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Aluminum 1100 vs 5025

Aluminum · grade comparison

Aluminum 1100 and 5025 are both aluminum grades, both corrosion resistant al. 5025 is the stronger of the two: yield strength 155 MPa (22.5 ksi) against 115 MPa (16.7 ksi) for 1100, about 35% more; tensile strength follows at 195 MPa (28.3 ksi) vs 125 MPa (18.1 ksi). In exchange, 1100 is the more ductile: elongation 12% versus 10% for 5025, and 5025 is harder (55 HB vs 32 HB). 1100 conducts heat better (222 W/m·K vs 185 W/m·K).

1100Choose it when the part is bent, formed or impact-loaded.

5025Choose it when strength drives the design.

1100 vs 5025: properties

11005025

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

69 GPa10 Msi
69.5 GPa10.1 Msi

Bulk Modulus

76 GPa11 Msi
69 GPa10 Msi

Tensile Strength (Ultimate)

125 MPa18.1 ksi
195 MPa28.3 ksi

Yield Strength (0.2% offset)

115 MPa16.7 ksi
155 MPa22.5 ksi

Elongation at Break

12%
10%

Shear Strength

75 MPa10.9 ksi
125 MPa18.1 ksi

Fatigue Strength (Endurance Limit)

48 MPa7 ksi
105 MPa15.2 ksi

Hardness, Brinell

32 HB
55 HB

Hardness, Vickers

35 HV
—

Same in both: Shear Modulus 26 GPa3.8 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.71 g/cm³0.1 lb/in³
2.69 g/cm³0.1 lb/in³

Melting Point (Solidus)

643°C1,189 °F
620°C1,148 °F

Liquidus Temperature

657°C1,215 °F
652°C1,206 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

222 W/m·K128 BTU/hr·ft·°F
185 W/m·K107 BTU/hr·ft·°F

Specific Heat Capacity

904 J/kg·K0.22 BTU/lb·°F
900 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

23.6 µm/m·K13.1 µin/in·°F
23.8 µm/m·K13.2 µin/in·°F

Latent Heat of Fusion

397 J/g171 BTU/lb
395 J/g170 BTU/lb

Min Service Temperature

-273°C-459 °F
-196°C-321 °F

Same in both: Max Service Temperature (continuous) 120°C248 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

57 % IACS
49 % IACS

Electrical Resistivity

3.02×10⁻⁸ Ω·m1.19 µΩ·in
3.5×10⁻⁸ Ω·m1.38 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.83 V
-0.85 V

Corrosion Resistance

78 / 100
72 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Weldability

95 / 100
88 / 100

Formability (cold)

85 / 100
72 / 100

Castability

30 / 100
—

Brazeability / Solderability

92 / 100
30 / 100

Polishability

80 / 100
70 / 100

Same in both: Machinability 38 / 100 · Machinability Rating (AISI 1212 = 100 %) 30%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

210 MJ/kg90,284 BTU/lb
200 MJ/kg85,985 BTU/lb

Typical Recycled Content

25%
35%

Same in both: Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

46 kN·m/kg
72 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

96 kJ/m³
173 kJ/m³

Thermal Diffusivity

90.6 mm²/s
76.4 mm²/s

Thermal Shock Resistance Index

17
22

Strength versus weight

Yield strength against density for every aluminum grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

20501002005002.22.42.62.83Density (g/cm³)Yield strength (MPa) — log scale11005025

Manufacturing and finishing

Capability11005025
Default condition——
Relative cost$ Budget$ Budget
Min. machined wall0.5 mm0.5 mm
Best machined surfaceRa 0.8 µmRa 0.8 µm

Both are offered for CNC machining and Sheet metal. Both take the same 16 finishes: Anodizing Type II, Cerakote, Chem Film (Alodine), DLC, E-Coating, Electroless Nickel (EN), Electropolishing, Epoxy Coating, Gold Plating, Hard Anodize Type III w/ PTFE, Hard Anodizing Type III, Nickel Plating and 4 more.

1100 vs 5025 — frequently asked

Is 5025 stronger than 1100?

Yes. 5025 has a typical yield strength of 155 MPa (22.5 ksi) against 115 MPa (16.7 ksi) for 1100 — about 35% more. Tensile strength is 195 MPa (28.3 ksi) vs 125 MPa (18.1 ksi).

Which is cheaper, 1100 or 5025?

Both sit in the same relative cost tier ($, budget); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, 1100 or 5025?

1100. Its weldability rates excellent (95/100) against excellent (88/100) for 5025.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1100 and 5025 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.