How much did medieval steel forged armor and weapons weigh?

Add around 8 pounds for a breastplate. As Isaac Hessel-Robinson points out, 55 pounds is about right for a set of custom-made plate armor. You mention “steel forged.” The density of steel is not very different from iron or bronze, so these figures will hold for most any metal armor of the same thickness. read more

A modern foot soldier in Afghanistan carries an average combat load of 28.3 kilos or 63 pounds, making a Fourteenth Century knight's combat load equivalent to that of a modern solider. There was a significant difference in that the weight of medieval armour was distributed over the whole body rather than substantially carried on the back. read more

between 2 and 3kilogrammes, depending on how complex the shape of head was (The more metal or larger the head, the heavier.) So about 5 pounds. read more