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Copper Alloy C84800 vs C92600

Copper Alloy · grade comparison

Copper Alloy C84800 and C92600 are both copper alloy grades. C92600 is the stronger of the two: yield strength 138 MPa (20 ksi) against 124 MPa (18 ksi) for C84800, about 11% more; tensile strength follows at 303 MPa (43.9 ksi) vs 262 MPa (38 ksi). In exchange, C84800 is the more ductile: elongation 35% versus 30% for C92600, and C92600 is harder (72 HB vs 55 HB). C92600 is stiffer (100 GPa vs 86 GPa) and C92600 runs hotter in service (260°C vs 200°C continuous). On the shop floor, C84800 machines more easily (excellent vs very good), C92600 welds better (30 vs 20 out of 100), and C92600 sits in a lower cost tier (high, $$$$) than C84800 (specialty, $$$$$).

C84800Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

C92600Choose it when strength drives the design, or when the part sees heat.

C84800 vs C92600: properties

C84800C92600

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

86 GPa12.5 Msi
100 GPa14.5 Msi

Shear Modulus

32 GPa4.6 Msi
38 GPa5.5 Msi

Tensile Strength (Ultimate)

262 MPa38 ksi
303 MPa43.9 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
138 MPa20 ksi

Elongation at Break

35%
30%

Shear Strength

190 MPa27.6 ksi
210 MPa30.5 ksi

Fatigue Strength (Endurance Limit)

76 MPa11 ksi
105 MPa15.2 ksi

Hardness, Brinell

55 HB
72 HB

Compressive Strength

—
240 MPa34.8 ksi

Charpy V-Notch Impact (RT)

—
14 J10.3 ft·lbf

Hardness, Rockwell B

—
30 HRB

Hardness, Vickers

—
76 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
8.8 g/cm³0.32 lb/in³

Melting Point (Solidus)

843°C1,549 °F
854°C1,569 °F

Liquidus Temperature

1,010°C1,850 °F
999°C1,830 °F

Thermal

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

Thermal Conductivity

72 W/m·K41.6 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Max Service Temperature (continuous)

200°C392 °F
260°C500 °F

Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F · Latent Heat of Fusion 170 J/g73.1 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

16 % IACS
11.5 % IACS

Electrical Resistivity

1.08×10⁻⁷ Ω·m4.25 µΩ·in
1.5×10⁻⁷ Ω·m5.91 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.28 V

Corrosion Resistance

58 / 100
66 / 100

Manufacturability

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

Machinability

88 / 100
70 / 100

Weldability

20 / 100
30 / 100

Castability

90 / 100
80 / 100

Brazeability / Solderability

60 / 100
80 / 100

Polishability

55 / 100
65 / 100

Machinability Rating (AISI 1212 = 100 %)

—
70%

Formability (cold)

—
15 / 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

Typical Recycled Content

85%
70%

Same in both: Embodied Water 250 L/kg30 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

31 kN·m/kg
34 kN·m/kg

Specific Stiffness (E / density)

10.1 MN·m/kg
11.4 MN·m/kg

Modulus of Resilience

89 kJ/m³
95 kJ/m³

Thermal Diffusivity

22.3 mm²/s
13.6 mm²/s

Thermal Shock Resistance Index

12
8

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 scaleC84800C92600

Manufacturing and finishing

CapabilityC84800C92600
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.

C84800 vs C92600 — frequently asked

Is C92600 stronger than C84800?

Yes. C92600 has a typical yield strength of 138 MPa (20 ksi) against 124 MPa (18 ksi) for C84800 — about 11% more. Tensile strength is 303 MPa (43.9 ksi) vs 262 MPa (38 ksi).

Which is cheaper, C84800 or C92600?

C92600 is the lower-cost material: it sits in the high tier ($$$$) while C84800 is specialty ($$$$$). 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, C84800 or C92600?

C84800. Its machinability rates excellent (88/100) against very good (70/100) for C92600; for welding the order is C92600 first (poor, 30/100) then C84800 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C84800 and C92600 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.