As an expert in materials science and a fan of the Marvel Universe, I can provide an informed answer to your question. The strongest metal in the Marvel Universe is often considered to be Adamantium. Adamantium is a fictional metal alloy that is virtually indestructible and is known for its incredible strength and durability. It is best known for being used in the creation of Wolverine's claws and the skeleton of Colossus, both of whom are characters in the X-Men series.

Adamantium is depicted as being so strong that it can resist the crushing force of a collapsing building, the heat of a thermonuclear explosion, and even the full force of Thor's hammer, Mjolnir. It is also nearly impossible to melt or shape once it has been formed, which is why it is so valuable and rare.

However, it's important to note that the Marvel Universe is vast and contains many other powerful materials and metals, such as Uru, which is used to forge Thor's hammer, and Vibranium, which is found in Black Panther's suit and Captain America's shield. Each of these materials has its own unique properties and uses within the universe.

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Proto-Adamantium: The adamantium-vibranium alloy used in Captain America's shield is the strongest human-made material on Earth. It's greatest strength is its nearly immutable nature and resistance to being damaged or changed.read more >>