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Copper Alloy C26000 vs C26800

Copper Alloy · grade comparison

Copper Alloy C26000 and C26800 are both copper alloy grades. Both yield at about 105 MPa — strength does not separate them. C26000 is the more ductile: elongation 62% versus 55% for C26800. C26800 runs hotter in service (250°C vs 200°C continuous). On the shop floor, C26800 sits in a lower cost tier (premium, $$$) than C26000 (high, $$$$).

C26000Choose it when the part is bent, formed or impact-loaded.

C26800Choose it when the part sees heat, or when cost is the deciding factor.

C26000 vs C26800: properties

C26000C26800

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
105 GPa15.2 Msi

Shear Modulus

41 GPa5.9 Msi
39 GPa5.7 Msi

Bulk Modulus

115 GPa16.7 Msi
111 GPa16.1 Msi

Poisson's Ratio

0.35
0.34

Tensile Strength (Ultimate)

325 MPa47.1 ksi
324 MPa47 ksi

Yield Strength (0.2% offset)

105 MPa15.2 ksi
110 MPa16 ksi

Elongation at Break

62%
55%

Shear Strength

234 MPa33.9 ksi
220 MPa31.9 ksi

Hardness, Rockwell B

—
20 HRB

Same in both: Fatigue Strength (Endurance Limit) 97 MPa14.1 ksi · Hardness, Brinell 55 HB · Hardness, Vickers 60 HV

Physical

Density and transition temperatures.

Density

8.53 g/cm³0.31 lb/in³
8.47 g/cm³0.31 lb/in³

Melting Point (Solidus)

915°C1,679 °F
909°C1,668 °F

Liquidus Temperature

955°C1,751 °F
932°C1,710 °F

Thermal

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

Thermal Expansion (CTE, 20–100 °C)

19.9 µm/m·K11.1 µin/in·°F
20 µm/m·K11.1 µin/in·°F

Latent Heat of Fusion

165 J/g70.9 BTU/lb
170 J/g73.1 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
250°C482 °F

Same in both: Thermal Conductivity 121 W/m·K69.9 BTU/hr·ft·°F · Specific Heat Capacity 375 J/kg·K0.09 BTU/lb·°F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

28 % IACS
27 % IACS

Electrical Resistivity

6.2×10⁻⁸ Ω·m2.44 µΩ·in
6.4×10⁻⁸ Ω·m2.52 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.27 V

Corrosion Resistance

50 / 100
58 / 100

Manufacturability

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

Machinability

30 / 100
32 / 100

Weldability

40 / 100
45 / 100

Formability (cold)

98 / 100
95 / 100

Castability

25 / 100
40 / 100

Brazeability / Solderability

90 / 100
85 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 30% · Polishability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
62 MJ/kg26,655 BTU/lb

Embodied Carbon (primary production)

3.5 kg CO₂/kg
3.8 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

45%
60%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

12.9 MN·m/kg
12.4 MN·m/kg

Modulus of Resilience

50 kJ/m³
58 kJ/m³

Thermal Diffusivity

37.8 mm²/s
38.1 mm²/s

Thermal Shock Resistance Index

18
19

Same in both: Specific Strength (UTS / density) 38 kN·m/kg

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 scaleC26000C26800

Manufacturing and finishing

CapabilityC26000C26800
CNC machiningYes—
Sheet metalYes—
Default conditionO—
Relative cost$$$$ High$$$ Premium
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.

C26000 vs C26800 — frequently asked

What is the difference between C26000 and C26800?

Copper Alloy C26000 and C26800 are both copper alloy grades. Both yield at about 105 MPa — strength does not separate them. C26000 is the more ductile: elongation 62% versus 55% for C26800.

Which is cheaper, C26000 or C26800?

C26800 is the lower-cost material: it sits in the premium tier ($$$) while C26000 is high ($$$$). 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, C26000 or C26800?

C26800. Its weldability rates fair (45/100) against fair (40/100) for C26000.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C26000 and C26800 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.