Copper Alloy C83300 vs C83400
Copper Alloy · grade comparison
Copper Alloy C83300 and C83400 are both copper alloy grades. Both yield at about 69 MPa — strength does not separate them. C83400 is harder — 50 HB against 35 HB for C83300 — which matters for wear surfaces and threads. On the shop floor, C83300 machines more easily (excellent vs good) and C83400 welds better (fair vs poor).
C83300Choose it when the part is machined in volume.
C83400Choose it when surface hardness matters, or when it will be welded.
C83300 vs C83400: 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
Shear Strength
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 96.5 GPa14 Msi · Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.34 · Tensile Strength (Ultimate) 234 MPa33.9 ksi · Yield Strength (0.2% offset) 69 MPa10 ksi · Elongation at Break 35% · Reduction in Area 30% · Fatigue Strength (Endurance Limit) 70 MPa10.2 ksi
Physical
Density and transition temperatures.
Same in both: Density 8.8 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,010°C1,850 °F · Liquidus Temperature 1,055°C1,931 °F
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
Min Service Temperature
Same in both: Max Service Temperature (continuous) 200°C392 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 32 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V · Corrosion Resistance 62 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Polishability 70 / 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.
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Strength (UTS / density) 27 kN·m/kg · Specific Stiffness (E / density) 11 MN·m/kg · Modulus of Resilience 25 kJ/m³
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 | C83300 | C83400 |
|---|---|---|
| CNC machining | — | Yes |
| Default condition | — | As Cast |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | 0.8 mm |
| Best machined surface | — | Ra 1.6 µm |
| Chrome Plating | — | Yes |
| Electropolishing | — | Yes |
| Nickel Plating | — | Yes |
| Painting | — | Yes |
| Tin Plating | — | Yes |
They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C83300 vs C83400 — frequently asked
What is the difference between C83300 and C83400?
Copper Alloy C83300 and C83400 are both copper alloy grades. Both yield at about 69 MPa — strength does not separate them. C83400 is harder — 50 HB against 35 HB for C83300 — which matters for wear surfaces and threads.
Which is cheaper, C83300 or C83400?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, C83300 or C83400?
C83300. Its machinability rates excellent (85/100) against good (58/100) for C83400; for welding the order is C83400 first (fair, 45/100) then C83300 (poor, 30/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C83300 and C83400 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.