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Copper Alloy C93500 vs C95500

Copper Alloy · grade comparison

Copper Alloy C93500 and C95500 are both copper alloy grades. C95500 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 138 MPa (20 ksi) for C93500, about 117% more; tensile strength follows at 700 MPa (102 ksi) vs 241 MPa (35 ksi). In exchange, C93500 is the more ductile: elongation 20% versus 8% for C95500, and C95500 is harder (192 HB vs 65 HB). C95500 is lighter (7.53 g/cm³ vs 8.92 g/cm³ for C93500) and C95500 is stiffer (110 GPa vs 97 GPa). On the shop floor, C93500 machines more easily (excellent vs fair), C95500 welds better (good vs poor), and C93500 sits in a lower cost tier (high, $$$$) than C95500 (specialty, $$$$$).

C93500Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

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

C93500 vs C95500: properties

C93500C95500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

97 GPa14.1 Msi
110 GPa16 Msi

Shear Modulus

37 GPa5.4 Msi
42 GPa6.1 Msi

Bulk Modulus

101 GPa14.6 Msi
102 GPa14.8 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

241 MPa35 ksi
700 MPa102 ksi

Yield Strength (0.2% offset)

138 MPa20 ksi
300 MPa43.5 ksi

Elongation at Break

20%
8%

Reduction in Area

15%
—

Compressive Strength

210 MPa30.5 ksi
—

Shear Strength

165 MPa23.9 ksi
425 MPa61.6 ksi

Fatigue Strength (Endurance Limit)

70 MPa10.2 ksi
240 MPa34.8 ksi

Charpy V-Notch Impact (RT)

11 J8.1 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

65 HB
192 HB

Hardness, Rockwell B

25 HRB
92 HRB

Hardness, Vickers

68 HV
—

Fracture Toughness (K_IC)

—
50 MPa·√m45.5 ksi·√in

Physical

Density and transition temperatures.

Density

8.92 g/cm³0.32 lb/in³
7.53 g/cm³0.27 lb/in³

Melting Point (Solidus)

762°C1,404 °F
1,054°C1,929 °F

Liquidus Temperature

971°C1,780 °F
1,064°C1,947 °F

Thermal

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

Thermal Conductivity

71 W/m·K41 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

18.5 µm/m·K10.3 µin/in·°F
16.2 µm/m·K9 µin/in·°F

Latent Heat of Fusion

170 J/g73.1 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

15 % IACS
8.5 % IACS

Electrical Resistivity

1.15×10⁻⁷ Ω·m4.53 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

55 / 100
80 / 100

Manufacturability

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

Machinability

85 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

200%
50%

Weldability

15 / 100
60 / 100

Formability (cold)

10 / 100
15 / 100

Castability

85 / 100
75 / 100

Brazeability / Solderability

55 / 100
30 / 100

Polishability

55 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
60 MJ/kg25,795 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
4.2 kg CO₂/kg

Typical Recycled Content

75%
40%

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

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

27 kN·m/kg
93 kN·m/kg

Specific Stiffness (E / density)

10.9 MN·m/kg
14.6 MN·m/kg

Modulus of Resilience

98 kJ/m³
409 kJ/m³

Thermal Diffusivity

21.1 mm²/s
13.3 mm²/s

Thermal Shock Resistance Index

10
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 scaleC95500C93500

Manufacturing and finishing

CapabilityC93500C95500
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.

C93500 vs C95500 — frequently asked

Is C95500 stronger than C93500?

Yes. C95500 has a typical yield strength of 300 MPa (43.5 ksi) against 138 MPa (20 ksi) for C93500 — about 117% more. Tensile strength is 700 MPa (102 ksi) vs 241 MPa (35 ksi).

Which is cheaper, C93500 or C95500?

C93500 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 is easier to machine, C93500 or C95500?

C93500. Its machinability rates excellent (85/100) against fair (40/100) for C95500; for welding the order is C95500 first (good, 60/100) then C93500 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C93500 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.