Hexcel® HexWeb® CR-PAA™ 5/32-5056-0.0015 Phosphoric Acid Anodized Aluminum Honeycomb

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Hexcel® HexWeb® CR-PAA™ 5/32-5056-0.0015 Phosphoric Acid Anodized Aluminum Honeycomb
Categories:	Metal; Metal Foam, Mesh, or Honeycomb; Nonferrous Metal; Aluminum Alloy; 5000 Series Aluminum Alloy
Material Notes:	Grade is designated as "Cell Size-Alloy-Foil Gauge." The life cycle of aluminum honeycomb sandwich structures in a given application can be directly related to the quality of the bond between the face sheets that carry bending loads and the honeycomb that carries the shear loads. The adhesive is the interface between the facing and the core in the same way that the oxide on the aluminum and the primer that has been applied to it is the interface between the honeycomb substrate material and the bonding adhesive. This interface is critical to the performance of honeycomb bonded assemblies. HexWeb® CR-PAA™ is designed for aircraft structures that are exposed to demanding environmental conditions. HexWeb® CR-PAA™ outperforms standard MIL-C-7438 core in salt spray and HexWeb® crack propagation tests.
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Physical Properties	Metric	English	Comments

Density	0.0849 g/cc	0.00307 lb/in³	Nominal

Mechanical Properties	Metric	English	Comments
Compressive Yield Strength	>= 4.45 MPa	>= 645 psi	Bare, min
	>= 4.48 MPa	>= 650 psi	Stabilized, min
	5.65 MPa	820 psi	Bare, typical
	5.96 MPa	865 psi	Stabilized, typical
Compressive Modulus	1.65 GPa	240 ksi	Stabilized, typical
Shear Modulus	0.228 GPa	33.0 ksi	Plate Shear, W Direction, typical
	0.586 GPa	85.0 ksi	Plate Shear, L Direction, typical
Shear Strength	>= 1.72 MPa	>= 250 psi	Plate Shear, W Direction, min
	2.24 MPa	325 psi	Plate Shear, W Direction, typical
	>= 3.00 MPa	>= 435 psi	Plate Shear, L Direction, min
	3.79 MPa	550 psi	Plate Shear, L Direction, typical

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PHEXC298 / 98769

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