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

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.

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™