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Aluminum 1050 vs 1100A

Aluminum · grade comparison

Aluminum 1050 and 1100A are both aluminum grades. 1100A is the stronger of the two: yield strength 115 MPa (16.7 ksi) against 90 MPa (13.1 ksi) for 1050, about 28% more; tensile strength follows at 125 MPa (18.1 ksi) vs 110 MPa (16 ksi). 1100A is the more ductile: elongation 9% versus 5% for 1050, and 1100A is harder (32 HB vs 30 HB). On the shop floor, 1050 sits in a lower cost tier (budget, $) than 1100A (standard, $$).

1050Choose it when cost is the deciding factor.

1100AChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

1050 vs 1100A: properties

10501100A

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

75 GPa10.9 Msi
68 GPa9.9 Msi

Tensile Strength (Ultimate)

110 MPa16 ksi
125 MPa18.1 ksi

Yield Strength (0.2% offset)

90 MPa13.1 ksi
115 MPa16.7 ksi

Elongation at Break

5%
9%

Fatigue Strength (Endurance Limit)

42 MPa6.1 ksi
48 MPa7 ksi

Hardness, Brinell

30 HB
32 HB

Hardness, Vickers

33 HV
35 HV

Same in both: Elastic (Young's) Modulus 69 GPa10 Msi · Shear Modulus 26 GPa3.8 Msi · Poisson's Ratio 0.33 · Shear Strength 70 MPa10.2 ksi

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

646°C1,195 °F
643°C1,189 °F

Same in both: Liquidus Temperature 657°C1,215 °F

Thermal

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

Thermal Conductivity

229 W/m·K132 BTU/hr·ft·°F
222 W/m·K128 BTU/hr·ft·°F

Specific Heat Capacity

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

Min Service Temperature

-270°C-454 °F
-250°C-418 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 23.6 µm/m·K13.1 µin/in·°F · Latent Heat of Fusion 397 J/g171 BTU/lb · Max Service Temperature (continuous) 150°C302 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

61 % IACS
57 % IACS

Electrical Resistivity

2.83×10⁻⁸ Ω·m1.11 µΩ·in
3.02×10⁻⁸ Ω·m1.19 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.84 V
-0.83 V

Same in both: Corrosion Resistance 78 / 100

Manufacturability

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

Machinability

30 / 100
35 / 100

Weldability

92 / 100
95 / 100

Formability (cold)

85 / 100
80 / 100

Polishability

78 / 100
75 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 30% · Brazeability / Solderability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

205 MJ/kg88,134 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Carbon (primary production)

12.5 kg CO₂/kg
11.5 kg CO₂/kg

Embodied Water

1,100 L/kg132 gal/lb
1,150 L/kg138 gal/lb

Typical Recycled Content

20%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

41 kN·m/kg
46 kN·m/kg

Modulus of Resilience

59 kJ/m³
96 kJ/m³

Thermal Diffusivity

94.1 mm²/s
90.6 mm²/s

Thermal Shock Resistance Index

15
17

Same in both: Specific Stiffness (E / density) 25.5 MN·m/kg

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 scale10501100A

Manufacturing and finishing

Capability10501100A
CNC machiningYes—
Sheet metalYes—
Default condition——
Relative cost$ Budget$$ Standard
Min. machined wall0.5 mm—
Best machined surfaceRa 0.8 µm—
Anodizing Type IIYes—
CerakoteYes—
Chem Film (Alodine)Yes—
DLCYes—
E-CoatingYes—
ElectropolishingYes—
Hard Anodize Type III w/ PTFEYes—
Hard Anodizing Type IIIYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Powder CoatingYes—

They share 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.

1050 vs 1100A — frequently asked

Is 1100A stronger than 1050?

Yes. 1100A has a typical yield strength of 115 MPa (16.7 ksi) against 90 MPa (13.1 ksi) for 1050 — about 28% more. Tensile strength is 125 MPa (18.1 ksi) vs 110 MPa (16 ksi).

Which is cheaper, 1050 or 1100A?

1050 is the lower-cost material: it sits in the budget tier ($) while 1100A is standard ($$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 1050 or 1100A?

1100A. Its machinability rates fair (35/100) against poor (30/100) for 1050.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1050 and 1100A 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.