Copper Alloy C70500 vs C70600
Copper Alloy · grade comparison
Copper Alloy C70500 and C70600 are both copper alloy grades. C70600 is the stronger of the two: yield strength 120 MPa (17.4 ksi) against 105 MPa (15.2 ksi) for C70500, about 14% more; tensile strength follows at 310 MPa (45 ksi) vs 275 MPa (39.9 ksi). C70600 is harder — 65 HB against 55 HB for C70500 — which matters for wear surfaces and threads. C70500 conducts heat better (90 W/m·K vs 40 W/m·K). On the shop floor, C70600 welds better (excellent vs very good).
C70600Choose it when strength drives the design, or when surface hardness matters.
C70500 vs C70600: 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.
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, Vickers
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 124 GPa18 Msi · Elongation at Break 40%
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
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Min Service Temperature
Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Max Service Temperature (continuous) 300°C572 °F
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
Brazeability / Solderability
Polishability
Castability
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Formability (cold) 90 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 13.9 MN·m/kg
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 | C70500 | C70600 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C70500 vs C70600 — frequently asked
Is C70600 stronger than C70500?
Yes. C70600 has a typical yield strength of 120 MPa (17.4 ksi) against 105 MPa (15.2 ksi) for C70500 — about 14% more. Tensile strength is 310 MPa (45 ksi) vs 275 MPa (39.9 ksi).
Which is cheaper, C70500 or C70600?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, C70500 or C70600?
C70600, by a small margin. Both rate poor for machinability — 28/100 against 22/100 for C70500; for welding the order is C70600 first (excellent, 92/100) then C70500 (very good, 80/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C70500 and C70600 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.