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> it was built using 400,000 tonnes of steel, enough to build 60 Eiffel Towers. Except the Eiffel Tower is made of iron, not steel.
by fouronnes 8y ago
> it was built using 400,000 tonnes of steel, enough to build 60 Eiffel Towers.
Except the Eiffel Tower is made of iron, not steel.
- galago 8y agoI don't have a good source at the moment, but I think steel is somewhere around 97% iron by weight. The rest is carbon. Stainless steel has about 10% chromium.