Foam Aluminum for Maritime and Naval Applications

Aluminum foam combines lightweight structure, energy absorption, acoustic performance, and electromagnetic shielding for a range of marine aluminum applications, including vessel compartments, decks, engine rooms, and protective structures.

Performance of foam aluminum

Property	Value / Range
Density	0.5 ~ 0.8 g/cm³
EMI Shielding	60 ~ 100 dB
Compressive Strength	15 ~ 35 MPa
Energy Absorption	10 ~ 30 MJ/m³
Stiffness	Elastic Modulus: 0.7 ~ 1.4 GPa
Thermal Expansion	(14 ~ 20) × 10⁻⁶ /°C
Thermal Conductivity	0.2 ~ 0.8 W/(m·K)
Heat Resistance	No deformation at 780°C; heat resistant up to 1000°C
Sound Absorption	Noise Reduction Coefficient (NRC): 0.4 ~ 0.8
Sound Insulation	20 ~ 40 dB

For broader material forms and specifications, see our porous aluminum foam sheet and plate range.

Naval compartment walls

Foam aluminum composite panels are used in ship compartments for multi-functional protection. They offer sound insulation, shock absorption, flame retardancy, bullet resistance, and explosion-proof capabilities, supporting military protection applications in vessel interiors.

Ship deck panels

A composite structure of armor plate + foam aluminum + steel is used on ship decks.

This increases the deck's strength by over 2x and significantly enhances its anti-explosion and ballistic resistance, providing better protection for critical areas.

Engine room noise reduction (surface vessels)

In destroyers and similar vessels, foam aluminum acoustic panels are applied in engine rooms and partition walls to reduce vibration and noise.

These panels integrate acoustic dampening, fire safety, and structural reinforcement into a lightweight solution.

Electromagnetic catapult systems (aircraft carriers)

Foam aluminum can shield high-power electromagnetic radiation in carrier-based EM catapults.

It performs well in pulse fields >2 Tesla, providing effective EMI shielding with low heat generation, which is crucial for high-frequency equipment stability.