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Copper Alloy C10100 vs C82600

Copper Alloy · grade comparison

Copper Alloy C10100 and C82600 are both copper alloy grades. C82600 is the stronger of the two: yield strength 1,035 MPa (150 ksi) against 69 MPa (10 ksi) for C10100, about 15 times as much; tensile strength follows at 1,140 MPa (165 ksi) vs 235 MPa (34.1 ksi). In exchange, C10100 is the more ductile: elongation 45% versus 1% for C82600, and C82600 is harder (400 HB vs 45 HB). C82600 is lighter (8.23 g/cm³ vs 8.94 g/cm³ for C10100) and C82600 is stiffer (131 GPa vs 117 GPa). On the shop floor, C82600 machines more easily (fair vs poor), C10100 welds better (very good vs poor), and C82600 sits in a lower cost tier (high, $$$$) than C10100 (specialty, $$$$$).

C10100Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

C82600Choose it when strength drives the design, or when weight is the constraint.

C10100 vs C82600: properties

C10100C82600

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

117 GPa17 Msi
131 GPa19 Msi

Shear Modulus

44 GPa6.4 Msi
50 GPa7.3 Msi

Bulk Modulus

140 GPa20.3 Msi
115 GPa16.7 Msi

Poisson's Ratio

0.34
0.3

Tensile Strength (Ultimate)

235 MPa34.1 ksi
1,140 MPa165 ksi

Yield Strength (0.2% offset)

69 MPa10 ksi
1,035 MPa150 ksi

Elongation at Break

45%
1%

Reduction in Area

75%
—

Shear Strength

152 MPa22 ksi
720 MPa104 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
240 MPa34.8 ksi

Hardness, Brinell

45 HB
400 HB

Hardness, Vickers

50 HV
420 HV

Compressive Strength

—
1,200 MPa174 ksi

Hardness, Rockwell C

—
43 HRC

Physical

Density and transition temperatures.

Density

8.94 g/cm³0.32 lb/in³
8.23 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,083°C1,981 °F
857°C1,575 °F

Liquidus Temperature

1,083°C1,981 °F
954°C1,749 °F

Thermal

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

Thermal Conductivity

391 W/m·K226 BTU/hr·ft·°F
105 W/m·K60.7 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

205 J/g88.1 BTU/lb
—

Min Service Temperature

-253°C-423 °F
-200°C-328 °F

Same in both: Max Service Temperature (continuous) 200°C392 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

101 % IACS
20 % IACS

Electrical Resistivity

1.71×10⁻⁸ Ω·m0.672 µΩ·in
8.6×10⁻⁸ Ω·m3.39 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.24 V
-0.25 V

Corrosion Resistance

58 / 100
65 / 100

Manufacturability

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

Machinability

18 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

70 / 100
30 / 100

Formability (cold)

95 / 100
5 / 100

Brazeability / Solderability

95 / 100
55 / 100

Castability

—
80 / 100

Same in both: Polishability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

60 MJ/kg25,795 BTU/lb
95 MJ/kg40,843 BTU/lb

Embodied Carbon (primary production)

3.8 kg CO₂/kg
6.5 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

5%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

26 kN·m/kg
139 kN·m/kg

Specific Stiffness (E / density)

13.1 MN·m/kg
15.9 MN·m/kg

Modulus of Resilience

20 kJ/m³
4,089 kJ/m³

Thermal Diffusivity

113.6 mm²/s
30.4 mm²/s

Thermal Shock Resistance Index

44
52

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 scaleC10100C82600

Manufacturing and finishing

CapabilityC10100C82600
CNC machiningYes—
Sheet metalYes—
Default conditionO—
Relative cost$$$$$ Specialty$$$$ High
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
Chrome PlatingYes—
ElectropolishingYes—
Nickel PlatingYes—
PaintingYes—
Tin PlatingYes—

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

C10100 vs C82600 — frequently asked

Is C82600 stronger than C10100?

Yes. C82600 has a typical yield strength of 1,035 MPa (150 ksi) against 69 MPa (10 ksi) for C10100 — about 15 times as much. Tensile strength is 1,140 MPa (165 ksi) vs 235 MPa (34.1 ksi).

Which is cheaper, C10100 or C82600?

C82600 is the lower-cost material: it sits in the high tier ($$$$) while C10100 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, C10100 or C82600?

C82600. Its machinability rates fair (45/100) against poor (18/100) for C10100; for welding the order is C10100 first (very good, 70/100) then C82600 (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C10100 and C82600 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.