Copper Alloy C85200-M05 vs C85200-M06
Copper Alloy · C85200 temper comparison
C85200-M05 and C85200-M06 are two conditions of the same copper alloy grade, C85200: M05 (as plaster cast) versus M06 (as investment cast). The chemistry is identical, so every difference below comes from the condition. C85200-M05 is the stronger of the two: yield strength 97 MPa (14.1 ksi) against 90 MPa (13.1 ksi) for C85200-M06, about 8% more; tensile strength follows at 276 MPa (40 ksi) vs 262 MPa (38 ksi). C85200-M05 is harder — 50 HB against 45 HB for C85200-M06 — which matters for wear surfaces and threads.
C85200-M05Choose it when strength drives the design, or when surface hardness matters.
C85200-M05 vs C85200-M06: 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)
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
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 · Elongation at Break 30% · Charpy V-Notch Impact (RT) 30 J22.1 ft·lbf
Physical
Density and transition temperatures.
Same in both: Density 8.47 g/cm³0.31 lb/in³ · Melting Point (Solidus) 925°C1,697 °F · Liquidus Temperature 940°C1,724 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 84 W/m·K48.5 BTU/hr·ft·°F · Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 20.3 µm/m·K11.3 µin/in·°F · Latent Heat of Fusion 160 J/g68.8 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °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) -0.25 V · Corrosion Resistance 55 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Same in both: Machinability 80 / 100 · Machinability Rating (AISI 1212 = 100 %) 80% · Weldability 20 / 100 · Formability (cold) 15 / 100 · Castability 85 / 100 · Brazeability / Solderability 90 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 42 MJ/kg18,057 BTU/lb · Embodied Carbon (primary production) 3 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 90%
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.
C85200-M05 vs C85200-M06 — frequently asked
Is C85200-M05 stronger than C85200-M06?
Yes. C85200-M05 has a typical yield strength of 97 MPa (14.1 ksi) against 90 MPa (13.1 ksi) for C85200-M06 — about 8% more. Tensile strength is 276 MPa (40 ksi) vs 262 MPa (38 ksi).
Which condition does FabDigit quote by default, M05 or M06?
M01 is the default C85200 condition in the FabDigit quote flow (neither M05 nor M06). 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 C85200-M05 over C85200-M06?
Pick C85200-M05 when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C85200-M05 and C85200-M06 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.