Refractory Metal Cr99.90 vs FeCr-LC
Refractory Metal · grade comparison
Refractory Metal Cr99.90 and FeCr-LC are both refractory metal grades. Cr99.90 is the stronger of the two: tensile strength 300 MPa (43.5 ksi) against 200 MPa (29 ksi) for FeCr-LC, about 50% more. In exchange, FeCr-LC is the more ductile: elongation 0.1% versus 0% for Cr99.90, and FeCr-LC is harder (480 HV vs 400 HV). Cr99.90 is stiffer (279 GPa vs 220 GPa) and Cr99.90 conducts heat better (93.9 W/m·K vs 16 W/m·K). On the shop floor, FeCr-LC sits in a lower cost tier (budget, $) than Cr99.90 (high, $$$$).
Cr99.90Choose it when strength drives the design.
FeCr-LCChoose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
Cr99.90 vs FeCr-LC: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all refractory metal 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 refractory metal 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
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Shear Strength
Hardness, Brinell
Hardness, Rockwell C
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
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Machinability Rating (AISI 1212 = 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.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every refractory metal grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Cr99.90 | FeCr-LC |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Cr99.90 vs FeCr-LC — frequently asked
Is Cr99.90 stronger than FeCr-LC?
Yes. Cr99.90 has a typical tensile strength of 300 MPa (43.5 ksi) against 200 MPa (29 ksi) for FeCr-LC — about 50% more.
Which is cheaper, Cr99.90 or FeCr-LC?
FeCr-LC is the lower-cost material: it sits in the budget tier ($) while Cr99.90 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
When should I choose Cr99.90 over FeCr-LC?
Pick Cr99.90 when strength drives the design. Pick FeCr-LC when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Cr99.90 and FeCr-LC 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.