Titanium VT14 Annealed vs VT14-STA
Titanium · VT14 temper comparison
VT14 Annealed and VT14-STA are two conditions of the same titanium grade, VT14: Annealed versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. VT14-STA is the stronger of the two: yield strength 1,080 MPa (157 ksi) against 850 MPa (123 ksi) for VT14 Annealed, about 27% more; tensile strength follows at 1,180 MPa (171 ksi) vs 930 MPa (135 ksi). In exchange, VT14 Annealed is the more ductile: elongation 12% versus 8% for VT14-STA, and VT14-STA is harder (360 HB vs 285 HB). On the shop floor, VT14 Annealed welds better (very good vs fair).
VT14 AnnealedChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
VT14-STAChoose it when strength drives the design.
VT14 Annealed vs VT14-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
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 115 GPa16.7 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.32 · Compressive Strength 960 MPa139 ksi
Physical
Density and transition temperatures.
Same in both: Density 4.52 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.
Same in both: Thermal Conductivity 8.4 W/m·K4.9 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 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 · Max Service Temperature (continuous) 400°C752 °F · 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 90 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Castability 35 / 100 · Brazeability / Solderability 45 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 700 MJ/kg300,946 BTU/lb · Embodied Carbon (primary production) 42 kg CO₂/kg · Embodied Water 350 L/kg41.9 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.
VT14 Annealed vs VT14-STA — frequently asked
Is VT14-STA stronger than VT14 Annealed?
Yes. VT14-STA has a typical yield strength of 1,080 MPa (157 ksi) against 850 MPa (123 ksi) for VT14 Annealed — about 27% more. Tensile strength is 1,180 MPa (171 ksi) vs 930 MPa (135 ksi).
Which condition does FabDigit quote by default, Annealed or STA?
Annealed is the default VT14 condition in the FabDigit quote flow. 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 is easier to machine, VT14 Annealed or VT14-STA?
VT14 Annealed, by a small margin. Both rate poor for machinability — 22/100 against 16/100 for VT14-STA; for welding the order is VT14 Annealed first (very good, 70/100) then VT14-STA (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in VT14 Annealed and VT14-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.