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Copper Alloy C96700 vs CC383H

Copper Alloy · grade comparison

Copper Alloy C96700 and CC383H are both copper alloy grades. C96700 is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 290 MPa (42.1 ksi) for CC383H, about 114% more; tensile strength follows at 760 MPa (110 ksi) vs 480 MPa (69.6 ksi). In exchange, CC383H is the more ductile: elongation 22% versus 5% for C96700, and C96700 is harder (330 HB vs 140 HB). C96700 conducts heat better (33 W/m·K vs 29 W/m·K). On the shop floor, CC383H welds better (very good vs fair).

C96700Choose it when strength drives the design.

CC383HChoose it when the part is bent, formed or impact-loaded, or when it will be welded.

C96700 vs CC383H: properties

C96700CC383H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

152 GPa22 Msi
150 GPa21.8 Msi

Bulk Modulus

133 GPa19.3 Msi
132 GPa19.1 Msi

Tensile Strength (Ultimate)

760 MPa110 ksi
480 MPa69.6 ksi

Yield Strength (0.2% offset)

620 MPa89.9 ksi
290 MPa42.1 ksi

Elongation at Break

5%
22%

Compressive Strength

700 MPa102 ksi
—

Shear Strength

460 MPa66.7 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

275 MPa39.9 ksi
150 MPa21.8 ksi

Charpy V-Notch Impact (RT)

12 J8.9 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

330 HB
140 HB

Hardness, Rockwell C

34 HRC
—

Reduction in Area

—
25%

Hardness, Rockwell B

—
77 HRB

Hardness, Vickers

—
145 HV

Same in both: Shear Modulus 57 GPa8.3 Msi · Poisson's Ratio 0.31

Physical

Density and transition temperatures.

Density

8.8 g/cm³0.32 lb/in³
8.9 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,080°C1,976 °F
1,170°C2,138 °F

Liquidus Temperature

1,160°C2,120 °F
1,240°C2,264 °F

Thermal

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

Thermal Conductivity

33 W/m·K19.1 BTU/hr·ft·°F
29 W/m·K16.8 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

16 µm/m·K8.9 µin/in·°F
15.8 µm/m·K8.8 µin/in·°F

Max Service Temperature (continuous)

315°C599 °F
300°C572 °F

Min Service Temperature

-200°C-328 °F
-196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

6 % IACS
4.6 % IACS

Electrical Resistivity

2.9×10⁻⁷ Ω·m11.4 µΩ·in
3.75×10⁻⁷ Ω·m14.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.27 V

Corrosion Resistance

80 / 100
78 / 100

Manufacturability

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

Machinability

25 / 100
32 / 100

Weldability

35 / 100
80 / 100

Castability

65 / 100
62 / 100

Brazeability / Solderability

55 / 100
70 / 100

Polishability

75 / 100
70 / 100

Formability (cold)

—
25 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 20%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

130 MJ/kg55,890 BTU/lb
90 MJ/kg38,693 BTU/lb

Embodied Carbon (primary production)

8.5 kg CO₂/kg
5.6 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

25%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

86 kN·m/kg
54 kN·m/kg

Specific Stiffness (E / density)

17.3 MN·m/kg
16.9 MN·m/kg

Modulus of Resilience

1,264 kJ/m³
280 kJ/m³

Thermal Diffusivity

9.9 mm²/s
8.6 mm²/s

Thermal Shock Resistance Index

10
6

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 scaleCC383HC96700

Manufacturing and finishing

CapabilityC96700CC383H
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.

C96700 vs CC383H — frequently asked

Is C96700 stronger than CC383H?

Yes. C96700 has a typical yield strength of 620 MPa (89.9 ksi) against 290 MPa (42.1 ksi) for CC383H — about 114% more. Tensile strength is 760 MPa (110 ksi) vs 480 MPa (69.6 ksi).

Which is cheaper, C96700 or CC383H?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, C96700 or CC383H?

CC383H, by a small margin. Both rate poor for machinability — 32/100 against 25/100 for C96700; for welding the order is CC383H first (very good, 80/100) then C96700 (fair, 35/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C96700 and CC383H 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.