The Clusters were full of metal artifacts, but in alloys too tough to convert.

It was made from a very tough alloy, but it could heat up, jam, melt-any of a number of things.

They'd rattled on the tough alloy, at first; now they only burnished a thick and growing cocoon of ice.

We're trying to make tougher alloys, but I don't want to bore you with what we're doing.

It is also used to make very strong tough alloys.

The notched point can withstand higher thrust loads, like those encountered when drilling tough alloys, than conventional point geometry.

He watched the hull pyrometers, but the tough alloy could stand an amazing amount of atmospheric friction.

Even the podia, encrusted with ceramics and tough alloys, suffered from the ripping hail of protons in deep space.

The cutting laser was having trouble with the substance, even though it could cut through the toughest known alloys.

A tip like this should cut steel, even a really tough alloy.