Copper Alloy C26800 vs C33000
Copper Alloy · grade comparison
Copper Alloy C26800 and C33000 are both copper alloy grades. Both yield at about 110 MPa — strength does not separate them. C26800 runs hotter in service (250°C vs 200°C continuous). On the shop floor, C33000 machines more easily (very good vs poor), C26800 welds better (fair vs poor), and C26800 forms better (95 vs 85 out of 100).
C26800Choose it when the part sees heat, or when it will be welded.
C33000Choose it when the part is machined in volume.
C26800 vs C33000: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Fatigue Strength (Endurance Limit)
Hardness, Rockwell B
Hardness, Vickers
Reduction in Area
Charpy V-Notch Impact (RT)
Same in both: Shear Modulus 39 GPa5.7 Msi · Bulk Modulus 111 GPa16.1 Msi · Poisson's Ratio 0.34 · Yield Strength (0.2% offset) 110 MPa16 ksi · Elongation at Break 55% · Shear Strength 220 MPa31.9 ksi · Hardness, Brinell 55 HB
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
Same in both: Density 8.47 g/cm³0.31 lb/in³
Thermal
How each material carries heat and how hot it can run.
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
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 · Latent Heat of Fusion 170 J/g73.1 BTU/lb · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Polishability
Same in both: Brazeability / Solderability 85 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Shock Resistance Index
Same in both: Thermal Diffusivity 38.1 mm²/s
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.
Manufacturing and finishing
| Capability | C26800 | C33000 |
|---|---|---|
| CNC machining | — | Yes |
| Sheet metal | — | Yes |
| Default condition | — | O |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | — | 0.8 mm |
| Best machined surface | — | Ra 1.6 µm |
| Chrome Plating | — | Yes |
| Electropolishing | — | Yes |
| Nickel Plating | — | Yes |
| Painting | — | Yes |
| Tin Plating | — | Yes |
They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C26800 vs C33000 — frequently asked
What is the difference between C26800 and C33000?
Copper Alloy C26800 and C33000 are both copper alloy grades. Both yield at about 110 MPa — strength does not separate them. C26800 runs hotter in service (250°C vs 200°C continuous).
Which is cheaper, C26800 or C33000?
C26800 is the lower-cost material: it sits in the premium tier ($$$) while C33000 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 is easier to machine, C26800 or C33000?
C33000. Its machinability rates very good (70/100) against poor (32/100) for C26800; for welding the order is C26800 first (fair, 45/100) then C33000 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C26800 and C33000 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.