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Copper Alloy C92900 vs C95500

Copper Alloy · grade comparison

Copper Alloy C92900 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 C92900, about 36% more; tensile strength follows at 700 MPa (102 ksi) vs 345 MPa (50 ksi). In exchange, C92900 is the more ductile: elongation 10% versus 8% for C95500, and C95500 is harder (192 HB vs 105 HB). C95500 is lighter (7.53 g/cm³ vs 8.8 g/cm³ for C92900) and C95500 runs hotter in service (300°C vs 260°C continuous). On the shop floor, C92900 machines more easily (very good vs fair), C95500 welds better (good vs poor), and C92900 sits in a lower cost tier (high, $$$$) than C95500 (specialty, $$$$$).

C92900Choose 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.

C92900 vs C95500: properties

C92900C95500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

107 GPa15.5 Msi
110 GPa16 Msi

Shear Modulus

40 GPa5.8 Msi
42 GPa6.1 Msi

Bulk Modulus

110 GPa16 Msi
102 GPa14.8 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

345 MPa50 ksi
700 MPa102 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
300 MPa43.5 ksi

Elongation at Break

10%
8%

Reduction in Area

12%
—

Compressive Strength

410 MPa59.5 ksi
—

Shear Strength

250 MPa36.3 ksi
425 MPa61.6 ksi

Fatigue Strength (Endurance Limit)

115 MPa16.7 ksi
240 MPa34.8 ksi

Charpy V-Notch Impact (RT)

11 J8.1 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

105 HB
192 HB

Hardness, Rockwell B

60 HRB
92 HRB

Hardness, Vickers

110 HV
—

Fracture Toughness (K_IC)

—
50 MPa·√m45.5 ksi·√in

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

855°C1,571 °F
1,054°C1,929 °F

Liquidus Temperature

1,000°C1,832 °F
1,064°C1,947 °F

Thermal

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

Thermal Conductivity

45 W/m·K26 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 µm/m·K10 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)

260°C500 °F
300°C572 °F

Min Service Temperature

-150°C-238 °F
-100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
8.5 % IACS

Electrical Resistivity

1.72×10⁻⁷ Ω·m6.77 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)

-0.27 V
-0.28 V

Corrosion Resistance

65 / 100
80 / 100

Manufacturability

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

Machinability

75 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

240%
50%

Weldability

20 / 100
60 / 100

Formability (cold)

5 / 100
15 / 100

Castability

80 / 100
75 / 100

Brazeability / Solderability

65 / 100
30 / 100

Polishability

60 / 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

Embodied Water

240 L/kg28.8 gal/lb
250 L/kg30 gal/lb

Typical Recycled Content

60%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

39 kN·m/kg
93 kN·m/kg

Specific Stiffness (E / density)

12.2 MN·m/kg
14.6 MN·m/kg

Modulus of Resilience

226 kJ/m³
409 kJ/m³

Thermal Diffusivity

13.6 mm²/s
13.3 mm²/s

Thermal Shock Resistance Index

8
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 scaleC95500C92900

Manufacturing and finishing

CapabilityC92900C95500
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.

C92900 vs C95500 — frequently asked

Is C95500 stronger than C92900?

Yes. C95500 has a typical yield strength of 300 MPa (43.5 ksi) against 220 MPa (31.9 ksi) for C92900 — about 36% more. Tensile strength is 700 MPa (102 ksi) vs 345 MPa (50 ksi).

Which is cheaper, C92900 or C95500?

C92900 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, C92900 or C95500?

C92900. Its machinability rates very good (75/100) against fair (40/100) for C95500; for welding the order is C95500 first (good, 60/100) then C92900 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C92900 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.