FabDigitFabDigit

Aluminum ACP 5080 vs TK Ultra 7

Aluminum · grade comparison

Aluminum ACP 5080 and TK Ultra 7 are both aluminum grades, both mold quality al. TK Ultra 7 is the stronger of the two: yield strength 320 MPa (46.4 ksi) against 110 MPa (16 ksi) for ACP 5080, about 191% more; tensile strength follows at 370 MPa (53.7 ksi) vs 172 MPa (24.9 ksi). TK Ultra 7 is the more ductile: elongation 5% versus 3% for ACP 5080, and TK Ultra 7 is harder (115 HB vs 65 HB). ACP 5080 runs hotter in service (150°C vs 120°C continuous). On the shop floor, ACP 5080 welds better (fair vs poor) and ACP 5080 sits in a lower cost tier (standard, $$) than TK Ultra 7 (high, $$$$).

ACP 5080Choose it when the part sees heat, or when it will be welded.

TK Ultra 7Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

ACP 5080 vs TK Ultra 7: properties

ACP 5080TK Ultra 7

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

26.5 GPa3.8 Msi
27 GPa3.9 Msi

Bulk Modulus

70 GPa10.2 Msi
76 GPa11 Msi

Tensile Strength (Ultimate)

172 MPa24.9 ksi
370 MPa53.7 ksi

Yield Strength (0.2% offset)

110 MPa16 ksi
320 MPa46.4 ksi

Elongation at Break

3%
5%

Compressive Strength

115 MPa16.7 ksi
325 MPa47.1 ksi

Shear Strength

110 MPa16 ksi
220 MPa31.9 ksi

Fatigue Strength (Endurance Limit)

55 MPa8 ksi
140 MPa20.3 ksi

Hardness, Brinell

65 HB
115 HB

Fracture Toughness (K_IC)

—
25 MPa·√m22.8 ksi·√in

Hardness, Rockwell B

—
79 HRB

Hardness, Vickers

—
122 HV

Same in both: Elastic (Young's) Modulus 71 GPa10.3 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

570°C1,058 °F
475°C887 °F

Liquidus Temperature

640°C1,184 °F
635°C1,175 °F

Thermal

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

Thermal Conductivity

142 W/m·K82 BTU/hr·ft·°F
150 W/m·K86.7 BTU/hr·ft·°F

Specific Heat Capacity

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

Max Service Temperature (continuous)

150°C302 °F
120°C248 °F

Min Service Temperature

-80°C-112 °F
-196°C-321 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 23.4 µm/m·K13 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

36 % IACS
33 % IACS

Electrical Resistivity

4.8×10⁻⁸ Ω·m1.89 µΩ·in
5.2×10⁻⁸ Ω·m2.05 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

55 / 100
45 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.8 V

Manufacturability

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

Machinability

92 / 100
88 / 100

Machinability Rating (AISI 1212 = 100 %)

180%
300%

Weldability

45 / 100
20 / 100

Formability (cold)

12 / 100
15 / 100

Castability

80 / 100
55 / 100

Brazeability / Solderability

30 / 100
15 / 100

Polishability

35 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

210 MJ/kg90,284 BTU/lb
200 MJ/kg85,985 BTU/lb

Typical Recycled Content

80%
25%

Same in both: Embodied Carbon (primary production) 12 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

61 kN·m/kg
131 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
25.2 MN·m/kg

Modulus of Resilience

85 kJ/m³
721 kJ/m³

Thermal Diffusivity

52.7 mm²/s
61.9 mm²/s

Thermal Shock Resistance Index

15
33

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 scaleACP 5080TK Ultra 7

Manufacturing and finishing

CapabilityACP 5080TK Ultra 7
Default condition——
Relative cost$$ Standard$$$$ High
Min. machined wall0.5 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.

ACP 5080 vs TK Ultra 7 — frequently asked

Is TK Ultra 7 stronger than ACP 5080?

Yes. TK Ultra 7 has a typical yield strength of 320 MPa (46.4 ksi) against 110 MPa (16 ksi) for ACP 5080 — about 191% more. Tensile strength is 370 MPa (53.7 ksi) vs 172 MPa (24.9 ksi).

Which is cheaper, ACP 5080 or TK Ultra 7?

ACP 5080 is the lower-cost material: it sits in the standard tier ($$) while TK Ultra 7 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, ACP 5080 or TK Ultra 7?

ACP 5080. Its weldability rates fair (45/100) against poor (20/100) for TK Ultra 7.

Ready to make it?

Upload a CAD file and FabDigit prices the part in ACP 5080 and TK Ultra 7 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.