Titanium TC11-DA vs TC11-STA
Titanium · TC11 temper comparison
TC11-DA and TC11-STA are two conditions of the same titanium grade, TC11: DA (duplex annealed) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. TC11-STA is the stronger of the two: yield strength 1,060 MPa (154 ksi) against 980 MPa (142 ksi) for TC11-DA, about 8% more; tensile strength follows at 1,180 MPa (171 ksi) vs 1,100 MPa (160 ksi). In exchange, TC11-DA is the more ductile: elongation 14% versus 10% for TC11-STA, and TC11-STA is harder (360 HB vs 335 HB).
TC11-DAChoose it when the part is bent, formed or impact-loaded.
TC11-STAChoose it when strength drives the design.
TC11-DA vs TC11-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 118 GPa17.1 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 115 GPa16.7 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 4.48 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,600°C2,912 °F · Liquidus Temperature 1,660°C3,020 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 7.9 W/m·K4.6 BTU/hr·ft·°F · Specific Heat Capacity 610 J/kg·K0.15 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.1 % IACS · Electrical Resistivity 1.6×10⁻⁶ Ω·m63 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
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 45 / 100 · Castability 25 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 650 MJ/kg279,450 BTU/lb · Embodied Carbon (primary production) 42 kg CO₂/kg · Embodied Water 1,200 L/kg144 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.
TC11-DA vs TC11-STA — frequently asked
Is TC11-STA stronger than TC11-DA?
Yes. TC11-STA has a typical yield strength of 1,060 MPa (154 ksi) against 980 MPa (142 ksi) for TC11-DA — about 8% more. Tensile strength is 1,180 MPa (171 ksi) vs 1,100 MPa (160 ksi).
Which condition does FabDigit quote by default, DA or STA?
M is the default TC11 condition in the FabDigit quote flow (neither DA 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 TC11-DA over TC11-STA?
Pick TC11-DA when the part is bent, formed or impact-loaded. Pick TC11-STA when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in TC11-DA and TC11-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.