Copper Alloy C99300-M01 vs C99300-M02
Copper Alloy · C99300 temper comparison
C99300-M01 and C99300-M02 are two conditions of the same copper alloy grade, C99300: M01 (as sand cast) versus M02 (as centrifugally cast). The chemistry is identical, so every difference below comes from the condition. C99300-M02 is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 420 MPa (60.9 ksi) for C99300-M01, about 7% more; tensile strength follows at 690 MPa (100 ksi) vs 655 MPa (95 ksi). C99300-M02 is the more ductile: elongation 3% versus 2.5% for C99300-M01.
C99300-M02Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
C99300-M01 vs C99300-M02: 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, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 120 GPa17.4 Msi · Shear Modulus 45 GPa6.5 Msi · Bulk Modulus 120 GPa17.4 Msi · Poisson's Ratio 0.32
Physical
Density and transition temperatures.
Same in both: Density 7.5 g/cm³0.27 lb/in³ · Melting Point (Solidus) 1,075°C1,967 °F · Liquidus Temperature 1,100°C2,012 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 30 W/m·K17.3 BTU/hr·ft·°F · Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16 µm/m·K8.9 µin/in·°F · Latent Heat of Fusion 220 J/g94.6 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 6 % IACS · Electrical Resistivity 2.9×10⁻⁷ Ω·m11.4 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
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.
Same in both: Machinability 25 / 100 · Machinability Rating (AISI 1212 = 100 %) 20% · Weldability 40 / 100 · Formability (cold) 5 / 100 · Castability 65 / 100 · Brazeability / Solderability 30 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 75 MJ/kg32,244 BTU/lb · Embodied Carbon (primary production) 4.6 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 40%
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.
C99300-M01 vs C99300-M02 — frequently asked
Is C99300-M02 stronger than C99300-M01?
Yes. C99300-M02 has a typical yield strength of 450 MPa (65.3 ksi) against 420 MPa (60.9 ksi) for C99300-M01 — about 7% more. Tensile strength is 690 MPa (100 ksi) vs 655 MPa (95 ksi).
Which condition does FabDigit quote by default, M01 or M02?
M01 is the default C99300 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 C99300-M01 over C99300-M02?
Pick C99300-M02 when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C99300-M01 and C99300-M02 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.