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Copper Alloy C87600 vs C95500

Copper Alloy · grade comparison

Copper Alloy C87600 and C95500 are both copper alloy grades. C95500 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 220 MPa (31.9 ksi) for C87600, about 36% more; tensile strength follows at 700 MPa (102 ksi) vs 435 MPa (63.1 ksi). In exchange, C87600 is the more ductile: elongation 20% versus 8% for C95500, and C95500 is harder (192 HB vs 105 HB). C95500 is lighter (7.53 g/cm³ vs 8.3 g/cm³ for C87600) and C95500 is stiffer (110 GPa vs 103 GPa). On the shop floor, C87600 welds better (very good vs good) and C87600 sits in a lower cost tier (high, $$$$) than C95500 (specialty, $$$$$).

C87600Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

C95500Choose it when strength drives the design, or when weight is the constraint.

C87600 vs C95500: properties

C87600C95500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

103 GPa14.9 Msi
110 GPa16 Msi

Shear Modulus

39 GPa5.7 Msi
42 GPa6.1 Msi

Bulk Modulus

115 GPa16.7 Msi
102 GPa14.8 Msi

Poisson's Ratio

0.33
0.32

Tensile Strength (Ultimate)

435 MPa63.1 ksi
700 MPa102 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
300 MPa43.5 ksi

Elongation at Break

20%
8%

Reduction in Area

20%
—

Shear Strength

260 MPa37.7 ksi
425 MPa61.6 ksi

Fatigue Strength (Endurance Limit)

130 MPa18.9 ksi
240 MPa34.8 ksi

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

105 HB
192 HB

Hardness, Rockwell B

62 HRB
92 HRB

Hardness, Vickers

110 HV
—

Fracture Toughness (K_IC)

—
50 MPa·√m45.5 ksi·√in

Physical

Density and transition temperatures.

Density

8.3 g/cm³0.3 lb/in³
7.53 g/cm³0.27 lb/in³

Melting Point (Solidus)

900°C1,652 °F
1,054°C1,929 °F

Liquidus Temperature

1,010°C1,850 °F
1,064°C1,947 °F

Thermal

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

Thermal Conductivity

29 W/m·K16.8 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Specific Heat Capacity

380 J/kg·K0.09 BTU/lb·°F
419 J/kg·K0.1 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

18 µm/m·K10 µin/in·°F
16.2 µm/m·K9 µin/in·°F

Latent Heat of Fusion

205 J/g88.1 BTU/lb
210 J/g90.3 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
300°C572 °F

Min Service Temperature

-196°C-321 °F
-100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

6.5 % IACS
8.5 % IACS

Electrical Resistivity

2.65×10⁻⁷ Ω·m10.4 µΩ·in
2.03×10⁻⁷ Ω·m7.99 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.26 V
-0.28 V

Corrosion Resistance

70 / 100
80 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

40%
50%

Weldability

75 / 100
60 / 100

Formability (cold)

20 / 100
15 / 100

Castability

85 / 100
75 / 100

Brazeability / Solderability

70 / 100
30 / 100

Polishability

75 / 100
70 / 100

Same in both: Machinability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

50 MJ/kg21,496 BTU/lb
60 MJ/kg25,795 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
4.2 kg CO₂/kg

Embodied Water

260 L/kg31.2 gal/lb
250 L/kg30 gal/lb

Typical Recycled Content

75%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

52 kN·m/kg
93 kN·m/kg

Specific Stiffness (E / density)

12.4 MN·m/kg
14.6 MN·m/kg

Modulus of Resilience

235 kJ/m³
409 kJ/m³

Thermal Diffusivity

9.2 mm²/s
13.3 mm²/s

Thermal Shock Resistance Index

7
16

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 scaleC95500C87600

Manufacturing and finishing

CapabilityC87600C95500
CNC machining—Yes
Default condition—As Cast
Relative cost$$$$ High$$$$$ Specialty
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.

C87600 vs C95500 — frequently asked

Is C95500 stronger than C87600?

Yes. C95500 has a typical yield strength of 300 MPa (43.5 ksi) against 220 MPa (31.9 ksi) for C87600 — about 36% more. Tensile strength is 700 MPa (102 ksi) vs 435 MPa (63.1 ksi).

Which is cheaper, C87600 or C95500?

C87600 is the lower-cost material: it sits in the high tier ($$$$) while C95500 is specialty ($$$$$). 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, C87600 or C95500?

C87600. Its weldability rates very good (75/100) against good (60/100) for C95500.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C87600 and C95500 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.