HY-80 is a derivative of Military grade plate. There are several including AR plate (Abrassion Resistant).
A57250 grade plate is in reality no different then A57250V or "Charpy" tested except the V extention means it has passes the gulliteen test. You will find in many cases these plates are interchangable.
A57250 grade plate is in reality no different then A57250V or "Charpy" tested except the V extention means it has passes the gulliteen test. You will find in many cases these plates are interchangable.
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