5xxx · Al-Mg · EN 573-3 / ASTM B928
5083-H116 Aluminum
Premier marine alloy. Density ~2.66 g/cm³ means a 2.70 assumption overestimates weight by ~1.5%. Excellent weldability.
Density
2.66 g/cm³
2660 kg/m³
Yield (Rp0.2)
215 MPa
typical
Tensile (Rm)
290 MPa
typical
Elongation
16%
A
Modulus E
71 GPa
elastic
Hardness
75 HB
H116
α thermal
23.4×10⁻⁶/K
expansion
k thermal
117 W/m·K
conductivity
Density vs the 2.70 myth
True density for 5083-H116 Aluminum is 2.66 g/cm³. Using 2.70 introduces a -1.48% mass error.
1 m² × 10 mm plate (correct ρ)
26.60 kg
Same plate if ρ = 2.70
27.00 kg
Weldability
Excellent
Machinability
Fair
Corrosion resistance
Excellent
Typical applications
- • Marine plate
- • Shipbuilding
- • Cryogenic tanks
Engineering pitfalls
- • Sensitization risk in some tempers if improperly heat-treated
- • Not as strong as 7075 for aerospace fittings
Compare & related
Values are typical handbook figures for the stated temper (H116) and are intended for preliminary engineering. Production design must use certified material data and applicable design codes. Standard reference: EN 573-3 / ASTM B928.