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Aluminum ZL116 vs ZL301

Aluminum · grade comparison

Aluminum ZL116 and ZL301 are both aluminum grades. ZL116 is the stronger of the two: yield strength 255 MPa (37 ksi) against 110 MPa (16 ksi) for ZL301, about 132% more; tensile strength follows at 335 MPa (48.6 ksi) vs 160 MPa (23.2 ksi). ZL116 is the more ductile: elongation 4% versus 3% for ZL301, and ZL116 is harder (90 HB vs 55 HB). ZL301 is lighter (2.57 g/cm³ vs 2.65 g/cm³ for ZL116) and ZL116 runs hotter in service (150°C vs 100°C continuous). On the shop floor, ZL301 machines more easily (very good vs good) and ZL116 welds better (very good vs fair).

ZL116Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

ZL301Choose it when weight is the constraint, or when the part is machined in volume.

ZL116 vs ZL301: properties

ZL116ZL301

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

71 GPa10.3 Msi
68 GPa9.9 Msi

Shear Modulus

26.5 GPa3.8 Msi
25.5 GPa3.7 Msi

Bulk Modulus

71 GPa10.3 Msi
66 GPa9.6 Msi

Tensile Strength (Ultimate)

335 MPa48.6 ksi
160 MPa23.2 ksi

Yield Strength (0.2% offset)

255 MPa37 ksi
110 MPa16 ksi

Elongation at Break

4%
3%

Compressive Strength

270 MPa39.2 ksi
165 MPa23.9 ksi

Shear Strength

215 MPa31.2 ksi
110 MPa16 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
45 MPa6.5 ksi

Fracture Toughness (K_IC)

20 MPa·√m18.2 ksi·√in
—

Charpy V-Notch Impact (RT)

8 J5.9 ft·lbf
4 J3 ft·lbf

Hardness, Brinell

90 HB
55 HB

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.65 g/cm³0.1 lb/in³
2.57 g/cm³0.09 lb/in³

Melting Point (Solidus)

555°C1,031 °F
450°C842 °F

Liquidus Temperature

610°C1,130 °F
600°C1,112 °F

Thermal

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

Thermal Conductivity

150 W/m·K86.7 BTU/hr·ft·°F
100 W/m·K57.8 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

21.5 µm/m·K11.9 µin/in·°F
25.2 µm/m·K14 µin/in·°F

Latent Heat of Fusion

425 J/g183 BTU/lb
380 J/g163 BTU/lb

Max Service Temperature (continuous)

150°C302 °F
100°C212 °F

Same in both: Specific Heat Capacity 963 J/kg·K0.23 BTU/lb·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

38 % IACS
24 % IACS

Electrical Resistivity

4.5×10⁻⁸ Ω·m1.77 µΩ·in
8.2×10⁻⁸ Ω·m3.23 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.83 V
-0.87 V

Same in both: Corrosion Resistance 62 / 100

Manufacturability

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

Machinability

55 / 100
78 / 100

Machinability Rating (AISI 1212 = 100 %)

120%
300%

Weldability

70 / 100
45 / 100

Castability

88 / 100
30 / 100

Brazeability / Solderability

35 / 100
10 / 100

Polishability

45 / 100
75 / 100

Same in both: Formability (cold) 10 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12.5 kg CO₂/kg
13.5 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
1,150 L/kg138 gal/lb

Typical Recycled Content

30%
15%

Same in both: Embodied Energy (primary production) 195 MJ/kg83,835 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

126 kN·m/kg
62 kN·m/kg

Specific Stiffness (E / density)

26.8 MN·m/kg
26.5 MN·m/kg

Modulus of Resilience

458 kJ/m³
89 kJ/m³

Thermal Diffusivity

58.8 mm²/s
40.4 mm²/s

Thermal Shock Resistance Index

33
9

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 scaleZL301ZL116

Manufacturing and finishing

CapabilityZL116ZL301
CNC machining—Yes
Default condition—F
Relative cost$$ Standard$$ Standard
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.

ZL116 vs ZL301 — frequently asked

Is ZL116 stronger than ZL301?

Yes. ZL116 has a typical yield strength of 255 MPa (37 ksi) against 110 MPa (16 ksi) for ZL301 — about 132% more. Tensile strength is 335 MPa (48.6 ksi) vs 160 MPa (23.2 ksi).

Which is cheaper, ZL116 or ZL301?

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

Which is easier to machine, ZL116 or ZL301?

ZL301. Its machinability rates very good (78/100) against good (55/100) for ZL116; for welding the order is ZL116 first (very good, 70/100) then ZL301 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in ZL116 and ZL301 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.