Cryostat

Next phase for lower cylinder

At approximately 250 tonnes, the second tier of the ITER cryostat's lower cylinder represents only 15 percent of the cryostat's total weight. Still, in order to weld together its many segments, no less than 1.3 tonnes of filling metal will be required—another amazing figure that opens a window into the unique world of the super-massive ITER components ...
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Working in pairs, one man on either side of the massive steel plates, welders will use approximately 1.3 tonnes of filling metal to finalize the welding of the second tier of the cryostat's lower cylinder.