Standard Product Offering
Blocks | Slices | Sheets
RelCore aluminum honeycomb offers tremendous weight savings while providing outstanding structural properties.

Aluminum honeycomb is highly desired for lightweight applications that require flexural strength, structural backup, and impact resistance. It is available in a wide range of configurations, which provide versatility for your specific needs.

Our core material is available in 3003 and 5052 aluminum alloy and typically in gauge thickness of 1 to 3 mil. Your product can be specified as either perforated or nonperforated. We offer four forms of aluminum honeycomb products; unexpanded blocks, unexpanded slices, untrimmed expanded sheets and cut-to-size expanded sheets.
Quality Testing
RelCore aluminum core is tested per ASTM standards. Our quality systems require lot controls, which are maintained for all components and processes used to build your product.
Corrosion Protection
RelCore offers a corrosion-resistant barrier for standard corrosion protection. For cores exposed to extreme environments, our corrosion-inhibitor coating provides superior protection and is certified to AMS-7438 requirements.

Cell Sizes
Sheet Ribbon [L]
Sheet Transverse [W]
Sheet Thickness [T]
1/4” to 1”

1/8” to 3/8”
3003 alloy is
5.2 pcf to 1.4 pcf

5052 alloy is
8.1 pcf to 2.1 pcf
48” standard size
to 66” max.
96” standard size
to 300” max.
1/8” to 6” max
Length [+2” -0”]
Width [+4” -0”]
Thickness [± 0.008”]
Density [±15%]
Cell size [±15%]
For PDF versions of our data sheets, click below.