Copper Alloy C70600 vs C71000
Copper Alloy · grade comparison
Copper Alloy C70600 and C71000 are both copper alloy grades. C70600 is the stronger of the two: yield strength 120 MPa (17.4 ksi) against 110 MPa (16 ksi) for C71000, about 9% more. C71000 is harder — 75 HB against 65 HB for C70600 — which matters for wear surfaces and threads. C71000 is stiffer (138 GPa vs 124 GPa) and C70600 conducts electricity better (9.5 % IACS vs 6.5 % IACS).
C70600Choose it when strength drives the design.
C71000Choose it when surface hardness matters.
C70600 vs C71000: 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elongation at Break 40%
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
Same in both: Density 8.94 g/cm³0.32 lb/in³
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
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
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Formability (cold) 90 / 100 · Castability 45 / 100 · Brazeability / Solderability 88 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Same in both: Embodied Carbon (primary production) 5.2 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 30%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Thermal Shock Resistance Index 6
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.
Manufacturing and finishing
| Capability | C70600 | C71000 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C70600 vs C71000 — frequently asked
Is C70600 stronger than C71000?
Yes. C70600 has a typical yield strength of 120 MPa (17.4 ksi) against 110 MPa (16 ksi) for C71000 — about 9% more. Tensile strength is 310 MPa (45 ksi) vs 340 MPa (49.3 ksi).
Which is cheaper, C70600 or C71000?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, C70600 or C71000?
C70600, by a small margin. Both rate poor for machinability — 28/100 against 20/100 for C71000; for welding the order is C70600 first (excellent, 92/100) then C71000 (excellent, 85/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C70600 and C71000 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.