Copper Alloy C81300-M02 vs C81300-TB00
Copper Alloy · C81300 temper comparison
C81300-M02 and C81300-TB00 are two conditions of the same copper alloy grade, C81300: M02 (as centrifugally cast) versus TB00 (solution heat treated). The chemistry is identical, so every difference below comes from the condition. C81300-M02 is the stronger of the two: yield strength 105 MPa (15.2 ksi) against 90 MPa (13.1 ksi) for C81300-TB00, about 17% more. In exchange, C81300-TB00 is the more ductile: elongation 30% versus 22% for C81300-M02, and C81300-M02 is harder (50 HB vs 42 HB). C81300-M02 runs hotter in service (250°C vs 200°C continuous) and C81300-M02 conducts heat better (195 W/m·K vs 170 W/m·K).
C81300-M02Choose it when strength drives the design, or when the part sees heat.
C81300-TB00Choose it when the part is bent, formed or impact-loaded.
C81300-M02 vs C81300-TB00: 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
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 124 GPa18 Msi · Shear Modulus 48 GPa7 Msi · Bulk Modulus 130 GPa18.9 Msi · Poisson's Ratio 0.3 · Hardness, Rockwell B 55 HRB
Physical
Density and transition temperatures.
Same in both: Density 8.83 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,065°C1,949 °F · Liquidus Temperature 1,080°C1,976 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 376 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.6 µm/m·K9.8 µin/in·°F · Latent Heat of Fusion 205 J/g88.1 BTU/lb · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V · Corrosion Resistance 60 / 100
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 70 / 100 · Brazeability / Solderability 70 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 58 MJ/kg24,936 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 30%
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.
C81300-M02 vs C81300-TB00 — frequently asked
Is C81300-M02 stronger than C81300-TB00?
Yes. C81300-M02 has a typical yield strength of 105 MPa (15.2 ksi) against 90 MPa (13.1 ksi) for C81300-TB00 — about 17% more. Tensile strength is 235 MPa (34.1 ksi) vs 225 MPa (32.6 ksi).
Which condition does FabDigit quote by default, M02 or TB00?
TF00 is the default C81300 condition in the FabDigit quote flow (neither M02 nor TB00). 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, C81300-M02 or C81300-TB00?
C81300-TB00, by a small margin. Both rate fair for machinability — 48/100 against 42/100 for C81300-M02; for welding the order is C81300-TB00 first (very good, 70/100) then C81300-M02 (good, 65/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C81300-M02 and C81300-TB00 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.