5/8" chain will be more then twice as heavy as 5/16th" chain. I believe the size is the diamater of the chain if you straightened out one of the links. We all know that area of a circle = Pi*(D/2)*2 ... So if the diamter doulbes, area goes up 4 times. So if you had the same size of link (which you wouldn't) a 5/8" chain would be 4x as heavy as a 5/16" chain. Since the links are physically larger then this value would probably increase to more like 5x.

This make sense?

Anyone care? lol


IronWorker