Titanium Ti Grade 29 Annealed vs Ti Grade 29-STA
Titanium · Ti Grade 29 temper comparison
Ti Grade 29 Annealed and Ti Grade 29-STA are two conditions of the same titanium grade, Ti Grade 29: Annealed versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. Ti Grade 29-STA is the stronger of the two: yield strength 930 MPa (135 ksi) against 830 MPa (120 ksi) for Ti Grade 29 Annealed, about 12% more; tensile strength follows at 1,000 MPa (145 ksi) vs 900 MPa (131 ksi). In exchange, Ti Grade 29 Annealed is the more ductile: elongation 15% versus 11% for Ti Grade 29-STA, and Ti Grade 29-STA is harder (350 HB vs 330 HB).
Ti Grade 29 AnnealedChoose it when the part is bent, formed or impact-loaded.
Ti Grade 29-STAChoose it when strength drives the design.
Ti Grade 29 Annealed vs Ti Grade 29-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.
Ti Grade 29 AnnealedTi Grade 29-STA
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 114 GPa16.5 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34 · Compressive Strength 870 MPa126 ksi · Shear Strength 570 MPa82.7 ksi · Charpy V-Notch Impact (RT) 27 J19.9 ft·lbf
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 1,660°C3,020 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 6.7 W/m·K3.9 BTU/hr·ft·°F · Specific Heat Capacity 526 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 290 J/g125 BTU/lb · Max Service Temperature (continuous) 315°C599 °F · Min Service Temperature -253°C-423 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1 % IACS · Electrical Resistivity 1.71×10⁻⁶ Ω·m67.3 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 96 / 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 80 / 100 · Castability 45 / 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) 45 kg CO₂/kg · Embodied Water 800 L/kg95.9 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 Grade 29 Annealed vs Ti Grade 29-STA — frequently asked
Is Ti Grade 29-STA stronger than Ti Grade 29 Annealed?
Yes. Ti Grade 29-STA has a typical yield strength of 930 MPa (135 ksi) against 830 MPa (120 ksi) for Ti Grade 29 Annealed — about 12% more. Tensile strength is 1,000 MPa (145 ksi) vs 900 MPa (131 ksi).
Which condition does FabDigit quote by default, Annealed or STA?
Annealed is the default Ti Grade 29 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.
When should I choose Ti Grade 29 Annealed over Ti Grade 29-STA?
Pick Ti Grade 29 Annealed when the part is bent, formed or impact-loaded. Pick Ti Grade 29-STA when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti Grade 29 Annealed and Ti Grade 29-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.