company tower banner
Showa Aircraft Industry Company Logo

PAA-SFH® PAA-SFH® (Phosphoric Acid Anodized-Showa Flexible Honeycomb) 3.1-5052-19

1 of 1 products in this brand
PAA-SFH® PAA-SFH® (Phosphoric Acid Anodized-Showa Flexible Honeycomb) 3.1-5052-19 is an aerospace grade 5052 aluminum honeycomb materials produced from phosphoric acid anodized aluminum sheets. Phosphoric acid anodize gives an excellent corrosion resistance to aluminum alloy, and the surface treatment system with a corrosion prohibited primer provide the greatest bondability and fatigue strength under critical conditions such as hot & wet condition.

Functions: Core Material

Core Type: Aluminum Honeycomb

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Name
Composite Materials Functions
CAS No.
7429-90-5
EC No.
231-072-3
Structural Appearance

PAA-SFH® PAA-SFH® (Phosphoric Acid Anodized-Showa Flexible Honeycomb) 3.1-5052-19 - Structural Appearance

Features & Benefits

Features
  • Aerospace structural grade honeycomb.
  • Superior corrosion protection compared to standard aluminum honeycomb.
  • Enhanced bondability and fatigue strength.
  • Highest strength and rigidity to weight for sandwich construction.
  • Available in 5052 aluminum alloys.

Applications & Uses

Composites End Use
Applications

PAA-SFH has been developed to enhance the properties of standard aluminum honeycomb against the corrosion. The enhanced corrosion protection of PAA-SFH can provide a potential to reduce a life cycle cost or/and to reduce manufacturing cost occurred for additional processes to improve corrosion protection and durability of the standard aluminum honeycomb. For this reason, PAA-SFH will be an alternative for the standard aluminum honeycomb being used for the bonded assemblies of aircrafts.

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Density3.1pcf-
Compressive Strength360.0psi-
Plate Shear Strength (L Direction)150.0psi-
Plate Shear Strength (W Direction)80.0psi-
Plate Shear Modulus (L Direction)35000.0psi-
Plate Shear Modulus (W Direction)14500.0psi-

Technical Details & Test Data

Product Information

Type Designation PAA-SFH is designated as follows:

Material, Alloy, Density, Foil Thickness Example: PAA-SFH 4.1-5052-25

  • PAA-SFH:PAA aluminum flexible honeycomb.
  • 5052 : 5052 aluminum alloy.
  •  25: Foil thickness in ten thousandths of an inch.
  • 4.1:nominal core density in pound per cubic foot.


Standard Dimensions

Alloy L Direction W Direction T Minimum
5052 36” +4/-0” 96” +8/-0” 0.200”

Tolerances on cut thickness are as follows:
±0.005” for 0.120” to 4.000” Thickness
±0.062” for 4.001” and over