Logo Advanced Honeycomb Technologies, Inc.

AHN4120 ARAMID FIBER/PHENOLIC COATED HONEYCOMB revised 5/28/92
AHN 4120 is an Aerospace Grade Nomex Honeycomb which exhibits high strength and toughness in a small cell, low density, non-metallic honeycomb.

It is particularly noted for its corrosion resistance. This material is fire resistant and is typically used in transport aircraft construction where low O.S.U., smoke, and toxicity characteristics are a necessity.

This material also exhibits good thermal insulation properties and also has good dielectic properties. This honeycomb is easily machined, formed, and shaped and well suited to adhesive bonding.

PRODUCT DESIGNATION
A wide variety of cell sizes, web gauges, resin coating weights, and cell shapes are available. Strength characteristics are illustrated below. The products are designated as follows:

AHN Advanced Honeycomb Nomex
4120 Aerospace Grade
1/8 Cell size in inches
3.0 Density in pounds per cubic foot
(2.0) Thickness of Aramid (in mils)
(for curved surfaces, if omitted the cell shape is hexagonal)
O.X. Indicates Over-Expanded Cell shape
(for curved surfaces, if omitted the cell shape is hexagonal)

SPECIFICATIONS
AHN 4120 honeycomb meets most commercial and military specifications. These include the strength requirements of BMS 8-124, DMS 1974, AMS 3711, and MIL-C-81986. Most of the specifications have similar requirements. Because of the large number of specifications and frequent revisions, we must be advised as to your requirements when we quote. If no specification is stated, we will certify to our Product Data sheet.


AVAILABILITY
AHN 4120 is supplied in standard sheet sizes of 48”L by 96”W for hexagonal shaped cells and 38”L by 96”W for over-expanded shaped cells. The sheet thicknesses can be custom cut from .060 inches to 23 ½ 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) = +/- .006 up to 2.00 inches
= .010 to 4.00 inches
= .060 above 4.00 inches
Closer tolerances are possible and may carry a premium price.

 

PRODUCT
Compressive Strength
Plate Shear
DESIGNATION
Bare
Stabilized
L Direction
W Direction
Cell Density
Strength PSI
Strength PSI
Strength PSI
Modulus ksi
Strength PSI
Modulus ksi
Hexagonal Cell
typ
min
typ
min
typ
min
typ
typ
min
typ
AHN-4120-1/8-1.8 105 70 115 80 90 66 3.8 50 36 1.8
AHN-4120-1/8-3.0 300 180 325 270 175 162 5.2 100 85 2.5
AHN-4120-1/8-4.0 520 330 575 470 255 225 7.0 140 112 3.6
AHN-4120-1/8-5.0 700 600 770 660 325 250 8.5 175 140 4.6
AHN-4120-1/8-6.0 1050 800 1125 825 385 260 10.0 200 135 4.7
AHN-4120-1/8-8.0 1675 1100 1830 1250 460 400 13.0 260 200 6.5
AHN-4120-1/8-9.0 2000 1400 2100 1600 515 425 15.0 300 240 8.0
AHN-4120-3/16-1.5 90 75 100 85 75 60 3.0 40 32 1.6
AHN-4120-3/16-2.0 145 90 160 105 110 72 4.3 60 40 2.0
AHN-4120-3/16-3.0 300 180 325 270 175 140 4.5 100 67 2.5
AHN-4120-3/16-4.0 400 320 540 470 245 225 7.0 140 112 3.8
AHN-4120-3/16-6.0 700 580 1020 650 420 360 13.0 225 200 4.5
AHN-4120-1/4-1.5 80 45 90 54 70 45 1.8 35 23 1.3
AHN-4120-1/4-2.0 140 80 155 105 105 72 2.2 50 38 1.8
AHN-4120-1/4-3.0 200 160 250 225 170 127 4.5 80 64 2.5
AHN-4120-1/4-3.1 285 180 310 240 185 135 5.6 90 75 3.0
AHN-4120-1/4-4.0 440 310 480 360 250 200 6.5 125 95 3.5
AHN-4120-1/4-4.8 n/a 320 n/a 450 n/a 225 7.3 n/a 140 4.0
AHN-4120-3/8-1.5 85 45 105 55 70 45 1.8 35 23 1.0
AHN-4120-3/8-2.0 140 80 155 105 90 72 2.2 55 36 1.3
AHN-4120-3/8-3.0 290 175 320 210 185 110 3.9 95 55 2.5
Over-Expanded Cell
AHN-4120-3/16-1.8 OX 110 70 120 75 65 45 1.5 60 42 2.2
AHN-4120-3/16-3.0 OX 320 230 350 280 115 90 2.2 135 90 4.5
AHN-4120-3/16-4.0 OX 600 500 650 550 130 115 4.3 150 130 8.0
Aircraft Flooring Core
AHN-4120-AFC-5.0 700 550 745 600 355 275 8.5 205 150 4.5
AHN-4120-AFC-9.0 1800 1400 2050 1600 480 425 15.0 320 275 8.0

All tests are per MIL--STD--401B, core thickness of .500" (for core (T) of .270 increase shear strengths by 14%). Min indicates a specification minimum value. Typ indicates averages of typical production test results, actual results may be lower.

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 infringment 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.

Back