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AXIOM Materials
Axiom announces new website launch Jun 3rd
AXIOM Materials
AHK KRAFT PAPER/PHENOLIC COATED HONEYCOMB
AHK is a structural Kraft paper honeycomb which conforms to MIL-H-21040 C and ASTM E 1091. It is primarily used as a high strength low cost core material in Air Transportable Shelters. Not to be confused with commercial grade paper honeycomb, AHK is coated with phenolic resin after expanding and then heat cured imparting superior strength and water resistance to the material. The material exhibits high strength characteristics and is water resistant. It also provides good thermal insulation. It is available in two cell sizes and five densities to suit most purposes. Typical applications include light weight wall panels for shelters, shelving, and non-structural facia panels for high rise construction.
PRODUCT DESIGNATION
A variety of cell sizes, paper weights, and resin coatings weights are available. Minimum strength characteristics are illustrated later in this document. The products are designated as follows:
| AHK | Advanced Honeycomb Kraft |
| 3/8 | Cell Size in inches |
| 2500 | 2.5 lb. density in pounds per cubic foot |
SPECIFICATIONS
AHK Kraft honeycomb conforms to MIL-H-21040 C and ASTM E 1091. AHK Kraft paper honeycomb has been found to be very effective withstanding hot/wet environments. Mechanical properties are found later in this document.
AVAILABILITY
AHK is supplied in standard sheet sizes of 48″ L by 96″ W. The sheet thickness can be custom cut from .250 inches to 18 inches thick depending on the material cell size and density.
Special sheet sizes, both larger and smaller are available on a special order basis. Because of the special size, a minimum order may be required.
SHEET SIZE TOLERANCES
| Length (W) & Width (L): | = -0 +4 inches |
| Thickness (T): | = +/- .010 up to 4.00 inches |
| = .060 above 4.00 inches | |
|
Closer tolerances are possible and may carry a premium price.
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MECHANICAL PROPERTIES OF AHK KRAFT PAPER HONEYCOMB
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Product Designation Cell-Density
|
Compressive Strength Minimum |
Shear Strength Minimum
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Plate
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Short Beam
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|||||
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L Direction
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W Direction
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L Direction
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W Direction
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Hexagonal Cell
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Note 1
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Note 2
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Note 1
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Note 2
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Note 1
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Note 2
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AHK 2400-3/8-2.5
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150
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N/A
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106
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50
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N/A
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N/A
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|
AHK 3000-3/8-3.0
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210
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198
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140
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75
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85
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57
|
|
AHK 3800-3/8-3.8
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319
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N/A
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200
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125
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N/A
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N/A
|
|
AHK 4000-3/8-4.0
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340
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404
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225
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130
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180
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113
|
|
AHK 6800-1/4-6.8
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N/A
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N/A
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N/A
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N/A
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N/A
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N/A
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| Note 1: Tested per MIL–H–21040C and MIL–STD–401B | ||||||
| Note 2: Tested per ASTM E 1091 | ||||||
| Actual values obtained are normally significantly higher than values shown. | ||||||
FOR INDUSTRIAL USE ONLY
The above is made in lieu of all warranties, expressed, or implied: Seller’s only obligation shall be to replace such quantity of this product which has proven to not substantially comply with the data presented in this bulletin. In the event of discovery of a non-conforming product, Seller shall not be liable for any commercial loss or damage, direct or consequential, arising out of the use of the inability to use the product. Before using, Buyer shall determine the suitability of the product for their intended purpose, and Buyer assumes all risk and liability whatsoever in connection therein. Statements relating to possible use of our product are not guarantees that such use is free of patent infringement or that they are approved for such use by any agency. The foregoing may not be changed except by an agreement signed by an officer of Seller.
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CMC prepregs are used for parts requiring thermal performance up to 2200°F
Specially formulated resin systems include epoxy, phenolic, polyester, cyanate ester, vinyl ester and polyimide.
