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Copper Alloy C86500-M02 vs C86500-M05

Copper Alloy · C86500 temper comparison

C86500-M02 and C86500-M05 are two conditions of the same copper alloy grade, C86500: M02 (as centrifugally cast) versus M05 (as plaster cast). The chemistry is identical, so every difference below comes from the condition. Both yield at about 205 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (as centrifugally cast versus as plaster cast). C86500-M02 is the more ductile: elongation 28% versus 25% for C86500-M05.

C86500-M02Choose it when the part is bent, formed or impact-loaded.

C86500-M02 vs C86500-M05: properties

C86500-M02C86500-M05

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

510 MPa74 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

205 MPa29.7 ksi
215 MPa31.2 ksi

Elongation at Break

28%
25%

Reduction in Area

25%
22%

Compressive Strength

215 MPa31.2 ksi
225 MPa32.6 ksi

Shear Strength

345 MPa50 ksi
350 MPa50.8 ksi

Fatigue Strength (Endurance Limit)

160 MPa23.2 ksi
165 MPa23.9 ksi

Charpy V-Notch Impact (RT)

28 J20.7 ft·lbf
25 J18.4 ft·lbf

Hardness, Brinell

110 HB
115 HB

Hardness, Rockwell B

65 HRB
68 HRB

Hardness, Vickers

115 HV
120 HV

Same in both: Elastic (Young's) Modulus 105 GPa15.2 Msi · Shear Modulus 39 GPa5.7 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.3 g/cm³0.3 lb/in³ · Melting Point (Solidus) 862°C1,584 °F · Liquidus Temperature 880°C1,616 °F

Thermal

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

Same in both: Thermal Conductivity 87 W/m·K50.3 BTU/hr·ft·°F · Specific Heat Capacity 376 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 21.6 µm/m·K12 µin/in·°F · Latent Heat of Fusion 175 J/g75.2 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 22 % IACS · Electrical Resistivity 7.8×10⁻⁸ Ω·m3.07 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.29 V · Corrosion Resistance 58 / 100

Manufacturability

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

Same in both: Machinability 30 / 100 · Machinability Rating (AISI 1212 = 100 %) 26% · Weldability 25 / 100 · Formability (cold) 15 / 100 · Castability 80 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 50 MJ/kg21,496 BTU/lb · Embodied Carbon (primary production) 3.2 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 80%

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 scaleC86500

C86500-M02 vs C86500-M05 — frequently asked

What is the difference between C86500-M02 and C86500-M05?

C86500-M02 and C86500-M05 are two conditions of the same copper alloy grade, C86500: M02 (as centrifugally cast) versus M05 (as plaster cast). The chemistry is identical, so every difference below comes from the condition. Both yield at about 205 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (as centrifugally cast versus as plaster cast).

Which condition does FabDigit quote by default, M02 or M05?

M01 is the default C86500 condition in the FabDigit quote flow (neither M02 nor M05). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

When should I choose C86500-M02 over C86500-M05?

Pick C86500-M02 when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C86500-M02 and C86500-M05 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.