Copper Alloy C87700-M06 vs C87700-M07
Copper Alloy · C87700 temper comparison
C87700-M06 and C87700-M07 are two conditions of the same copper alloy grade, C87700: M06 (as investment cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. C87700-M07 is the stronger of the two: yield strength 215 MPa (31.2 ksi) against 195 MPa (28.3 ksi) for C87700-M06, about 10% more; tensile strength follows at 460 MPa (66.7 ksi) vs 425 MPa (61.6 ksi). In exchange, C87700-M06 is the more ductile: elongation 24% versus 20% for C87700-M07, and C87700-M07 is harder (115 HB vs 102 HB).
C87700-M06Choose it when the part is bent, formed or impact-loaded.
C87700-M07Choose it when strength drives the design.
C87700-M06 vs C87700-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.
Elastic (Young's) Modulus
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: Shear Modulus 39 GPa5.7 Msi · Bulk Modulus 108 GPa15.7 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 8.3 g/cm³0.3 lb/in³ · Melting Point (Solidus) 820°C1,508 °F · Liquidus Temperature 915°C1,679 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 380 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F · Latent Heat of Fusion 210 J/g90.3 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °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) -0.27 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 85 / 100 · Brazeability / Solderability 70 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 50 MJ/kg21,496 BTU/lb · Embodied Carbon (primary production) 3.4 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 75%
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.
C87700-M06 vs C87700-M07 — frequently asked
Is C87700-M07 stronger than C87700-M06?
Yes. C87700-M07 has a typical yield strength of 215 MPa (31.2 ksi) against 195 MPa (28.3 ksi) for C87700-M06 — about 10% more. Tensile strength is 460 MPa (66.7 ksi) vs 425 MPa (61.6 ksi).
Which condition does FabDigit quote by default, M06 or M07?
M01 is the default C87700 condition in the FabDigit quote flow (neither M06 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.
Which is easier to machine, C87700-M06 or C87700-M07?
C87700-M07, by a small margin. Both rate fair for machinability — 50/100 against 45/100 for C87700-M06.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C87700-M06 and C87700-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.