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Copper Alloy C84800 vs C93600

Copper Alloy · grade comparison

Copper Alloy C84800 and C93600 are both copper alloy grades. C84800 is the stronger of the two: yield strength 124 MPa (18 ksi) against 110 MPa (16 ksi) for C93600, about 13% more; tensile strength follows at 262 MPa (38 ksi) vs 207 MPa (30 ksi). C84800 is the more ductile: elongation 35% versus 15% for C93600, and C93600 is harder (60 HB vs 55 HB). C84800 is lighter (8.55 g/cm³ vs 8.94 g/cm³ for C93600) and C84800 is stiffer (86 GPa vs 76 GPa). On the shop floor, C84800 welds better (poor vs not recommended).

C84800Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

C93600Choose it when the part sees heat.

C84800 vs C93600: properties

C84800C93600

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

86 GPa12.5 Msi
76 GPa11 Msi

Shear Modulus

32 GPa4.6 Msi
28 GPa4.1 Msi

Tensile Strength (Ultimate)

262 MPa38 ksi
207 MPa30 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
110 MPa16 ksi

Elongation at Break

35%
15%

Shear Strength

190 MPa27.6 ksi
150 MPa21.8 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
70 MPa10.2 ksi

Hardness, Brinell

55 HB
60 HB

Reduction in Area

—
12%

Charpy V-Notch Impact (RT)

—
8 J5.9 ft·lbf

Hardness, Vickers

—
63 HV

Same in both: Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

8.55 g/cm³0.31 lb/in³
8.94 g/cm³0.32 lb/in³

Melting Point (Solidus)

843°C1,549 °F
762°C1,404 °F

Liquidus Temperature

1,010°C1,850 °F
954°C1,749 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
47 W/m·K27.2 BTU/hr·ft·°F

Specific Heat Capacity

377 J/kg·K0.09 BTU/lb·°F
251 J/kg·K0.06 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

170 J/g73.1 BTU/lb
165 J/g70.9 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
230°C446 °F

Min Service Temperature

-196°C-321 °F
-100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

16 % IACS
11 % IACS

Electrical Resistivity

1.08×10⁻⁷ Ω·m4.25 µΩ·in
1.57×10⁻⁷ Ω·m6.18 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.31 V

Corrosion Resistance

58 / 100
55 / 100

Manufacturability

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

Machinability

88 / 100
85 / 100

Weldability

20 / 100
10 / 100

Castability

90 / 100
85 / 100

Brazeability / Solderability

60 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

—
80%

Formability (cold)

—
10 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

45 MJ/kg19,347 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

3 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
320 L/kg38.3 gal/lb

Typical Recycled Content

85%
75%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

31 kN·m/kg
23 kN·m/kg

Specific Stiffness (E / density)

10.1 MN·m/kg
8.5 MN·m/kg

Modulus of Resilience

89 kJ/m³
80 kJ/m³

Thermal Diffusivity

22.3 mm²/s
20.9 mm²/s

Thermal Shock Resistance Index

12
7

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 scaleC84800C93600

Manufacturing and finishing

CapabilityC84800C93600
Default conditionAs CastAs Cast
Relative cost$$$$$ Specialty$$$$$ Specialty
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining. Both take the same 9 finishes: Chrome Plating, Copper Plating, Electroless Nickel (EN), Electropolishing, Gold Plating, Nickel Plating, Painting, Silver Plating, Tin Plating.

C84800 vs C93600 — frequently asked

Is C84800 stronger than C93600?

Yes. C84800 has a typical yield strength of 124 MPa (18 ksi) against 110 MPa (16 ksi) for C93600 — about 13% more. Tensile strength is 262 MPa (38 ksi) vs 207 MPa (30 ksi).

Which is cheaper, C84800 or C93600?

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

Which welds better, C84800 or C93600?

C84800. Its weldability rates poor (20/100) against not recommended (10/100) for C93600.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C84800 and C93600 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.