RP Graphite Electrode vs RVC
Ceramic · grade comparison
RP Graphite Electrode and RVC are both ceramic grades. RP Graphite Electrode is the stronger of the two: tensile strength 7 MPa (1.02 ksi) against 0.42 MPa (0.0609 ksi) for RVC, about 17 times as much. In exchange, RVC is the more ductile: elongation 0.3% versus 0.25% for RP Graphite Electrode. RVC is lighter (0.05 g/cm³ vs 1.56 g/cm³ for RP Graphite Electrode) and RP Graphite Electrode is stiffer (9 GPa vs 0.11 GPa). On the shop floor, RP Graphite Electrode machines more easily (excellent vs fair) and RP Graphite Electrode sits in a lower cost tier (standard, $$) than RVC (high, $$$$).
RP Graphite ElectrodeChoose it when strength drives the design, or when the part sees heat.
RVCChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
RP Graphite Electrode vs RVC: 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Flexural Strength
Shear Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Mohs
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Porosity
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 710 J/kg·K0.17 BTU/lb·°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
Polishability
Sintering / Firing Temperature
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)
Specific Stiffness (E / density)
Thermal Diffusivity
Thermal Shock Resistance Index
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 | RP Graphite Electrode | RVC |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
RP Graphite Electrode vs RVC — frequently asked
Is RP Graphite Electrode stronger than RVC?
Yes. RP Graphite Electrode has a typical tensile strength of 7 MPa (1.02 ksi) against 0.42 MPa (0.0609 ksi) for RVC — about 17 times as much.
Which is cheaper, RP Graphite Electrode or RVC?
RP Graphite Electrode is the lower-cost material: it sits in the standard tier ($$) while RVC is high ($$$$). 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, RP Graphite Electrode or RVC?
RP Graphite Electrode. Its machinability rates excellent (90/100) against fair (35/100) for RVC.
Ready to make it?
Upload a CAD file and FabDigit prices the part in RP Graphite Electrode and RVC 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.