Hexcel® HexWeb® HRH-78 - 3/16 - 6.0 Commercial Grade Nomex Honeycomb/Phenolic Resin

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Hexcel® HexWeb® HRH-78 - 3/16 - 6.0 Commercial Grade Nomex Honeycomb/Phenolic Resin (discontinued **)
Categories:	Polymer; Thermoset; Phenolic
Material Notes:	Designation: Material-Cell Size (inches)-Density HexWeb® HRH-78 is manufactured from commercial grade aramid paper sheets. A thermosetting adhesive is used to bond these sheets at the nodes, and after expanding, the block is dipped in a phenolic resin. After curing the resin, slices are cut to the desired thickness. Using this process, a wide range of cell sizes, paper thicknesses, and densities can be produced. An OX-Core® configuration featuring enhanced formability is available upon request. Features: High strength at low densities; Small cell sizes at low densities; Damage resistant under normal shop use; Formable; Flame resistant; Good bonding surfaces; Good thermal and electrical insulator. Applications: HexWeb® HRH-78 was developed by Hexcel to offer most of the characteristics of HexWeb® HRH-10 for exclusive use in non-aerospace applications, such as pleasure boats, skis, surfboards, ground antennas, and navy joiner panels.
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Physical Properties	Original Value	Comments

Density	6.00 lb/ft³

Mechanical Properties	Original Value	Comments
Compressive Yield Strength	1.025 ksi	Bare
	1.10 ksi	Stabilized
Shear Modulus	5.50 ksi	Plate Shear, W Direction, preliminary value obtained from limited testing
	13.0 ksi	Plate Shear, L Direction, preliminary value obtained from limited testing
Shear Strength	0.235 ksi	Plate Shear, W Direction
	0.450 ksi	Plate Shear, L Direction

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PHEXC370 / 98841

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