Hexcel® HexWeb® CR-PAA™ 3/16-5052-0.0025 Phosphoric Acid Anodized Aluminum Honeycomb

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.

物理性能	额定值 (公制)	额定值 (英制)	测试方法
密度	g/cc	lb/in³	Nominal

机械性能	额定值 (公制)	额定值 (英制)	测试方法
压缩屈服强度	>= MPa	>= psi	Bare, min
	>= MPa	>= psi	Stabilized, min
	MPa	psi	Bare, typ
	MPa	psi	Stabilized, typ
压缩模量	GPa	ksi	Stabilized, typ
剪切模量	GPa	ksi	Plate Shear, W Direction, typ
	GPa	ksi	Plate Shear, L Direction, typ
剪切强度	>= MPa	>= psi	Plate Shear, W Direction, min
	MPa	psi	Plate Shear, W Direction, typ
	>= MPa	>= psi	Plate Shear, L Direction, min
	MPa	psi	Plate Shear, L Direction, typ