Titanium Grade C-6-ANN vs Grade C-6-ELI
Titanium · Grade C-6 temper comparison
Grade C-6-ANN and Grade C-6-ELI are two conditions of the same titanium grade, Grade C-6: ANN (annealed) versus ELI (extra-low-interstitial casting variant (O ≤ 0.12 %), HIP + annealed). The chemistry is identical, so every difference below comes from the condition. Grade C-6-ANN is the stronger of the two: yield strength 795 MPa (115 ksi) against 720 MPa (104 ksi) for Grade C-6-ELI, about 10% more; tensile strength follows at 855 MPa (124 ksi) vs 790 MPa (115 ksi). In exchange, Grade C-6-ELI is the more ductile: elongation 14% versus 10% for Grade C-6-ANN, and Grade C-6-ANN is harder (295 HB vs 275 HB).
Grade C-6-ANNChoose it when strength drives the design.
Grade C-6-ELIChoose it when the part is bent, formed or impact-loaded.
Grade C-6-ANN vs Grade C-6-ELI: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all titanium 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 titanium 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.31
Physical
Density and transition temperatures.
Same in both: Density 4.48 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,540°C2,804 °F · Liquidus Temperature 1,620°C2,948 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Min Service Temperature
Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9.4 µm/m·K5.2 µin/in·°F · Latent Heat of Fusion 325 J/g140 BTU/lb · Max Service Temperature (continuous) 480°C896 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1.1 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 88 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 62 / 100 · Brazeability / Solderability 40 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 680 MJ/kg292,348 BTU/lb · Embodied Carbon (primary production) 45 kg CO₂/kg · Embodied Water 450 L/kg53.9 gal/lb · Typical Recycled Content 25%
Strength versus weight
Yield strength against density for every titanium grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Grade C-6-ANN vs Grade C-6-ELI — frequently asked
Is Grade C-6-ANN stronger than Grade C-6-ELI?
Yes. Grade C-6-ANN has a typical yield strength of 795 MPa (115 ksi) against 720 MPa (104 ksi) for Grade C-6-ELI — about 10% more. Tensile strength is 855 MPa (124 ksi) vs 790 MPa (115 ksi).
Which condition does FabDigit quote by default, ANN or ELI?
HIP+ANN is the default Grade C-6 condition in the FabDigit quote flow (neither ANN nor ELI). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which welds better, Grade C-6-ANN or Grade C-6-ELI?
Grade C-6-ELI. Its weldability rates excellent (85/100) against very good (80/100) for Grade C-6-ANN.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Grade C-6-ANN and Grade C-6-ELI 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.