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Copper Alloy C15100 vs C17510

Copper Alloy · grade comparison

Copper Alloy C15100 and C17510 are both copper alloy grades. C15100 is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 170 MPa (24.7 ksi) for C17510, about 94% more; tensile strength follows at 360 MPa (52.2 ksi) vs 310 MPa (45 ksi). In exchange, C17510 is the more ductile: elongation 25% versus 6% for C15100, and C15100 is harder (105 HB vs 70 HB). C17510 is stiffer (131 GPa vs 120 GPa) and C15100 runs hotter in service (450°C vs 200°C continuous). On the shop floor, C17510 welds better (good vs fair) and C15100 sits in a lower cost tier (high, $$$$) than C17510 (specialty, $$$$$).

C15100Choose it when strength drives the design, or when the part sees heat.

C17510Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

C15100 vs C17510: properties

C15100C17510

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

120 GPa17.4 Msi
131 GPa19 Msi

Shear Modulus

45 GPa6.5 Msi
53 GPa7.7 Msi

Bulk Modulus

140 GPa20.3 Msi
115 GPa16.7 Msi

Poisson's Ratio

0.33
0.3

Tensile Strength (Ultimate)

360 MPa52.2 ksi
310 MPa45 ksi

Yield Strength (0.2% offset)

330 MPa47.9 ksi
170 MPa24.7 ksi

Elongation at Break

6%
25%

Shear Strength

215 MPa31.2 ksi
210 MPa30.5 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
165 MPa23.9 ksi

Hardness, Brinell

105 HB
70 HB

Hardness, Rockwell B

62 HRB
35 HRB

Hardness, Vickers

115 HV
75 HV

Reduction in Area

—
60%

Fracture Toughness (K_IC)

—
95 MPa·√m86.5 ksi·√in

Charpy V-Notch Impact (RT)

—
60 J44.3 ft·lbf

Physical

Density and transition temperatures.

Density

8.89 g/cm³0.32 lb/in³
8.75 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,080°C1,976 °F
1,000°C1,832 °F

Liquidus Temperature

1,085°C1,985 °F
1,070°C1,958 °F

Thermal

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

Thermal Conductivity

350 W/m·K202 BTU/hr·ft·°F
105 W/m·K60.7 BTU/hr·ft·°F

Specific Heat Capacity

385 J/kg·K0.09 BTU/lb·°F
418 J/kg·K0.1 BTU/lb·°F

Latent Heat of Fusion

205 J/g88.1 BTU/lb
—

Max Service Temperature (continuous)

450°C842 °F
200°C392 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 17.6 µm/m·K9.8 µin/in·°F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

92 % IACS
22 % IACS

Electrical Resistivity

1.87×10⁻⁸ Ω·m0.736 µΩ·in
7.8×10⁻⁸ Ω·m3.07 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V · Corrosion Resistance 60 / 100

Manufacturability

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

Machinability

22 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
18%

Weldability

45 / 100
58 / 100

Formability (cold)

40 / 100
85 / 100

Polishability

70 / 100
80 / 100

Same in both: Castability 45 / 100 · Brazeability / Solderability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
65 MJ/kg27,945 BTU/lb

Embodied Carbon (primary production)

3.8 kg CO₂/kg
4.6 kg CO₂/kg

Same in both: Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

40 kN·m/kg
35 kN·m/kg

Specific Stiffness (E / density)

13.5 MN·m/kg
15 MN·m/kg

Modulus of Resilience

454 kJ/m³
110 kJ/m³

Thermal Diffusivity

102.3 mm²/s
28.7 mm²/s

Thermal Shock Resistance Index

60
14

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 scaleC17510C15100

Manufacturing and finishing

CapabilityC15100C17510
CNC machining—Yes
Sheet metal—Yes
Default condition—A
Relative cost$$$$ High$$$$$ Specialty
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
Chrome Plating—Yes
Electropolishing—Yes
Nickel Plating—Yes
Painting—Yes
Tin Plating—Yes

They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

C15100 vs C17510 — frequently asked

Is C15100 stronger than C17510?

Yes. C15100 has a typical yield strength of 330 MPa (47.9 ksi) against 170 MPa (24.7 ksi) for C17510 — about 94% more. Tensile strength is 360 MPa (52.2 ksi) vs 310 MPa (45 ksi).

Which is cheaper, C15100 or C17510?

C15100 is the lower-cost material: it sits in the high tier ($$$$) while C17510 is specialty ($$$$$). 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, C15100 or C17510?

C17510. Its weldability rates good (58/100) against fair (45/100) for C15100.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C15100 and C17510 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.