Aluminum went from costing more than gold to becoming one of the cheapest industrial metals in less than two decades. The turning point was 1886, when two engineers independently discovered an affordable way to extract it. By the mid-1890s, prices had collapsed, and by the early 1900s aluminum was cheap enough to compete with copper in electrical wiring.
A Metal More Precious Than Silver
For most of the 1800s, aluminum was a curiosity. It exists in enormous quantities in the Earth’s crust, but it bonds so tightly to oxygen and other elements that separating pure aluminum required expensive chemical processes. In 1859, a pound of aluminum cost around $17, roughly the same price as silver. By the early 1880s it was still sold in tiny troy-ounce quantities like a precious metal.
The most famous symbol of aluminum’s former status sits on top of the Washington Monument. When the monument was completed in 1884, engineers placed a small aluminum pyramid at its apex. At the time, aluminum cost $1.10 per ounce, twice the price of silver. The metalsmith charged $225 for the six-pound capstone, well above the original $100 estimate. It was, at that moment, the largest single piece of aluminum ever cast, and visitors reportedly lined up to look at it on display before installation. Choosing aluminum for the capstone was meant to signal prestige.
The 1886 Breakthrough That Changed Everything
The critical invention arrived in 1886, when Charles Martin Hall in the United States and Paul Héroult in France independently figured out the same thing: you could dissolve aluminum ore in a molten mineral bath and use electricity to pull the pure metal out. This process, now called the Hall-Héroult process, replaced the old chemical methods and slashed production costs dramatically. A complementary technique developed by Carl Josef Bayer in 1889 made it cheaper to prepare the raw ore, completing the puzzle.
Hall co-founded the Pittsburgh Reduction Company in 1888 (later renamed Alcoa) and began producing aluminum at industrial scale. The combination of cheap electricity and these new processes meant that for the first time, factories could produce aluminum in bulk rather than ounce by ounce.
The Price Collapse of the 1890s
The drop was swift. By 1895, domestic production in the United States had already reached one million pounds per year, a volume unthinkable a decade earlier. Producers deliberately kept prices low to attract new customers and open up new markets. By 1914, aluminum sold for about 19 cents per pound. That’s a drop from the $17-per-pound range of the 1850s to under 20 cents in roughly half a century, with most of that decline happening in the single decade after 1886.
In the early 1900s, aluminum makers specifically targeted the electrical industry, pricing aluminum to undercut copper for power lines and wiring. This strategy worked. Aluminum went from a novelty to a mainstream industrial material in a generation.
When Ordinary People Started Using It
Aluminum cookware began appearing in the late 1890s, right as prices fell. Over the first two decades of the 1900s, aluminum pots and pans gradually replaced copper and cast iron in many households. The metal was lighter, didn’t rust, and heated evenly. Its affordability made it accessible to average families rather than just wealthy collectors.
World War I temporarily disrupted this trend. When the war broke out in 1914, demand for aluminum surged because it was essential for building airplanes and manufacturing munitions. Prices spiked and shortages appeared. But once the war ended, production capacity had expanded so much that aluminum remained permanently cheap. By the mid-20th century, six major companies dominated global aluminum production, and the metal had become so ordinary it was used for beverage cans, foil wrap, and window frames.
Where Aluminum Prices Stand Today
Modern aluminum trades on the London Metal Exchange at roughly $3,400 per metric ton, which works out to about $1.55 per pound. Adjusted for inflation, that’s a tiny fraction of its 19th-century price. The metal that once sat in jewelry cases next to gold is now one of the most produced and recycled materials on the planet, with global output exceeding 60 million metric tons per year.
The short answer: aluminum became cheap between 1886 and 1895, driven by a single electrochemical invention that turned a rare curiosity into an industrial commodity in under a decade.