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Copper Alloy C17410 vs C18200

Copper Alloy · grade comparison

Copper Alloy C17410 and C18200 are both copper alloy grades. C17410 is the stronger of the two: yield strength 690 MPa (100 ksi) against 430 MPa (62.4 ksi) for C18200, about 60% more; tensile strength follows at 725 MPa (105 ksi) vs 500 MPa (72.5 ksi). In exchange, C18200 is the more ductile: elongation 18% versus 10% for C17410, and C17410 is harder (215 HV vs 145 HV). C17410 is stiffer (138 GPa vs 117 GPa) and C18200 runs hotter in service (400°C vs 200°C continuous). On the shop floor, C17410 welds better (good vs poor).

C17410Choose it when strength drives the design, or when it will be welded.

C18200Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C17410 vs C18200: properties

C17410C18200

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

138 GPa20 Msi
117 GPa17 Msi

Shear Modulus

53 GPa7.7 Msi
44 GPa6.4 Msi

Bulk Modulus

115 GPa16.7 Msi
133 GPa19.3 Msi

Poisson's Ratio

0.3
0.34

Tensile Strength (Ultimate)

725 MPa105 ksi
500 MPa72.5 ksi

Yield Strength (0.2% offset)

690 MPa100 ksi
430 MPa62.4 ksi

Elongation at Break

10%
18%

Shear Strength

470 MPa68.2 ksi
310 MPa45 ksi

Fatigue Strength (Endurance Limit)

270 MPa39.2 ksi
170 MPa24.7 ksi

Hardness, Rockwell B

95 HRB
77 HRB

Hardness, Vickers

215 HV
145 HV

Hardness, Brinell

—
140 HB

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,030°C1,886 °F
1,070°C1,958 °F

Liquidus Temperature

1,070°C1,958 °F
1,080°C1,976 °F

Thermal

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

Thermal Conductivity

205 W/m·K118 BTU/hr·ft·°F
324 W/m·K187 BTU/hr·ft·°F

Specific Heat Capacity

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

Max Service Temperature (continuous)

200°C392 °F
400°C752 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 17.6 µm/m·K9.8 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

47 % IACS
82 % IACS

Electrical Resistivity

3.67×10⁻⁸ Ω·m1.44 µΩ·in
2.1×10⁻⁸ Ω·m0.827 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.2 V
-0.3 V

Same in both: Corrosion Resistance 62 / 100

Manufacturability

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

Machinability

45 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
60%

Weldability

55 / 100
30 / 100

Formability (cold)

45 / 100
35 / 100

Castability

45 / 100
—

Brazeability / Solderability

80 / 100
75 / 100

Polishability

80 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

72 MJ/kg30,954 BTU/lb
57 MJ/kg24,506 BTU/lb

Embodied Carbon (primary production)

5 kg CO₂/kg
3.5 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
350 L/kg41.9 gal/lb

Same in both: Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

82 kN·m/kg
56 kN·m/kg

Specific Stiffness (E / density)

15.6 MN·m/kg
13.2 MN·m/kg

Modulus of Resilience

1,725 kJ/m³
790 kJ/m³

Thermal Diffusivity

55.3 mm²/s
94.7 mm²/s

Thermal Shock Resistance Index

61
79

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 scaleC18200C17410

Manufacturing and finishing

CapabilityC17410C18200
CNC machining—Yes
Sheet metal—Yes
Default condition—H
Relative cost$$$$ High$$$$ High
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.

C17410 vs C18200 — frequently asked

Is C17410 stronger than C18200?

Yes. C17410 has a typical yield strength of 690 MPa (100 ksi) against 430 MPa (62.4 ksi) for C18200 — about 60% more. Tensile strength is 725 MPa (105 ksi) vs 500 MPa (72.5 ksi).

Which is cheaper, C17410 or C18200?

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, C17410 or C18200?

C17410, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for C18200; for welding the order is C17410 first (good, 55/100) then C18200 (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C17410 and C18200 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.