ASM4471 (Investment) & AMS 4482 (Sand) ALUMINIUM COMPOSITE CASTING ALLOY

Casting > Metallurgy

A20X as cast microstructureAs-cast microstructure

The above images are supplied courtesy of the University of Toledo, Ohio

To make a comparison with the microstructure of additive manufactured parts made by laser powder bed fusion click here.

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Titanium diboride particles remain segregated to the grain boundaries.

A20X Cast T7 microstructure

STOA, T7 microstructure

Yield Strength

  • A356 – 130 MPa
  • D357 – 260 MPa
  • A205 – 420 MPa

Ultimate Tensile Strength

  • A356 – 205 MPa
  • D357 – 350 MPa
  • A205 – 470 MPa

High strength

A20X™ is the strongest aluminium casting alloy with typical mechanical properties of A20X™ cast parts up to 475MPa UTS, 415MPa yield and 3% elongation.

Fatigue

The A20X™ casting alloy offers fatigue properties equivalent to 7050 series wrought aluminium –  far superior to any other aluminium casting alloy.

 

Temperature

The A20X™ casting alloy can produce parts that can operate at temperatures at least 50 degrees higher than the limits of conventional aluminium casting alloys.

The world of A20X™

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