Copper Alloy C84400 vs ZCuPb10Sn10
Copper Alloy · grade comparison
Copper Alloy C84400 and ZCuPb10Sn10 are both copper alloy grades. C84400 is the stronger of the two: yield strength 110 MPa (16 ksi) against 90 MPa (13.1 ksi) for ZCuPb10Sn10, about 22% more; tensile strength follows at 234 MPa (33.9 ksi) vs 200 MPa (29 ksi). C84400 is the more ductile: elongation 26% versus 10% for ZCuPb10Sn10, and ZCuPb10Sn10 is harder (70 HB vs 55 HB). C84400 is stiffer (95 GPa vs 76 GPa) and C84400 conducts heat better (72 W/m·K vs 47 W/m·K). On the shop floor, ZCuPb10Sn10 sits in a lower cost tier (high, $$$$) than C84400 (specialty, $$$$$).
C84400Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
ZCuPb10Sn10Choose it when cost is the deciding factor.
C84400 vs ZCuPb10Sn10: 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
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Reduction in Area
Hardness, Vickers
Same in both: Poisson's Ratio 0.34
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)
Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Latent Heat of Fusion 170 J/g73.1 BTU/lb · 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).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Castability
Brazeability / Solderability
Same in both: Formability (cold) 10 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Typical Recycled Content
Same in both: Embodied Carbon (primary production) 3.2 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb
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 | C84400 | ZCuPb10Sn10 |
|---|---|---|
| CNC machining | Yes | — |
| Default condition | As Cast | — |
| Relative cost | $$$$$ Specialty | $$$$ High |
| Min. machined wall | 0.8 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| Chrome Plating | Yes | — |
| Electropolishing | Yes | — |
| Nickel Plating | Yes | — |
| Painting | Yes | — |
| Tin Plating | Yes | — |
They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C84400 vs ZCuPb10Sn10 — frequently asked
Is C84400 stronger than ZCuPb10Sn10?
Yes. C84400 has a typical yield strength of 110 MPa (16 ksi) against 90 MPa (13.1 ksi) for ZCuPb10Sn10 — about 22% more. Tensile strength is 234 MPa (33.9 ksi) vs 200 MPa (29 ksi).
Which is cheaper, C84400 or ZCuPb10Sn10?
ZCuPb10Sn10 is the lower-cost material: it sits in the high tier ($$$$) while C84400 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which welds better, C84400 or ZCuPb10Sn10?
C84400. Its weldability rates poor (20/100) against not recommended (12/100) for ZCuPb10Sn10.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C84400 and ZCuPb10Sn10 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.