Hexcel® HexWeb® HRH-327 - 3/8 - 5.5 Fiberglass Reinforced Polyimide Honeycomb

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Hexcel® HexWeb® HRH-327 - 3/8 - 5.5 Fiberglass Reinforced Polyimide Honeycomb (discontinued **)
Categories:	Other Engineering Material; Composite Fibers; Polymer; Thermoset; Polyimide, TS
Material Notes:	Designation: Material-Cell Size (inches)-Density HexWeb® HRH-327 is a glass-fabric, bias weave reinforced plastic honeycomb that incorporates a polyimide resin system for the node adhesive as well as both the initial and final web impregnations. This material has been developed for extended service temperatures up to 500°F with short-term capabilities up to 700°F. Unless other specified, material will have standard postcure. Features: High-strength retention up to 500°F continuous service; 700°F short and intermittent term exposures; All polyimide resin and adhesive system; Good dielectric properties; Good insulative properties; Compatible with Hexcel polyimide adhesive, foam, and prepreg. Applications: A high-temperature nonmetallic honeycomb for use in sandwich structures that require good electrical properties or that see service temperatures in the range of 350°F-500°F. Applications include sandwich structures for Mach 2 and Mach 3 aircraft, high-energy radomes, structural and acoustical engine inlets and liners.
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Physical Properties	Original Value	Comments

Density	5.50 lb/ft³

Mechanical Properties	Original Value	Comments
Compressive Yield Strength	>= 0.540 ksi	Stabilized, min
	0.680 ksi	Stabilized, typical
Compressive Modulus	78.0 ksi	Stabilized, typical
Shear Modulus	13.0 ksi	Plate Shear, W Direction, typical
	41.0 ksi	Plate Shear, L Direction, typical
Shear Strength	>= 0.160 ksi	Plate Shear, W Direction, min
	0.210 ksi	Plate Shear, W Direction, typical
	>= 0.300 ksi	Plate Shear, L Direction, min
	0.420 ksi	Plate Shear, L Direction, typical

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	500 °F	Extended
	700 °F	Short Term

**
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PHEXC397 / 98868

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