Copper Alloy C84800 vs C94300
Copper Alloy · grade comparison
Copper Alloy C84800 and C94300 are both copper alloy grades. C84800 is the stronger of the two: yield strength 124 MPa (18 ksi) against 105 MPa (15.2 ksi) for C94300, about 18% more; tensile strength follows at 262 MPa (38 ksi) vs 205 MPa (29.7 ksi). C84800 is the more ductile: elongation 35% versus 12% for C94300. C84800 is lighter (8.55 g/cm³ vs 9.29 g/cm³ for C94300) and C84800 is stiffer (86 GPa vs 72 GPa). On the shop floor, C84800 welds better (poor vs not recommended) and C94300 sits in a lower cost tier (high, $$$$) than C84800 (specialty, $$$$$).
C84800Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
C94300Choose it when the part sees heat, or when cost is the deciding factor.
C84800 vs C94300: 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
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Same in both: Bulk Modulus 105 GPa15.2 Msi · Hardness, Brinell 55 HB
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
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 58 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Castability
Brazeability / Solderability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 45 MJ/kg19,347 BTU/lb · Embodied Carbon (primary production) 3 kg CO₂/kg
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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 | C84800 | C94300 |
|---|---|---|
| CNC machining | Yes | — |
| Default condition | As Cast | — |
| Relative cost | $$$$$ Specialty | $$$$ High |
| Min. machined wall | 0.8 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| Chrome Plating | Yes | — |
| Electropolishing | Yes | — |
| Nickel Plating | Yes | — |
| Painting | Yes | — |
| Tin Plating | Yes | — |
They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C84800 vs C94300 — frequently asked
Is C84800 stronger than C94300?
Yes. C84800 has a typical yield strength of 124 MPa (18 ksi) against 105 MPa (15.2 ksi) for C94300 — about 18% more. Tensile strength is 262 MPa (38 ksi) vs 205 MPa (29.7 ksi).
Which is cheaper, C84800 or C94300?
C94300 is the lower-cost material: it sits in the high tier ($$$$) while C84800 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which welds better, C84800 or C94300?
C84800. Its weldability rates poor (20/100) against not recommended (8/100) for C94300.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C84800 and C94300 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.