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Copper Alloy C84400 vs C95410

Copper Alloy · grade comparison

Copper Alloy C84400 and C95410 are both copper alloy grades. C95410 is the stronger of the two: yield strength 241 MPa (35 ksi) against 110 MPa (16 ksi) for C84400, about 119% more; tensile strength follows at 586 MPa (85 ksi) vs 234 MPa (33.9 ksi). In exchange, C84400 is the more ductile: elongation 26% versus 13% for C95410, and C95410 is harder (170 HB vs 55 HB). C95410 is lighter (7.45 g/cm³ vs 8.8 g/cm³ for C84400) and C95410 is stiffer (110 GPa vs 95 GPa). On the shop floor, C84400 machines more easily (excellent vs good), C95410 welds better (good vs poor), and C95410 sits in a lower cost tier (high, $$$$) than C84400 (specialty, $$$$$).

C84400Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

C95410Choose it when strength drives the design, or when weight is the constraint.

C84400 vs C95410: properties

C84400C95410

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

95 GPa13.8 Msi
110 GPa16 Msi

Shear Modulus

36 GPa5.2 Msi
42 GPa6.1 Msi

Bulk Modulus

115 GPa16.7 Msi
105 GPa15.2 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

234 MPa33.9 ksi
586 MPa85 ksi

Yield Strength (0.2% offset)

110 MPa16 ksi
241 MPa35 ksi

Elongation at Break

26%
13%

Compressive Strength

260 MPa37.7 ksi
250 MPa36.3 ksi

Shear Strength

165 MPa23.9 ksi
345 MPa50 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
200 MPa29 ksi

Hardness, Brinell

55 HB
170 HB

Hardness, Rockwell B

25 HRB
88 HRB

Reduction in Area

—
15%

Fracture Toughness (K_IC)

—
45 MPa·√m41 ksi·√in

Hardness, Vickers

—
178 HV

Same in both: Charpy V-Notch Impact (RT) 20 J14.8 ft·lbf

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

843°C1,549 °F
1,038°C1,900 °F

Liquidus Temperature

954°C1,749 °F
1,060°C1,940 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
58.6 W/m·K33.9 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
220 J/g94.6 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
300°C572 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

16.4 % IACS
13 % IACS

Electrical Resistivity

1.05×10⁻⁷ Ω·m4.13 µΩ·in
1.33×10⁻⁷ Ω·m5.24 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.25 V

Corrosion Resistance

58 / 100
76 / 100

Manufacturability

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

Machinability

90 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

90%
60%

Weldability

20 / 100
65 / 100

Formability (cold)

10 / 100
20 / 100

Castability

90 / 100
75 / 100

Brazeability / Solderability

80 / 100
35 / 100

Polishability

60 / 100
65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

42 MJ/kg18,057 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

3.2 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

85%
45%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

27 kN·m/kg
79 kN·m/kg

Specific Stiffness (E / density)

10.8 MN·m/kg
14.8 MN·m/kg

Modulus of Resilience

64 kJ/m³
264 kJ/m³

Thermal Diffusivity

21.7 mm²/s
18.8 mm²/s

Thermal Shock Resistance Index

10
19

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 scaleC84400C95410

Manufacturing and finishing

CapabilityC84400C95410
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.

C84400 vs C95410 — frequently asked

Is C95410 stronger than C84400?

Yes. C95410 has a typical yield strength of 241 MPa (35 ksi) against 110 MPa (16 ksi) for C84400 — about 119% more. Tensile strength is 586 MPa (85 ksi) vs 234 MPa (33.9 ksi).

Which is cheaper, C84400 or C95410?

C95410 is the lower-cost material: it sits in the high tier ($$$$) while C84400 is specialty ($$$$$). 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, C84400 or C95410?

C84400. Its machinability rates excellent (90/100) against good (55/100) for C95410; for welding the order is C95410 first (good, 65/100) then C84400 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C84400 and C95410 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.