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Aluminum 356 vs 364.0

Aluminum · grade comparison

Aluminum 356 and 364.0 are both aluminum grades. 356 is the stronger of the two: yield strength 186 MPa (27 ksi) against 159 MPa (23.1 ksi) for 364.0, about 17% more. In exchange, 364.0 is the more ductile: elongation 7.5% versus 5% for 356, and 356 is harder (80 HB vs 75 HB). 356 conducts heat better (151 W/m·K vs 105 W/m·K). On the shop floor, 356 machines more easily (very good vs good), 356 welds better (very good vs poor), and 356 sits in a lower cost tier (budget, $) than 364.0 (standard, $$).

356Choose it when strength drives the design, or when the part is machined in volume.

364.0Choose it when the part is bent, formed or impact-loaded.

356 vs 364.0: properties

356364.0

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72.4 GPa10.5 Msi
71 GPa10.3 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)

262 MPa38 ksi
296 MPa42.9 ksi

Yield Strength (0.2% offset)

186 MPa27 ksi
159 MPa23.1 ksi

Elongation at Break

5%
7.5%

Compressive Strength

190 MPa27.6 ksi
165 MPa23.9 ksi

Shear Strength

179 MPa26 ksi
185 MPa26.8 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
145 MPa21 ksi

Fracture Toughness (K_IC)

20 MPa·√m18.2 ksi·√in
17 MPa·√m15.5 ksi·√in

Charpy V-Notch Impact (RT)

5 J3.7 ft·lbf
4 J3 ft·lbf

Hardness, Brinell

80 HB
75 HB

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

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

Liquidus Temperature

613°C1,135 °F
596°C1,105 °F

Same in both: Melting Point (Solidus) 557°C1,035 °F

Thermal

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

Thermal Conductivity

151 W/m·K87.2 BTU/hr·ft·°F
105 W/m·K60.7 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

21.5 µm/m·K11.9 µin/in·°F
21 µm/m·K11.7 µin/in·°F

Min Service Temperature

-196°C-321 °F
-50°C-58 °F

Same in both: Specific Heat Capacity 963 J/kg·K0.23 BTU/lb·°F · Latent Heat of Fusion 389 J/g167 BTU/lb · Max Service Temperature (continuous) 150°C302 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

39 % IACS
27 % IACS

Electrical Resistivity

4.4×10⁻⁸ Ω·m1.73 µΩ·in
6.4×10⁻⁸ Ω·m2.52 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

62 / 100
58 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.83 V

Manufacturability

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

Machinability

70 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

120%
—

Weldability

78 / 100
30 / 100

Formability (cold)

10 / 100
—

Castability

95 / 100
90 / 100

Brazeability / Solderability

30 / 100
20 / 100

Polishability

45 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12.5 kg CO₂/kg
12 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
1,100 L/kg132 gal/lb

Typical Recycled Content

60%
45%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

98 kN·m/kg
113 kN·m/kg

Specific Stiffness (E / density)

27.1 MN·m/kg
27 MN·m/kg

Modulus of Resilience

239 kJ/m³
178 kJ/m³

Thermal Diffusivity

58.7 mm²/s
41.5 mm²/s

Thermal Shock Resistance Index

25
21

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 scale356364.0

Manufacturing and finishing

Capability356364.0
CNC machiningYes—
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.

356 vs 364.0 — frequently asked

Is 356 stronger than 364.0?

Yes. 356 has a typical yield strength of 186 MPa (27 ksi) against 159 MPa (23.1 ksi) for 364.0 — about 17% more. Tensile strength is 262 MPa (38 ksi) vs 296 MPa (42.9 ksi).

Which is cheaper, 356 or 364.0?

356 is the lower-cost material: it sits in the budget tier ($) while 364.0 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, 356 or 364.0?

356. Its machinability rates very good (70/100) against good (58/100) for 364.0; for welding the order is 356 first (very good, 78/100) then 364.0 (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 356 and 364.0 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.