Copper Alloy C90700-M02 vs C90700-M05
Copper Alloy · C90700 temper comparison
C90700-M02 and C90700-M05 are two conditions of the same copper alloy grade, C90700: M02 (as centrifugally cast) versus M05 (as plaster cast). The chemistry is identical, so every difference below comes from the condition. C90700-M05 is the stronger of the two: yield strength 190 MPa (27.6 ksi) against 175 MPa (25.4 ksi) for C90700-M02, about 9% more. In exchange, C90700-M02 is the more ductile: elongation 11% versus 8% for C90700-M05, and C90700-M05 is harder (95 HB vs 90 HB).
C90700-M02Choose it when the part is bent, formed or impact-loaded.
C90700-M05Choose it when strength drives the design.
C90700-M02 vs C90700-M05: 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.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Shear Modulus 41 GPa5.9 Msi · Bulk Modulus 115 GPa16.7 Msi · Poisson's Ratio 0.34 · Fatigue Strength (Endurance Limit) 110 MPa16 ksi
Physical
Density and transition temperatures.
Same in both: Density 8.77 g/cm³0.32 lb/in³ · Melting Point (Solidus) 830°C1,526 °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 50 W/m·K28.9 BTU/hr·ft·°F · Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18.4 µm/m·K10.2 µin/in·°F · Latent Heat of Fusion 170 J/g73.1 BTU/lb · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.31 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 25 / 100 · Castability 80 / 100 · Brazeability / Solderability 85 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 62 MJ/kg26,655 BTU/lb · Embodied Carbon (primary production) 4.5 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 45%
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.
C90700-M02 vs C90700-M05 — frequently asked
Is C90700-M05 stronger than C90700-M02?
Yes. C90700-M05 has a typical yield strength of 190 MPa (27.6 ksi) against 175 MPa (25.4 ksi) for C90700-M02 — about 9% more. Tensile strength is 340 MPa (49.3 ksi) vs 330 MPa (47.9 ksi).
Which condition does FabDigit quote by default, M02 or M05?
M01 is the default C90700 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 C90700-M02 over C90700-M05?
Pick C90700-M02 when the part is bent, formed or impact-loaded. Pick C90700-M05 when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C90700-M02 and C90700-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.