Copper Alloy C82700-M vs C82700-TB00
Copper Alloy · C82700 temper comparison
C82700-M and C82700-TB00 are two conditions of the same copper alloy grade, C82700: M (thermomechanically controlled processed) versus TB00 (solution heat treated). The chemistry is identical, so every difference below comes from the condition. C82700-M is the stronger of the two: yield strength 340 MPa (49.3 ksi) against 205 MPa (29.7 ksi) for C82700-TB00, about 66% more; tensile strength follows at 550 MPa (79.8 ksi) vs 480 MPa (69.6 ksi). In exchange, C82700-TB00 is the more ductile: elongation 20% versus 6% for C82700-M, and C82700-M is harder (200 HB vs 150 HB). C82700-M conducts heat better (90 W/m·K vs 80 W/m·K). On the shop floor, C82700-M machines more easily (45 vs 35 out of 100) and C82700-TB00 welds better (50 vs 40 out of 100).
C82700-MChoose it when strength drives the design, or when the part is machined in volume.
C82700-TB00Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
C82700-M vs C82700-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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 128 GPa18.6 Msi · Shear Modulus 50 GPa7.3 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 8.26 g/cm³0.3 lb/in³ · Melting Point (Solidus) 866°C1,591 °F · Liquidus Temperature 980°C1,796 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 419 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.5 µm/m·K9.7 µin/in·°F · Latent Heat of Fusion 200 J/g86 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V
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 75 / 100 · Brazeability / Solderability 55 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 110 MJ/kg47,292 BTU/lb · Embodied Carbon (primary production) 8 kg CO₂/kg · Embodied Water 350 L/kg41.9 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.
C82700-M vs C82700-TB00 — frequently asked
Is C82700-M stronger than C82700-TB00?
Yes. C82700-M has a typical yield strength of 340 MPa (49.3 ksi) against 205 MPa (29.7 ksi) for C82700-TB00 — about 66% more. Tensile strength is 550 MPa (79.8 ksi) vs 480 MPa (69.6 ksi).
Which condition does FabDigit quote by default, M or TB00?
TF00 is the default C82700 condition in the FabDigit quote flow (neither M 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, C82700-M or C82700-TB00?
C82700-M, by a small margin. Both rate fair for machinability — 45/100 against 35/100 for C82700-TB00; for welding the order is C82700-TB00 first (fair, 50/100) then C82700-M (fair, 40/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C82700-M and C82700-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.