FabDigitFabDigit

Aluminum 2017 vs QC-10

Aluminum · grade comparison

Aluminum 2017 and QC-10 are both aluminum grades. QC-10 is the stronger of the two: yield strength 483 MPa (70.1 ksi) against 276 MPa (40 ksi) for 2017, about 75% more; tensile strength follows at 538 MPa (78 ksi) vs 427 MPa (61.9 ksi). In exchange, 2017 is the more ductile: elongation 22% versus 9% for QC-10, and QC-10 is harder (165 HB vs 105 HB). QC-10 runs hotter in service (150°C vs 120°C continuous) and QC-10 conducts heat better (155 W/m·K vs 134 W/m·K).

2017Choose it when the part is bent, formed or impact-loaded.

QC-10Choose it when strength drives the design, or when the part sees heat.

2017 vs QC-10: properties

2017QC-10

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72.4 GPa10.5 Msi
71.5 GPa10.4 Msi

Shear Modulus

27 GPa3.9 Msi
26.9 GPa3.9 Msi

Bulk Modulus

75 GPa10.9 Msi
71 GPa10.3 Msi

Tensile Strength (Ultimate)

427 MPa61.9 ksi
538 MPa78 ksi

Yield Strength (0.2% offset)

276 MPa40 ksi
483 MPa70.1 ksi

Elongation at Break

22%
9%

Compressive Strength

276 MPa40 ksi
490 MPa71.1 ksi

Shear Strength

260 MPa37.7 ksi
305 MPa44.2 ksi

Fatigue Strength (Endurance Limit)

124 MPa18 ksi
220 MPa31.9 ksi

Fracture Toughness (K_IC)

30 MPa·√m27.3 ksi·√in
34 MPa·√m30.9 ksi·√in

Hardness, Brinell

105 HB
165 HB

Hardness, Rockwell B

65 HRB
87 HRB

Hardness, Vickers

115 HV
—

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.79 g/cm³0.1 lb/in³
2.85 g/cm³0.1 lb/in³

Melting Point (Solidus)

513°C955 °F
490°C914 °F

Liquidus Temperature

641°C1,186 °F
630°C1,166 °F

Thermal

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

Thermal Conductivity

134 W/m·K77.4 BTU/hr·ft·°F
155 W/m·K89.6 BTU/hr·ft·°F

Specific Heat Capacity

873 J/kg·K0.21 BTU/lb·°F
860 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Max Service Temperature (continuous)

120°C248 °F
150°C302 °F

Same in both: Latent Heat of Fusion 390 J/g168 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

34 % IACS
40 % IACS

Electrical Resistivity

5.07×10⁻⁸ Ω·m2 µΩ·in
4.3×10⁻⁸ Ω·m1.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.69 V
-0.84 V

Corrosion Resistance

33 / 100
45 / 100

Manufacturability

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

Machinability

78 / 100
85 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
300%

Formability (cold)

45 / 100
20 / 100

Castability

25 / 100
—

Brazeability / Solderability

15 / 100
10 / 100

Polishability

55 / 100
80 / 100

Same in both: Weldability 20 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

12 kg CO₂/kg
12.5 kg CO₂/kg

Typical Recycled Content

30%
20%

Same in both: Embodied Water 1,200 L/kg144 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

153 kN·m/kg
189 kN·m/kg

Specific Stiffness (E / density)

25.9 MN·m/kg
25.1 MN·m/kg

Modulus of Resilience

526 kJ/m³
1,631 kJ/m³

Thermal Diffusivity

55 mm²/s
63.2 mm²/s

Thermal Shock Resistance Index

33
50

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 scale2017QC-10

Manufacturing and finishing

Capability2017QC-10
Sheet metalYes—
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall0.8 mm0.5 mm
Best machined surfaceRa 0.8 µmRa 0.8 µm

Both are offered for CNC machining. 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.

2017 vs QC-10 — frequently asked

Is QC-10 stronger than 2017?

Yes. QC-10 has a typical yield strength of 483 MPa (70.1 ksi) against 276 MPa (40 ksi) for 2017 — about 75% more. Tensile strength is 538 MPa (78 ksi) vs 427 MPa (61.9 ksi).

Which is cheaper, 2017 or QC-10?

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

Which is easier to machine, 2017 or QC-10?

QC-10. Its machinability rates excellent (85/100) against very good (78/100) for 2017.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2017 and QC-10 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.