Titanium Ti-10-2-3-STA vs Ti-10-2-3 STOA
Titanium · Ti-10-2-3 temper comparison
Ti-10-2-3-STA and Ti-10-2-3 STOA are two conditions of the same titanium grade, Ti-10-2-3: STA (solution treated and aged) versus STOA (solution treated and overaged). The chemistry is identical, so every difference below comes from the condition. Ti-10-2-3-STA is the stronger of the two: yield strength 1,170 MPa (170 ksi) against 1,020 MPa (148 ksi) for Ti-10-2-3 STOA, about 15% more; tensile strength follows at 1,250 MPa (181 ksi) vs 1,100 MPa (160 ksi). In exchange, Ti-10-2-3 STOA is the more ductile: elongation 12% versus 8% for Ti-10-2-3-STA, and Ti-10-2-3-STA is harder (40 HRC vs 36 HRC).
Ti-10-2-3-STAChoose it when strength drives the design.
Ti-10-2-3 STOAChoose it when the part is bent, formed or impact-loaded.
Ti-10-2-3-STA vs Ti-10-2-3 STOA: 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)
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 110 GPa16 Msi · Shear Modulus 41 GPa5.9 Msi · Bulk Modulus 104 GPa15.1 Msi · Poisson's Ratio 0.32
Physical
Density and transition temperatures.
Same in both: Density 4.65 g/cm³0.17 lb/in³ · Melting Point (Solidus) 1,600°C2,912 °F · Liquidus Temperature 1,650°C3,002 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 7.8 W/m·K4.5 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9 µm/m·K5 µin/in·°F · Latent Heat of Fusion 365 J/g157 BTU/lb · Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.2 % IACS · Electrical Resistivity 1.4×10⁻⁶ Ω·m55.1 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 85 / 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 25 / 100 · Brazeability / Solderability 35 / 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) 40 kg CO₂/kg · Embodied Water 500 L/kg59.9 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.
Ti-10-2-3-STA vs Ti-10-2-3 STOA — frequently asked
Is Ti-10-2-3-STA stronger than Ti-10-2-3 STOA?
Yes. Ti-10-2-3-STA has a typical yield strength of 1,170 MPa (170 ksi) against 1,020 MPa (148 ksi) for Ti-10-2-3 STOA — about 15% more. Tensile strength is 1,250 MPa (181 ksi) vs 1,100 MPa (160 ksi).
Which condition does FabDigit quote by default, STA or STOA?
O is the default Ti-10-2-3 condition in the FabDigit quote flow (neither STA nor STOA). 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, Ti-10-2-3-STA or Ti-10-2-3 STOA?
Ti-10-2-3 STOA. Its weldability rates fair (36/100) against poor (30/100) for Ti-10-2-3-STA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti-10-2-3-STA and Ti-10-2-3 STOA 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.