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Copper Alloy C26000 vs C42200

Copper Alloy · grade comparison

Copper Alloy C26000 and C42200 are both copper alloy grades. C42200 is the stronger of the two: yield strength 359 MPa (52.1 ksi) against 105 MPa (15.2 ksi) for C26000, about 3.4 times as much; tensile strength follows at 414 MPa (60 ksi) vs 325 MPa (47.1 ksi). In exchange, C26000 is the more ductile: elongation 62% versus 12% for C42200, and C42200 is harder (130 HB vs 55 HB). C26000 runs hotter in service (200°C vs 150°C continuous).

C26000Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

C42200Choose it when strength drives the design.

C26000 vs C42200: properties

C26000C42200

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Poisson's Ratio

0.35
0.34

Tensile Strength (Ultimate)

325 MPa47.1 ksi
414 MPa60 ksi

Yield Strength (0.2% offset)

105 MPa15.2 ksi
359 MPa52.1 ksi

Elongation at Break

62%
12%

Shear Strength

234 MPa33.9 ksi
285 MPa41.3 ksi

Fatigue Strength (Endurance Limit)

97 MPa14.1 ksi
150 MPa21.8 ksi

Hardness, Brinell

55 HB
130 HB

Hardness, Vickers

60 HV
140 HV

Hardness, Rockwell B

—
70 HRB

Same in both: Elastic (Young's) Modulus 110 GPa16 Msi · Shear Modulus 41 GPa5.9 Msi · Bulk Modulus 115 GPa16.7 Msi

Physical

Density and transition temperatures.

Density

8.53 g/cm³0.31 lb/in³
8.78 g/cm³0.32 lb/in³

Melting Point (Solidus)

915°C1,679 °F
1,004°C1,839 °F

Liquidus Temperature

955°C1,751 °F
1,027°C1,881 °F

Thermal

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

Thermal Conductivity

121 W/m·K69.9 BTU/hr·ft·°F
113 W/m·K65.3 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
18.4 µm/m·K10.2 µin/in·°F

Latent Heat of Fusion

165 J/g70.9 BTU/lb
200 J/g86 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
150°C302 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 28 % IACS · Electrical Resistivity 6.2×10⁻⁸ Ω·m2.44 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

50 / 100
65 / 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.

Weldability

40 / 100
45 / 100

Formability (cold)

98 / 100
65 / 100

Castability

25 / 100
30 / 100

Polishability

85 / 100
80 / 100

Same in both: Machinability 30 / 100 · Machinability Rating (AISI 1212 = 100 %) 30% · Brazeability / Solderability 90 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

3.5 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
280 L/kg33.6 gal/lb

Typical Recycled Content

45%
40%

Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

38 kN·m/kg
47 kN·m/kg

Specific Stiffness (E / density)

12.9 MN·m/kg
12.5 MN·m/kg

Modulus of Resilience

50 kJ/m³
586 kJ/m³

Thermal Diffusivity

37.8 mm²/s
34.1 mm²/s

Thermal Shock Resistance Index

18
23

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 scaleC26000C42200

Manufacturing and finishing

CapabilityC26000C42200
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 C42200 — frequently asked

Is C42200 stronger than C26000?

Yes. C42200 has a typical yield strength of 359 MPa (52.1 ksi) against 105 MPa (15.2 ksi) for C26000 — about 3.4 times as much. Tensile strength is 414 MPa (60 ksi) vs 325 MPa (47.1 ksi).

Which is cheaper, C26000 or C42200?

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 welds better, C26000 or C42200?

C42200. Its weldability rates fair (45/100) against fair (40/100) for C26000.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C26000 and C42200 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.