Titanium Grade C-5-ANN vs Grade C-5-STA
Titanium · Grade C-5 temper comparison
Grade C-5-ANN and Grade C-5-STA are two conditions of the same titanium grade, Grade C-5: ANN (annealed) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. Grade C-5-STA is the stronger of the two: yield strength 970 MPa (141 ksi) against 855 MPa (124 ksi) for Grade C-5-ANN, about 13% more; tensile strength follows at 1,070 MPa (155 ksi) vs 925 MPa (134 ksi). In exchange, Grade C-5-ANN is the more ductile: elongation 8% versus 6% for Grade C-5-STA, and Grade C-5-STA is harder (360 HB vs 330 HB).
Grade C-5-ANNChoose it when the part is bent, formed or impact-loaded.
Grade C-5-STAChoose it when strength drives the design.
Grade C-5-ANN vs Grade C-5-STA: 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.
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: Elastic (Young's) Modulus 112 GPa16.2 Msi · Shear Modulus 43 GPa6.2 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 4.43 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,604°C2,919 °F · Liquidus Temperature 1,650°C3,002 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 6.8 W/m·K3.9 BTU/hr·ft·°F · Specific Heat Capacity 560 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.7 µm/m·K4.8 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1 % IACS · Electrical Resistivity 1.7×10⁻⁶ Ω·m66.9 µΩ·in
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
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 22% · Weldability 65 / 100 · Castability 70 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 660 MJ/kg283,749 BTU/lb · Embodied Carbon (primary production) 44 kg CO₂/kg · Embodied Water 1,100 L/kg132 gal/lb · Typical Recycled Content 40%
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-5-ANN vs Grade C-5-STA — frequently asked
Is Grade C-5-STA stronger than Grade C-5-ANN?
Yes. Grade C-5-STA has a typical yield strength of 970 MPa (141 ksi) against 855 MPa (124 ksi) for Grade C-5-ANN — about 13% more. Tensile strength is 1,070 MPa (155 ksi) vs 925 MPa (134 ksi).
Which condition does FabDigit quote by default, ANN or STA?
HIP is the default Grade C-5 condition in the FabDigit quote flow (neither ANN nor STA). 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.
When should I choose Grade C-5-ANN over Grade C-5-STA?
Pick Grade C-5-ANN when the part is bent, formed or impact-loaded. Pick Grade C-5-STA when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Grade C-5-ANN and Grade C-5-STA 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.