structural steel cost per ton
Metal Fabrication Costs. As a good rule of thumb the cost of metal fabrication is about three times the cost of the steel itself. One ton of steel costs about $400. To have this fabricated and one coat of primer applied it would cost approximately $1,200-$1,500 per ton of structural steel.If you are looking for other metals, or perhaps sheet metal fabrication of various designs, prices can go up as high as $2,500 per ton.The above figures are just a rough guide.Prices will go up if you need fabricated steel longer than 30ft or if the planned building has an atypical design.f you are looking for other metals, or perhaps sheet metal fabrication of various designs, prices can go up as high as $2,500 per ton. The above figures are just a rough guide. Prices will go up if you need fabricated steel longer than 30ft or if the planned building has an atypical design.