FabDigitFabDigit

Copper Alloy C87400-M01 vs C87400-M06

Copper Alloy · C87400 temper comparison

C87400-M01 and C87400-M06 are two conditions of the same copper alloy grade, C87400: M01 (as sand cast) versus M06 (as investment cast). The chemistry is identical, so every difference below comes from the condition. C87400-M06 is the stronger of the two: yield strength 190 MPa (27.6 ksi) against 165 MPa (23.9 ksi) for C87400-M01, about 15% more; tensile strength follows at 400 MPa (58 ksi) vs 379 MPa (55 ksi). In exchange, C87400-M01 is the more ductile: elongation 30% versus 24% for C87400-M06, and C87400-M06 is harder (78 HB vs 70 HB).

C87400-M01Choose it when the part is bent, formed or impact-loaded.

C87400-M06Choose it when strength drives the design.

C87400-M01 vs C87400-M06: properties

C87400-M01C87400-M06

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

379 MPa55 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

165 MPa23.9 ksi
190 MPa27.6 ksi

Elongation at Break

30%
24%

Reduction in Area

25%
20%

Shear Strength

255 MPa37 ksi
275 MPa39.9 ksi

Fatigue Strength (Endurance Limit)

110 MPa16 ksi
120 MPa17.4 ksi

Charpy V-Notch Impact (RT)

30 J22.1 ft·lbf
26 J19.2 ft·lbf

Hardness, Brinell

70 HB
78 HB

Hardness, Rockwell B

30 HRB
38 HRB

Hardness, Vickers

74 HV
82 HV

Same in both: Elastic (Young's) Modulus 100 GPa14.5 Msi · Shear Modulus 37 GPa5.4 Msi · Bulk Modulus 104 GPa15.1 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) 821°C1,510 °F · Liquidus Temperature 917°C1,683 °F

Thermal

How each material carries heat and how hot it can run.

Same in both: Thermal Conductivity 28.5 W/m·K16.5 BTU/hr·ft·°F · Specific Heat Capacity 376 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 19.6 µm/m·K10.9 µin/in·°F · Latent Heat of Fusion 195 J/g83.8 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 6.7 % IACS · Electrical Resistivity 2.57×10⁻⁷ Ω·m10.1 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

70 / 100
72 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.26 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

50 / 100
52 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 50% · Weldability 75 / 100 · Formability (cold) 25 / 100 · Castability 85 / 100 · Brazeability / Solderability 60 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 50 MJ/kg21,496 BTU/lb · Embodied Carbon (primary production) 3.5 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.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC87400

C87400-M01 vs C87400-M06 — frequently asked

Is C87400-M06 stronger than C87400-M01?

Yes. C87400-M06 has a typical yield strength of 190 MPa (27.6 ksi) against 165 MPa (23.9 ksi) for C87400-M01 — about 15% more. Tensile strength is 400 MPa (58 ksi) vs 379 MPa (55 ksi).

Which condition does FabDigit quote by default, M01 or M06?

M01 is the default C87400 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 C87400-M01 over C87400-M06?

Pick C87400-M01 when the part is bent, formed or impact-loaded. Pick C87400-M06 when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C87400-M01 and C87400-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.