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How to call out tungsten heavy alloy on a drawing: ASTM B777 vs AMS 7725F, class and type, certificates, DFARS wording, and why MIL-T-21014 is legacy.

Tungsten is 2.45 times denser than steel only in pure form. See the real density ratio for heavy alloy, worked examples, and how to check it yourself.

Tungsten heavy alloy is 1.5 to 1.66 times denser than lead, so parts shrink by a third or more. Where it wins, where lead wins, and what non-toxic means.

What is the melting point of tungsten, and does it matter for the part you are designing? Pure tungsten melts at 3,422 °C (6,192 °F), higher […]

Why does a bar of tungsten heavy alloy chew through a carbide insert that would cut a hundred parts in steel? The short answer is density […]

Could a bar stamped “10 oz gold” actually be tungsten underneath, and would a scale catch it? In 2012 a jeweler in Manhattan’s Diamond District drilled […]

Defense programs are moving off Chinese tungsten because China is actively closing the door on the other side, not only because a regulation is telling U.S. […]

Tungsten alloy vs steel comes down to three numbers that matter more than the rest: density, stiffness, and yield strength. Tungsten heavy alloy runs about 2.2 […]

Domestic tungsten sourcing means the material in your part can be traced, step by step, back to a mine and a melt outside of China, Russia, […]