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Copper Alloy C95500 vs CC331G

Copper Alloy · grade comparison

Copper Alloy C95500 and CC331G are both copper alloy grades. C95500 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 200 MPa (29 ksi) for CC331G, about 50% more; tensile strength follows at 700 MPa (102 ksi) vs 550 MPa (79.8 ksi). In exchange, CC331G is the more ductile: elongation 25% versus 8% for C95500, and C95500 is harder (192 HB vs 120 HB). CC331G conducts heat better (59 W/m·K vs 42 W/m·K). On the shop floor, CC331G sits in a lower cost tier (high, $$$$) than C95500 (specialty, $$$$$).

C95500Choose it when strength drives the design.

CC331GChoose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.

C95500 vs CC331G: properties

C95500CC331G

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

42 GPa6.1 Msi
41 GPa5.9 Msi

Bulk Modulus

102 GPa14.8 Msi
115 GPa16.7 Msi

Poisson's Ratio

0.32
0.33

Tensile Strength (Ultimate)

700 MPa102 ksi
550 MPa79.8 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
200 MPa29 ksi

Elongation at Break

8%
25%

Shear Strength

425 MPa61.6 ksi
330 MPa47.9 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
160 MPa23.2 ksi

Fracture Toughness (K_IC)

50 MPa·√m45.5 ksi·√in
—

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
22 J16.2 ft·lbf

Hardness, Brinell

192 HB
120 HB

Hardness, Rockwell B

92 HRB
70 HRB

Compressive Strength

—
240 MPa34.8 ksi

Hardness, Vickers

—
125 HV

Same in both: Elastic (Young's) Modulus 110 GPa16 Msi

Physical

Density and transition temperatures.

Density

7.53 g/cm³0.27 lb/in³
7.64 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,054°C1,929 °F
1,040°C1,904 °F

Liquidus Temperature

1,064°C1,947 °F
1,045°C1,913 °F

Thermal

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

Thermal Conductivity

42 W/m·K24.3 BTU/hr·ft·°F
59 W/m·K34.1 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

210 J/g90.3 BTU/lb
220 J/g94.6 BTU/lb

Min Service Temperature

-100°C-148 °F
-196°C-321 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 16.2 µm/m·K9 µin/in·°F · Max Service Temperature (continuous) 300°C572 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8.5 % IACS
15 % IACS

Electrical Resistivity

2.03×10⁻⁷ Ω·m7.99 µΩ·in
1.15×10⁻⁷ Ω·m4.53 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

80 / 100
72 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V

Manufacturability

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

Machinability

40 / 100
45 / 100

Weldability

60 / 100
65 / 100

Formability (cold)

15 / 100
20 / 100

Castability

75 / 100
78 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 50% · Brazeability / Solderability 30 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

4.2 kg CO₂/kg
3.8 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
400 L/kg47.9 gal/lb

Typical Recycled Content

40%
50%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

93 kN·m/kg
72 kN·m/kg

Specific Stiffness (E / density)

14.6 MN·m/kg
14.4 MN·m/kg

Modulus of Resilience

409 kJ/m³
182 kJ/m³

Thermal Diffusivity

13.3 mm²/s
20.6 mm²/s

Thermal Shock Resistance Index

16
18

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 scaleC95500CC331G

Manufacturing and finishing

CapabilityC95500CC331G
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.

C95500 vs CC331G — frequently asked

Is C95500 stronger than CC331G?

Yes. C95500 has a typical yield strength of 300 MPa (43.5 ksi) against 200 MPa (29 ksi) for CC331G — about 50% more. Tensile strength is 700 MPa (102 ksi) vs 550 MPa (79.8 ksi).

Which is cheaper, C95500 or CC331G?

CC331G 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, C95500 or CC331G?

CC331G, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for C95500; for welding the order is CC331G first (good, 65/100) then C95500 (good, 60/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C95500 and CC331G 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.