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Copper Alloy C86500-M05 vs C86500-M07

Copper Alloy · C86500 temper comparison

C86500-M05 and C86500-M07 are two conditions of the same copper alloy grade, C86500: M05 (as plaster cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. Both yield at about 215 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (as plaster cast versus as continuous cast). For most parts the choice follows the drawing's specified condition; ask for the one your standard calls out.

C86500-M05 vs C86500-M07: properties

C86500-M05C86500-M07

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

520 MPa75.4 ksi
500 MPa72.5 ksi

Yield Strength (0.2% offset)

215 MPa31.2 ksi
205 MPa29.7 ksi

Compressive Strength

225 MPa32.6 ksi
215 MPa31.2 ksi

Shear Strength

350 MPa50.8 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

165 MPa23.9 ksi
155 MPa22.5 ksi

Hardness, Brinell

115 HB
110 HB

Hardness, Rockwell B

68 HRB
65 HRB

Hardness, Vickers

120 HV
115 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 · Elongation at Break 25% · Reduction in Area 22% · Charpy V-Notch Impact (RT) 25 J18.4 ft·lbf

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-M05 vs C86500-M07 — frequently asked

What is the difference between C86500-M05 and C86500-M07?

C86500-M05 and C86500-M07 are two conditions of the same copper alloy grade, C86500: M05 (as plaster cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. Both yield at about 215 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (as plaster cast versus as continuous cast).

Which condition does FabDigit quote by default, M05 or M07?

M01 is the default C86500 condition in the FabDigit quote flow (neither M05 nor M07). 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.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C86500-M05 and C86500-M07 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.