Copper Alloy C99400-M01 vs C99400-M05
Copper Alloy · C99400 temper comparison
C99400-M01 and C99400-M05 are two conditions of the same copper alloy grade, C99400: M01 (as sand cast) versus M05 (as plaster cast). The chemistry is identical, so every difference below comes from the condition. Both yield at about 221 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (as sand cast versus as plaster cast). C99400-M01 is the more ductile: elongation 22% versus 18% for C99400-M05, and C99400-M05 is harder (78 HRB vs 72 HRB). C99400-M05 conducts heat better (42 W/m·K vs 35 W/m·K).
C99400-M01Choose it when the part is bent, formed or impact-loaded.
C99400-M01 vs C99400-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.
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 120 GPa17.4 Msi
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Latent Heat of Fusion 205 J/g88.1 BTU/lb
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 8 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Same in both: Castability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Water 280 L/kg33.6 gal/lb
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.
C99400-M01 vs C99400-M05 — frequently asked
What is the difference between C99400-M01 and C99400-M05?
C99400-M01 and C99400-M05 are two conditions of the same copper alloy grade, C99400: M01 (as sand cast) versus M05 (as plaster cast). The chemistry is identical, so every difference below comes from the condition. Both yield at about 221 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (as sand cast versus as plaster cast).
Which condition does FabDigit quote by default, M01 or M05?
F is the default C99400 condition in the FabDigit quote flow (neither M01 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.
Which welds better, C99400-M01 or C99400-M05?
C99400-M01. Its weldability rates fair (45/100) against fair (40/100) for C99400-M05.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C99400-M01 and C99400-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.