Copper Alloy C84000-M02 vs C84000-M07
Copper Alloy · C84000 temper comparison
C84000-M02 and C84000-M07 are two conditions of the same copper alloy grade, C84000: M02 (as centrifugally cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. C84000-M07 is the stronger of the two: yield strength 124 MPa (18 ksi) against 105 MPa (15.2 ksi) for C84000-M02, about 18% more; tensile strength follows at 262 MPa (38 ksi) vs 245 MPa (35.5 ksi). C84000-M07 is harder — 62 HB against 58 HB for C84000-M02 — which matters for wear surfaces and threads.
C84000-M07Choose it when strength drives the design, or when surface hardness matters.
C84000-M02 vs C84000-M07: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 90 GPa13.1 Msi · Shear Modulus 34 GPa4.9 Msi · Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 8.55 g/cm³0.31 lb/in³ · Melting Point (Solidus) 845°C1,553 °F · Liquidus Temperature 1,000°C1,832 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 72 W/m·K41.6 BTU/hr·ft·°F · Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 20 µm/m·K11.1 µin/in·°F · Latent Heat of Fusion 170 J/g73.1 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 16.4 % IACS · Electrical Resistivity 1.05×10⁻⁷ Ω·m4.13 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Formability (cold)
Same in both: Machinability 90 / 100 · Machinability Rating (AISI 1212 = 100 %) 90% · Weldability 20 / 100 · Castability 90 / 100 · Brazeability / Solderability 80 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.4 kg CO₂/kg · Embodied Water 220 L/kg26.4 gal/lb · Typical Recycled Content 85%
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.
C84000-M02 vs C84000-M07 — frequently asked
Is C84000-M07 stronger than C84000-M02?
Yes. C84000-M07 has a typical yield strength of 124 MPa (18 ksi) against 105 MPa (15.2 ksi) for C84000-M02 — about 18% more. Tensile strength is 262 MPa (38 ksi) vs 245 MPa (35.5 ksi).
Which condition does FabDigit quote by default, M02 or M07?
M01-F is the default C84000 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 C84000-M02 over C84000-M07?
Pick C84000-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 C84000-M02 and C84000-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.