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Copper Alloy C84800 vs C87610

Copper Alloy · grade comparison

Copper Alloy C84800 and C87610 are both copper alloy grades. C87610 is the stronger of the two: yield strength 170 MPa (24.7 ksi) against 124 MPa (18 ksi) for C84800, about 37% more; tensile strength follows at 380 MPa (55.1 ksi) vs 262 MPa (38 ksi). In exchange, C84800 is the more ductile: elongation 35% versus 20% for C87610, and C87610 is harder (100 HB vs 55 HB). C87610 is stiffer (105 GPa vs 86 GPa) and C84800 conducts heat better (72 W/m·K vs 29 W/m·K). On the shop floor, C84800 machines more easily (excellent vs fair), C87610 welds better (excellent vs poor), and C87610 sits in a lower cost tier (high, $$$$) than C84800 (specialty, $$$$$).

C84800Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

C87610Choose it when strength drives the design, or when it will be welded.

C84800 vs C87610: properties

C84800C87610

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

86 GPa12.5 Msi
105 GPa15.2 Msi

Shear Modulus

32 GPa4.6 Msi
39 GPa5.7 Msi

Bulk Modulus

105 GPa15.2 Msi
110 GPa16 Msi

Tensile Strength (Ultimate)

262 MPa38 ksi
380 MPa55.1 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
170 MPa24.7 ksi

Elongation at Break

35%
20%

Shear Strength

190 MPa27.6 ksi
240 MPa34.8 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
110 MPa16 ksi

Hardness, Brinell

55 HB
100 HB

Reduction in Area

—
18%

Compressive Strength

—
400 MPa58 ksi

Charpy V-Notch Impact (RT)

—
30 J22.1 ft·lbf

Hardness, Rockwell B

—
58 HRB

Hardness, Vickers

—
105 HV

Same in both: Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

8.55 g/cm³0.31 lb/in³
8.3 g/cm³0.3 lb/in³

Melting Point (Solidus)

843°C1,549 °F
820°C1,508 °F

Liquidus Temperature

1,010°C1,850 °F
955°C1,751 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
29 W/m·K16.8 BTU/hr·ft·°F

Specific Heat Capacity

377 J/kg·K0.09 BTU/lb·°F
376 J/kg·K0.09 BTU/lb·°F

Latent Heat of Fusion

170 J/g73.1 BTU/lb
205 J/g88.1 BTU/lb

Same in both: Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

16 % IACS
6.7 % IACS

Electrical Resistivity

1.08×10⁻⁷ Ω·m4.25 µΩ·in
2.6×10⁻⁷ Ω·m10.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.26 V

Corrosion Resistance

58 / 100
72 / 100

Manufacturability

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

Machinability

88 / 100
42 / 100

Weldability

20 / 100
88 / 100

Castability

90 / 100
82 / 100

Brazeability / Solderability

60 / 100
80 / 100

Polishability

55 / 100
78 / 100

Machinability Rating (AISI 1212 = 100 %)

—
45%

Formability (cold)

—
20 / 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

Embodied Water

250 L/kg30 gal/lb
350 L/kg41.9 gal/lb

Typical Recycled Content

85%
75%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

31 kN·m/kg
46 kN·m/kg

Specific Stiffness (E / density)

10.1 MN·m/kg
12.7 MN·m/kg

Modulus of Resilience

89 kJ/m³
138 kJ/m³

Thermal Diffusivity

22.3 mm²/s
9.3 mm²/s

Thermal Shock Resistance Index

12
6

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 scaleC84800C87610

Manufacturing and finishing

CapabilityC84800C87610
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 C87610 — frequently asked

Is C87610 stronger than C84800?

Yes. C87610 has a typical yield strength of 170 MPa (24.7 ksi) against 124 MPa (18 ksi) for C84800 — about 37% more. Tensile strength is 380 MPa (55.1 ksi) vs 262 MPa (38 ksi).

Which is cheaper, C84800 or C87610?

C87610 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 is easier to machine, C84800 or C87610?

C84800. Its machinability rates excellent (88/100) against fair (42/100) for C87610; for welding the order is C87610 first (excellent, 88/100) then C84800 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C84800 and C87610 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.