As-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.
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.