5083 Aluminum H321 is a non-heat-treatable aluminum-magnesium alloy (nominally 4.4% Mg) in a strain-hardened and stress-relieved condition, offering excellent seawater corrosion resistance and weldability with moderate strength suitable for marine structures, pressure vessels, and welded aerospace applications. The H321 temper provides controlled mechanical properties and dimensional stability through controlled work-hardening followed by thermal stress relief, maintaining corrosion resistance while reducing residual stresses from fabrication.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Modulus(Ec) | 71.71 | GPa | 22°C · Sheet/Plate | ||
Elongation at Break(εf)3 entries | 12.00 | - | 22°C · Sheet/Plate · H321 · AMS-QQ-A-250/6 · L · t=0.188-1.500 in | ||
| ↳ | 12.00 | - | 22°C · Sheet/Plate · H321 · AMS-QQ-A-250/6 · L · t=0.188-1.500 in | ||
| ↳ | 12.00 | - | 22°C · Sheet/Plate · H321 · AMS-QQ-A-250/6 · L · t=1.501-3.000 in | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 23.10 | GPa | 22°C · Extrusion | ||
Ultimate Tensile Strength(σUTS) | 282.7 – 317.2 | MPa | 5 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 193.1 – 220.6 | MPa | 5 entriesClick to expand | ||
Young's Modulus(E) | 70.33 | GPa | 22°C · Sheet/Plate | ||
2 interactive curves for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
CTE vs Temperature(α(T)) | Curve (17 pts) | 1/K | — | ||
Thermal Conductivity vs Temperature(k(T)) | Curve (20 pts) | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.657 | kg/m³ | 22°C |