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AZ91D Magnesium

The lightest common die-casting alloy, chosen whenever weight reduction matters most.

Example: cast AZ91D Magnesium

What is it?

A magnesium die-casting alloy offering the lightest weight among common die-cast options.

Key behavior

Roughly a third lighter than equivalent aluminum parts, with good strength-to-weight ratio.

Why choose it

Weight-critical die-cast parts — consumer electronics, automotive components — where every gram matters.

Applications

Laptop frames, automotive steering wheel skeletons, drone arms.

Casting notes

The lightest standard die-casting option — worth specifying whenever weight reduction is the priority.

Properties

Density1.81 g/cm3
Typical HardnessBrinell 60-75 HB (as-cast)
Typical Strength20,000-33,000 PSI tensile
Lead TimeConfirmed per RFQ
FinishingConfirmed per RFQ
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