Copper Alloy C95500 vs C95520
Copper Alloy · grade comparison
Copper Alloy C95500 and C95520 are both copper alloy grades. C95520 is the stronger of the two: yield strength 725 MPa (105 ksi) against 300 MPa (43.5 ksi) for C95500, about 142% more; tensile strength follows at 965 MPa (140 ksi) vs 700 MPa (102 ksi). In exchange, C95500 is the more ductile: elongation 8% versus 6% for C95520, and C95520 is harder (302 HB vs 192 HB). C95520 is stiffer (117 GPa vs 110 GPa) and C95500 conducts electricity better (8.5 % IACS vs 7 % IACS). On the shop floor, C95500 machines more easily (fair vs poor), C95500 welds better (good vs fair), and C95520 sits in a lower cost tier (high, $$$$) than C95500 (specialty, $$$$$).
C95500Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
C95520Choose it when strength drives the design, or when cost is the deciding factor.
C95500 vs C95520: 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Reduction in Area
Compressive Strength
Hardness, Rockwell C
Hardness, Vickers
Same in both: Poisson's Ratio 0.32
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
Same in both: Density 7.53 g/cm³0.27 lb/in³
Thermal
How each material carries heat and how hot it can run.
Latent Heat of Fusion
Min Service Temperature
Same in both: Thermal Conductivity 42 W/m·K24.3 BTU/hr·ft·°F · Specific Heat Capacity 419 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16.2 µm/m·K9 µin/in·°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).
Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V · Corrosion Resistance 80 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Castability
Brazeability / Solderability
Same in both: Formability (cold) 15 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Typical Recycled Content
Same in both: Embodied Energy (primary production) 60 MJ/kg25,795 BTU/lb · Embodied Carbon (primary production) 4.2 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Shock Resistance Index
Same in both: Thermal Diffusivity 13.3 mm²/s
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 | C95500 | C95520 |
|---|---|---|
| CNC machining | Yes | — |
| Default condition | As Cast | — |
| Relative cost | $$$$$ Specialty | $$$$ High |
| Min. machined wall | 0.8 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| Chrome Plating | Yes | — |
| Electropolishing | Yes | — |
| Nickel Plating | Yes | — |
| Painting | Yes | — |
| Tin Plating | Yes | — |
They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C95500 vs C95520 — frequently asked
Is C95520 stronger than C95500?
Yes. C95520 has a typical yield strength of 725 MPa (105 ksi) against 300 MPa (43.5 ksi) for C95500 — about 142% more. Tensile strength is 965 MPa (140 ksi) vs 700 MPa (102 ksi).
Which is cheaper, C95500 or C95520?
C95520 is the lower-cost material: it sits in the high tier ($$$$) while C95500 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, C95500 or C95520?
C95500. Its machinability rates fair (40/100) against poor (28/100) for C95520; for welding the order is C95500 first (good, 60/100) then C95520 (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C95500 and C95520 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.