Prebaked Carbon Anode vs RP Graphite Electrode
Ceramic · grade comparison
Prebaked Carbon Anode and RP Graphite Electrode are both ceramic grades. RP Graphite Electrode is the stronger of the two: tensile strength 7 MPa (1.02 ksi) against 6 MPa (0.798 ksi) for Prebaked Carbon Anode, about 27% more. RP Graphite Electrode is stiffer (9 GPa vs 6 GPa) and Prebaked Carbon Anode runs hotter in service (500°C vs 450°C continuous). On the shop floor, RP Graphite Electrode machines more easily (excellent vs good) and Prebaked Carbon Anode sits in a lower cost tier (budget, $) than RP Graphite Electrode (standard, $$).
Prebaked Carbon AnodeChoose it when the part sees heat, or when cost is the deciding factor.
RP Graphite ElectrodeChoose it when strength drives the design, or when the part is machined in volume.
Prebaked Carbon Anode vs RP Graphite Electrode: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all ceramic 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 ceramic 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.
Prebaked Carbon AnodeRP Graphite Electrode
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Compressive Strength
Flexural Strength
Hardness, Mohs
Shear Modulus
Elongation at Break
Shear Strength
Hardness, Vickers
Same in both: Fracture Toughness (K_IC) 1 MPa·√m0.91 ksi·√in
Physical
Density and transition temperatures.
Melting Point (Solidus)
Porosity
Same in both: Density 1.56 g/cm³0.06 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)
Max Service Temperature (continuous)
Same in both: Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Sintering / Firing Temperature
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
Common Calculations
Ratios derived from the values above.
Specific Stiffness (E / density)
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Strength (UTS / density) 4 kN·m/kg
Strength versus weight
Yield strength against density for every ceramic grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Prebaked Carbon Anode | RP Graphite Electrode |
|---|---|---|
| Default condition | — | — |
| Relative cost | $ Budget | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Prebaked Carbon Anode vs RP Graphite Electrode — frequently asked
Is RP Graphite Electrode stronger than Prebaked Carbon Anode?
Yes. RP Graphite Electrode has a typical tensile strength of 7 MPa (1.02 ksi) against 6 MPa (0.798 ksi) for Prebaked Carbon Anode — about 27% more.
Which is cheaper, Prebaked Carbon Anode or RP Graphite Electrode?
Prebaked Carbon Anode is the lower-cost material: it sits in the budget tier ($) while RP Graphite Electrode is standard ($$). 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, Prebaked Carbon Anode or RP Graphite Electrode?
RP Graphite Electrode. Its machinability rates excellent (90/100) against good (65/100) for Prebaked Carbon Anode.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Prebaked Carbon Anode and RP Graphite Electrode 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.