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Copper Alloy C84800 vs ZCuPb10Sn10

Copper Alloy · grade comparison

Copper Alloy C84800 and ZCuPb10Sn10 are both copper alloy grades. C84800 is the stronger of the two: yield strength 124 MPa (18 ksi) against 90 MPa (13.1 ksi) for ZCuPb10Sn10, about 38% more; tensile strength follows at 262 MPa (38 ksi) vs 200 MPa (29 ksi). C84800 is the more ductile: elongation 35% versus 10% for ZCuPb10Sn10, and ZCuPb10Sn10 is harder (70 HB vs 55 HB). C84800 is lighter (8.55 g/cm³ vs 8.93 g/cm³ for ZCuPb10Sn10) and C84800 is stiffer (86 GPa vs 76 GPa). On the shop floor, ZCuPb10Sn10 sits in a lower cost tier (high, $$$$) than C84800 (specialty, $$$$$).

C84800Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

ZCuPb10Sn10Choose it when cost is the deciding factor.

C84800 vs ZCuPb10Sn10: properties

C84800ZCuPb10Sn10

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

86 GPa12.5 Msi
76 GPa11 Msi

Shear Modulus

32 GPa4.6 Msi
28 GPa4.1 Msi

Bulk Modulus

105 GPa15.2 Msi
95 GPa13.8 Msi

Tensile Strength (Ultimate)

262 MPa38 ksi
200 MPa29 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
90 MPa13.1 ksi

Elongation at Break

35%
10%

Shear Strength

190 MPa27.6 ksi
150 MPa21.8 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
70 MPa10.2 ksi

Hardness, Brinell

55 HB
70 HB

Reduction in Area

—
12%

Compressive Strength

—
225 MPa32.6 ksi

Charpy V-Notch Impact (RT)

—
10 J7.4 ft·lbf

Hardness, Rockwell B

—
30 HRB

Hardness, Vickers

—
73 HV

Same in both: Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

8.55 g/cm³0.31 lb/in³
8.93 g/cm³0.32 lb/in³

Melting Point (Solidus)

843°C1,549 °F
762°C1,404 °F

Liquidus Temperature

1,010°C1,850 °F
930°C1,706 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
47 W/m·K27.2 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

18 µm/m·K10 µin/in·°F
18.5 µm/m·K10.3 µin/in·°F

Min Service Temperature

-196°C-321 °F
-200°C-328 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

16 % IACS
10 % IACS

Electrical Resistivity

1.08×10⁻⁷ Ω·m4.25 µΩ·in
1.72×10⁻⁷ Ω·m6.77 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.28 V

Corrosion Resistance

58 / 100
55 / 100

Manufacturability

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

Weldability

20 / 100
12 / 100

Castability

90 / 100
85 / 100

Polishability

55 / 100
60 / 100

Machinability Rating (AISI 1212 = 100 %)

—
80%

Formability (cold)

—
10 / 100

Same in both: Machinability 88 / 100 · Brazeability / Solderability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

45 MJ/kg19,347 BTU/lb
48 MJ/kg20,636 BTU/lb

Embodied Carbon (primary production)

3 kg CO₂/kg
3.2 kg CO₂/kg

Typical Recycled Content

85%
60%

Same in both: Embodied Water 250 L/kg30 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

31 kN·m/kg
22 kN·m/kg

Specific Stiffness (E / density)

10.1 MN·m/kg
8.5 MN·m/kg

Modulus of Resilience

89 kJ/m³
53 kJ/m³

Thermal Diffusivity

22.3 mm²/s
14 mm²/s

Thermal Shock Resistance Index

12
7

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 scaleC84800ZCuPb10Sn10

Manufacturing and finishing

CapabilityC84800ZCuPb10Sn10
CNC machiningYes—
Default conditionAs Cast—
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.

C84800 vs ZCuPb10Sn10 — frequently asked

Is C84800 stronger than ZCuPb10Sn10?

Yes. C84800 has a typical yield strength of 124 MPa (18 ksi) against 90 MPa (13.1 ksi) for ZCuPb10Sn10 — about 38% more. Tensile strength is 262 MPa (38 ksi) vs 200 MPa (29 ksi).

Which is cheaper, C84800 or ZCuPb10Sn10?

ZCuPb10Sn10 is the lower-cost material: it sits in the high tier ($$$$) while C84800 is specialty ($$$$$). 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, C84800 or ZCuPb10Sn10?

C84800. 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 C84800 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.