2.656 lbs.per square ft.
A steel plate of that size would weigh approximately 368 pounds.
~3.3oz
A standard 9-inch styrofoam plate typically weighs around 5 grams.
A steel butt plate typically weighs around 6-10 ounces, depending on the specific design and thickness of the plate.
The weight of a plate can vary widely depending on the material it is made of. A typical dinner plate made of ceramic or porcelain may weigh around 0.5-1 kg. However, this can vary significantly if the plate is made of a different material such as glass or plastic.
26 gauge galvanized is 1.52 pounds per square foot.
500-600lbs
~3.3oz
A pound.
A steel plate of that size would weigh approximately 368 pounds.
~3.3oz
It weigh about as much as a bowl of spaghetti
4-6 lbs.
A gym plate typically weighs between 2.5 to 45 pounds, depending on the size and type of plate.
i believe the answer is 590
7.395 lbs.
You need to provide more information - length and diameter or dimensions across flats of the post. I can then tell you roughly what it will be.