← Back to Bead BoardAluminum plate weight calculator
Aluminum plate at 0.0975 lb/in³ for 6061-T6, 0.0968 for 5052. A 4×8 sheet of 1/4 inch 6061 weighs 112 lb. That is about a third of the same sheet in mild steel. Pick your thickness, get the weight, quote the job.
Weights are calculated from published densities and standard section geometry. Real plate and bar stock runs ±2–3% from spec.
Common aluminum plate weights (6061-T6)
Formula: length × width × thickness × 0.0975 lb/in³. 5052 is 0.8% lighter than 6061. Not enough to matter for quoting, but exact on the calculator.
Questions welders ask about this one
What is the density of 6061 aluminum in lb/in³?
0.0975 lb/in³ (2.70 g/cm³) for 6061-T6. This is the same as all the 6000-series heat-treatable aluminum alloys. The T6 temper does not change the density, just the mechanical properties.
How much lighter is aluminum than steel?
About 34% of the weight. A piece of mild steel at 0.2836 lb/in³ and 6061 aluminum at 0.0975 lb/in³ means aluminum is 34.4% of the weight of the same-size steel part. That 4×8 sheet of 1/4" mild steel at 327 lb is only 112 lb in 6061.
Is 6061 the same weight as 5052?
Almost. 6061-T6 is 0.0975 lb/in³ and 5052 is 0.0968 lb/in³, a 0.7% difference. For any practical quoting math, treat them as identical. The real difference is formability (5052 bends better) and corrosion resistance (5052 wins in marine applications).
Other metal weight calculators
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Hollow structural section weight and wall thickness.
Stainless Plate Weight
304 and 316 stainless plate, lb or kg.