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Copper Alloy C26000 vs C48200

Copper Alloy · grade comparison

Copper Alloy C26000 and C48200 are both copper alloy grades. C48200 is the stronger of the two: yield strength 172 MPa (24.9 ksi) against 105 MPa (15.2 ksi) for C26000, about 64% more; tensile strength follows at 379 MPa (55 ksi) vs 325 MPa (47.1 ksi). In exchange, C26000 is the more ductile: elongation 62% versus 40% for C48200, and C48200 is harder (100 HB vs 55 HB). C26000 is stiffer (110 GPa vs 100 GPa). On the shop floor, C48200 machines more easily (very good vs poor) and C26000 welds better (fair vs poor).

C26000Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

C48200Choose it when strength drives the design, or when the part is machined in volume.

C26000 vs C48200: properties

C26000C48200

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
100 GPa14.5 Msi

Shear Modulus

41 GPa5.9 Msi
37 GPa5.4 Msi

Bulk Modulus

115 GPa16.7 Msi
110 GPa16 Msi

Poisson's Ratio

0.35
0.34

Tensile Strength (Ultimate)

325 MPa47.1 ksi
379 MPa55 ksi

Yield Strength (0.2% offset)

105 MPa15.2 ksi
172 MPa24.9 ksi

Elongation at Break

62%
40%

Shear Strength

234 MPa33.9 ksi
275 MPa39.9 ksi

Fatigue Strength (Endurance Limit)

97 MPa14.1 ksi
138 MPa20 ksi

Hardness, Brinell

55 HB
100 HB

Hardness, Vickers

60 HV
105 HV

Reduction in Area

—
45%

Charpy V-Notch Impact (RT)

—
30 J22.1 ft·lbf

Hardness, Rockwell B

—
55 HRB

Physical

Density and transition temperatures.

Density

8.53 g/cm³0.31 lb/in³
8.44 g/cm³0.3 lb/in³

Melting Point (Solidus)

915°C1,679 °F
885°C1,625 °F

Liquidus Temperature

955°C1,751 °F
900°C1,652 °F

Thermal

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

Thermal Conductivity

121 W/m·K69.9 BTU/hr·ft·°F
116 W/m·K67 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

19.9 µm/m·K11.1 µin/in·°F
21.2 µm/m·K11.8 µin/in·°F

Latent Heat of Fusion

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

Same in both: Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

28 % IACS
26 % IACS

Electrical Resistivity

6.2×10⁻⁸ Ω·m2.44 µΩ·in
6.6×10⁻⁸ Ω·m2.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.3 V

Corrosion Resistance

50 / 100
62 / 100

Manufacturability

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

Machinability

30 / 100
70 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
70%

Weldability

40 / 100
25 / 100

Formability (cold)

98 / 100
45 / 100

Castability

25 / 100
45 / 100

Brazeability / Solderability

90 / 100
85 / 100

Polishability

85 / 100
80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
53 MJ/kg22,786 BTU/lb

Embodied Carbon (primary production)

3.5 kg CO₂/kg
3.2 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

45%
60%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

38 kN·m/kg
45 kN·m/kg

Specific Stiffness (E / density)

12.9 MN·m/kg
11.8 MN·m/kg

Modulus of Resilience

50 kJ/m³
148 kJ/m³

Thermal Diffusivity

37.8 mm²/s
36.5 mm²/s

Thermal Shock Resistance Index

18
21

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 scaleC26000C48200

Manufacturing and finishing

CapabilityC26000C48200
CNC machiningYes—
Sheet metalYes—
Default conditionO—
Relative cost$$$$ High$$$$ 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.

C26000 vs C48200 — frequently asked

Is C48200 stronger than C26000?

Yes. C48200 has a typical yield strength of 172 MPa (24.9 ksi) against 105 MPa (15.2 ksi) for C26000 — about 64% more. Tensile strength is 379 MPa (55 ksi) vs 325 MPa (47.1 ksi).

Which is cheaper, C26000 or C48200?

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, C26000 or C48200?

C48200. Its machinability rates very good (70/100) against poor (30/100) for C26000; for welding the order is C26000 first (fair, 40/100) then C48200 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C26000 and C48200 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.