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Copper Alloy C17450 vs C17460

Copper Alloy · grade comparison

Copper Alloy C17450 and C17460 are both copper alloy grades. C17460 is the stronger of the two: tensile strength 760 MPa (110 ksi) against 700 MPa (102 ksi) for C17450, about 9% more. C17460 runs hotter in service (340°C vs 200°C continuous). On the shop floor, C17460 machines more easily (45 vs 35 out of 100), C17450 welds better (good vs fair), and C17450 forms better (good vs poor).

C17450Choose it when it will be welded.

C17460Choose it when strength drives the design, or when the part sees heat.

C17450 vs C17460: properties

C17450C17460

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

700 MPa102 ksi
760 MPa110 ksi

Yield Strength (0.2% offset)

600 MPa87 ksi
620 MPa89.9 ksi

Shear Strength

420 MPa60.9 ksi
480 MPa69.6 ksi

Fatigue Strength (Endurance Limit)

260 MPa37.7 ksi
240 MPa34.8 ksi

Hardness, Brinell

200 HB
210 HB

Hardness, Rockwell B

93 HRB
95 HRB

Hardness, Vickers

210 HV
220 HV

Hardness, Rockwell C

—
20 HRC

Same in both: Elastic (Young's) Modulus 138 GPa20 Msi · Shear Modulus 53 GPa7.7 Msi · Bulk Modulus 115 GPa16.7 Msi · Poisson's Ratio 0.3 · Elongation at Break 12%

Physical

Density and transition temperatures.

Density

8.8 g/cm³0.32 lb/in³
8.83 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,030°C1,886 °F
1,000°C1,832 °F

Same in both: Liquidus Temperature 1,070°C1,958 °F

Thermal

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

Thermal Conductivity

210 W/m·K121 BTU/hr·ft·°F
230 W/m·K133 BTU/hr·ft·°F

Specific Heat Capacity

420 J/kg·K0.1 BTU/lb·°F
419 J/kg·K0.1 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

17.6 µm/m·K9.8 µin/in·°F
17.5 µm/m·K9.7 µin/in·°F

Max Service Temperature (continuous)

200°C392 °F
340°C644 °F

Same in both: Latent Heat of Fusion 205 J/g88.1 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

50 % IACS
52 % IACS

Electrical Resistivity

3.45×10⁻⁸ Ω·m1.36 µΩ·in
3.32×10⁻⁸ Ω·m1.31 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.2 V
-0.22 V

Corrosion Resistance

58 / 100
65 / 100

Manufacturability

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

Machinability

35 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

55 / 100
45 / 100

Formability (cold)

55 / 100
30 / 100

Brazeability / Solderability

75 / 100
80 / 100

Polishability

78 / 100
80 / 100

Castability

—
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

75 MJ/kg32,244 BTU/lb
95 MJ/kg40,843 BTU/lb

Embodied Carbon (primary production)

5.2 kg CO₂/kg
6.5 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

25%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

80 kN·m/kg
86 kN·m/kg

Specific Stiffness (E / density)

15.7 MN·m/kg
15.6 MN·m/kg

Modulus of Resilience

1,304 kJ/m³
1,393 kJ/m³

Thermal Diffusivity

56.8 mm²/s
62.2 mm²/s

Thermal Shock Resistance Index

61
72

Strength versus weight

Yield strength against density for every copper alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC17450C17460

Manufacturing and finishing

CapabilityC17450C17460
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

C17450 vs C17460 — frequently asked

Is C17460 stronger than C17450?

Yes. C17460 has a typical tensile strength of 760 MPa (110 ksi) against 700 MPa (102 ksi) for C17450 — about 9% more.

Which is cheaper, C17450 or C17460?

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

Which is easier to machine, C17450 or C17460?

C17460, by a small margin. Both rate fair for machinability — 45/100 against 35/100 for C17450; for welding the order is C17450 first (good, 55/100) then C17460 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C17450 and C17460 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.