Copper Alloy C24000 vs C33000
Copper Alloy · grade comparison
Copper Alloy C24000 and C33000 are both copper alloy grades. C33000 is the stronger of the two: tensile strength 340 MPa (49.3 ksi) against 290 MPa (42.1 ksi) for C24000, about 17% more. C24000 is harder — 62 HV against 58 HV for C33000 — which matters for wear surfaces and threads. C24000 conducts heat better (138 W/m·K vs 121 W/m·K). On the shop floor, C33000 machines more easily (very good vs poor), C24000 welds better (fair vs poor), and C24000 forms better (95 vs 85 out of 100).
C24000Choose it when surface hardness matters, or when it will be welded.
C33000Choose it when strength drives the design, or when the part is machined in volume.
C24000 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
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Hardness, Vickers
Reduction in Area
Charpy V-Notch Impact (RT)
Same in both: Shear Modulus 39 GPa5.7 Msi · Poisson's Ratio 0.34 · Elongation at Break 55% · Shear Strength 220 MPa31.9 ksi · Fatigue Strength (Endurance Limit) 105 MPa15.2 ksi · Hardness, Brinell 55 HB
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Same in both: Specific Heat Capacity 375 J/kg·K0.09 BTU/lb·°F · Max Service Temperature (continuous) 200°C392 °F · 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
Brazeability / Solderability
Polishability
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 Diffusivity
Thermal Shock Resistance Index
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 | C24000 | C33000 |
|---|---|---|
| CNC machining | — | Yes |
| Sheet metal | — | Yes |
| Default condition | — | O |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | 0.8 mm |
| Best machined surface | — | Ra 1.6 µm |
| Chrome Plating | — | Yes |
| Electropolishing | — | Yes |
| Nickel Plating | — | Yes |
| Painting | — | Yes |
| Tin Plating | — | Yes |
They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C24000 vs C33000 — frequently asked
Is C33000 stronger than C24000?
Yes. C33000 has a typical tensile strength of 340 MPa (49.3 ksi) against 290 MPa (42.1 ksi) for C24000 — about 17% more.
Which is cheaper, C24000 or C33000?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, C24000 or C33000?
C33000. Its machinability rates very good (70/100) against poor (32/100) for C24000; for welding the order is C24000 first (fair, 45/100) then C33000 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C24000 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.