In my fantasy setting in development,tin is significantly more common than in our world, leading to bronze armour and weapons being much cheaper. Due to metallurgy not being as advanced, iron is still not commonly used in armour, being too difficult to work with much as it was in our own history for quite some time.
However,due to the threats faced by the peoples of this era and their natural desire to provide further protection to their elite warriors;full plate harnesses were created.
My question is how good would quality bronze be for this purpose, and would it be as widespread as normal plate armour was in our own history as a result?
Edit:Requested since people may not see the comments.
As many people have pointed out,the Dendra Panoply was indeed bronze plate armour. I am also aware of the use of bronze for breastplates & helms well into the early medieval period. Keep in mind I am asking asking IF given how common tin is in setting (directly lowering the price of bronze & its value substantially) bronze would be a good alternative to cheap iron for use in a full plate harness. These people may not have metallurgy as advanced,but that does not mean they are exactly like our bronze age. They are closer to the Early Medieval era but their metallurgy lags behind comparatively
As such they can and do create chainmail. With bronze and even iron being used. The main issue is that they cannot properly forge large plates of iron. Limiting the usefulness of it for use in plate or segmented plate. Hence bronze is used instead due to its abundance.
The knights in question can serve both on foot (as foot knights) or as heavy cavalry. This does not mean they wear the same armour for both,much like in our own history. However I will mention that most knights could and would fight on foot even if unhorsed. For it was only post-gunpowder that armour began to get extremely heavy in an attempt to proof armour versus firearms. (which had varied results and proved overly encumbering for a full set of armour)
The knights here use bronze plate much in the style of the Early Medieval period. (A time where most plate was bronze and not iron in history)