Copper Alloy C86700-M01 vs C86700-M04
Copper Alloy · C86700 temper comparison
C86700-M01 and C86700-M04 are two conditions of the same copper alloy grade, C86700: M01 (as sand cast) versus M04 (as pressure die cast). The chemistry is identical, so every difference below comes from the condition. C86700-M04 is the stronger of the two: yield strength 345 MPa (50 ksi) against 310 MPa (45 ksi) for C86700-M01, about 11% more; tensile strength follows at 655 MPa (95 ksi) vs 620 MPa (89.9 ksi). In exchange, C86700-M01 is the more ductile: elongation 18% versus 16% for C86700-M04, and C86700-M04 is harder (180 HB vs 170 HB).
C86700-M01Choose it when the part is bent, formed or impact-loaded.
C86700-M04Choose it when strength drives the design.
C86700-M01 vs C86700-M04: 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 103 GPa14.9 Msi · Shear Modulus 39 GPa5.7 Msi · Bulk Modulus 110 GPa16 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) 862°C1,584 °F · Liquidus Temperature 880°C1,616 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 36 W/m·K20.8 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 175 J/g75.2 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -100°C-148 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 11 % IACS · Electrical Resistivity 1.57×10⁻⁷ Ω·m6.18 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V · Corrosion Resistance 52 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Same in both: Weldability 25 / 100 · Formability (cold) 15 / 100 · Castability 85 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 45 MJ/kg19,347 BTU/lb · Embodied Carbon (primary production) 3.4 kg CO₂/kg · Embodied Water 320 L/kg38.3 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.
C86700-M01 vs C86700-M04 — frequently asked
Is C86700-M04 stronger than C86700-M01?
Yes. C86700-M04 has a typical yield strength of 345 MPa (50 ksi) against 310 MPa (45 ksi) for C86700-M01 — about 11% more. Tensile strength is 655 MPa (95 ksi) vs 620 MPa (89.9 ksi).
Which condition does FabDigit quote by default, M01 or M04?
M01 is the default C86700 condition in the FabDigit quote flow. 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 C86700-M01 over C86700-M04?
Pick C86700-M01 when the part is bent, formed or impact-loaded. Pick C86700-M04 when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C86700-M01 and C86700-M04 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.