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Copper Alloy C80300-M02 vs C80300-M07

Copper Alloy · C80300 temper comparison

C80300-M02 and C80300-M07 are two conditions of the same copper alloy grade, C80300: M02 (as centrifugally cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. C80300-M07 is the stronger of the two: yield strength 70 MPa (10.2 ksi) against 65 MPa (9.43 ksi) for C80300-M02, about 8% more; tensile strength follows at 195 MPa (28.3 ksi) vs 185 MPa (26.8 ksi). C80300-M07 is harder — 50 HB against 46 HB for C80300-M02 — which matters for wear surfaces and threads.

C80300-M07Choose it when strength drives the design, or when surface hardness matters.

C80300-M02 vs C80300-M07: properties

C80300-M02C80300-M07

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

185 MPa26.8 ksi
195 MPa28.3 ksi

Yield Strength (0.2% offset)

65 MPa9.4 ksi
70 MPa10.2 ksi

Elongation at Break

42%
40%

Reduction in Area

48%
50%

Shear Strength

125 MPa18.1 ksi
131 MPa19 ksi

Fatigue Strength (Endurance Limit)

66 MPa9.6 ksi
70 MPa10.2 ksi

Charpy V-Notch Impact (RT)

48 J35.4 ft·lbf
50 J36.9 ft·lbf

Hardness, Brinell

46 HB
50 HB

Hardness, Vickers

48 HV
52 HV

Same in both: Elastic (Young's) Modulus 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.94 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,083°C1,981 °F · Liquidus Temperature 1,083°C1,981 °F

Thermal

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

Same in both: Thermal Conductivity 391 W/m·K226 BTU/hr·ft·°F · Specific Heat Capacity 385 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.7 µm/m·K9.8 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 100 % IACS · Electrical Resistivity 1.72×10⁻⁸ Ω·m0.677 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V · Corrosion Resistance 60 / 100

Manufacturability

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

Same in both: Machinability 20 / 100 · Machinability Rating (AISI 1212 = 100 %) 20% · Weldability 45 / 100 · Formability (cold) 85 / 100 · Castability 35 / 100 · Brazeability / Solderability 90 / 100 · Polishability 75 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 57 MJ/kg24,506 BTU/lb · Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 35%

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 scaleC80300

C80300-M02 vs C80300-M07 — frequently asked

Is C80300-M07 stronger than C80300-M02?

Yes. C80300-M07 has a typical yield strength of 70 MPa (10.2 ksi) against 65 MPa (9.43 ksi) for C80300-M02 — about 8% more. Tensile strength is 195 MPa (28.3 ksi) vs 185 MPa (26.8 ksi).

Which condition does FabDigit quote by default, M02 or M07?

M01 is the default C80300 condition in the FabDigit quote flow (neither M02 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.

When should I choose C80300-M02 over C80300-M07?

Pick C80300-M07 when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C80300-M02 and C80300-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.