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Aluminum ZL114A vs ZL205A

Aluminum · grade comparison

Aluminum ZL114A and ZL205A are both aluminum grades. ZL205A is the stronger of the two: yield strength 320 MPa (46.4 ksi) against 275 MPa (39.9 ksi) for ZL114A, about 16% more; tensile strength follows at 460 MPa (66.7 ksi) vs 340 MPa (49.3 ksi). ZL205A is the more ductile: elongation 9% versus 5% for ZL114A. ZL114A is lighter (2.67 g/cm³ vs 2.82 g/cm³ for ZL205A) and ZL205A runs hotter in service (175°C vs 150°C continuous). On the shop floor, ZL205A machines more easily (very good vs good), ZL114A welds better (very good vs fair), and ZL114A sits in a lower cost tier (standard, $$) than ZL205A (high, $$$$).

ZL114AChoose it when weight is the constraint, or when it will be welded.

ZL205AChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

ZL114A vs ZL205A: properties

ZL114AZL205A

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72 GPa10.4 Msi
70 GPa10.2 Msi

Shear Modulus

27 GPa3.9 Msi
26.5 GPa3.8 Msi

Bulk Modulus

71 GPa10.3 Msi
70 GPa10.2 Msi

Tensile Strength (Ultimate)

340 MPa49.3 ksi
460 MPa66.7 ksi

Yield Strength (0.2% offset)

275 MPa39.9 ksi
320 MPa46.4 ksi

Elongation at Break

5%
9%

Compressive Strength

285 MPa41.3 ksi
330 MPa47.9 ksi

Shear Strength

230 MPa33.4 ksi
275 MPa39.9 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
105 MPa15.2 ksi

Fracture Toughness (K_IC)

25 MPa·√m22.8 ksi·√in
27 MPa·√m24.6 ksi·√in

Hardness, Brinell

100 HB
105 HB

Charpy V-Notch Impact (RT)

—
12 J8.9 ft·lbf

Hardness, Vickers

—
112 HV

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.67 g/cm³0.1 lb/in³
2.82 g/cm³0.1 lb/in³

Melting Point (Solidus)

555°C1,031 °F
545°C1,013 °F

Liquidus Temperature

613°C1,135 °F
650°C1,202 °F

Thermal

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

Thermal Conductivity

152 W/m·K87.8 BTU/hr·ft·°F
150 W/m·K86.7 BTU/hr·ft·°F

Specific Heat Capacity

963 J/kg·K0.23 BTU/lb·°F
880 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

21.5 µm/m·K11.9 µin/in·°F
22.5 µm/m·K12.5 µin/in·°F

Latent Heat of Fusion

389 J/g167 BTU/lb
390 J/g168 BTU/lb

Max Service Temperature (continuous)

150°C302 °F
175°C347 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

39 % IACS
33 % IACS

Electrical Resistivity

4.4×10⁻⁸ Ω·m1.73 µΩ·in
5.2×10⁻⁸ Ω·m2.05 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.83 V
-0.73 V

Corrosion Resistance

60 / 100
30 / 100

Manufacturability

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

Machinability

55 / 100
75 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
150%

Weldability

75 / 100
45 / 100

Formability (cold)

15 / 100
10 / 100

Castability

92 / 100
40 / 100

Brazeability / Solderability

35 / 100
25 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

195 MJ/kg83,835 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
12.5 kg CO₂/kg

Typical Recycled Content

15%
10%

Same in both: Embodied Water 1,150 L/kg138 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

127 kN·m/kg
163 kN·m/kg

Specific Stiffness (E / density)

27 MN·m/kg
24.8 MN·m/kg

Modulus of Resilience

525 kJ/m³
731 kJ/m³

Thermal Diffusivity

59.1 mm²/s
60.4 mm²/s

Thermal Shock Resistance Index

33
44

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 scaleZL205AZL114A

Manufacturing and finishing

CapabilityZL114AZL205A
CNC machining—Yes
Default condition—T5
Relative cost$$ Standard$$$$ High
Min. machined wall—0.5 mm
Best machined surface—Ra 0.8 µm
Anodizing Type II—Yes
Cerakote—Yes
Chem Film (Alodine)—Yes
DLC—Yes
E-Coating—Yes
Electropolishing—Yes
Hard Anodize Type III w/ PTFE—Yes
Hard Anodizing Type III—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes
Powder Coating—Yes

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

ZL114A vs ZL205A — frequently asked

Is ZL205A stronger than ZL114A?

Yes. ZL205A has a typical yield strength of 320 MPa (46.4 ksi) against 275 MPa (39.9 ksi) for ZL114A — about 16% more. Tensile strength is 460 MPa (66.7 ksi) vs 340 MPa (49.3 ksi).

Which is cheaper, ZL114A or ZL205A?

ZL114A is the lower-cost material: it sits in the standard tier ($$) while ZL205A is high ($$$$). 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, ZL114A or ZL205A?

ZL205A. Its machinability rates very good (75/100) against good (55/100) for ZL114A; for welding the order is ZL114A first (very good, 75/100) then ZL205A (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in ZL114A and ZL205A 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.