Titanium IMI 829-ANN vs IMI 829 BETA-STA
Titanium · IMI 829 temper comparison
IMI 829-ANN and IMI 829 BETA-STA are two conditions of the same titanium grade, IMI 829: ANN (annealed) versus BETA-STA (Β-STA). The chemistry is identical, so every difference below comes from the condition. IMI 829 BETA-STA is the stronger of the two: yield strength 865 MPa (125 ksi) against 820 MPa (119 ksi) for IMI 829-ANN, about 5% more; tensile strength follows at 980 MPa (142 ksi) vs 930 MPa (135 ksi). In exchange, IMI 829-ANN is the more ductile: elongation 13% versus 11% for IMI 829 BETA-STA, and IMI 829 BETA-STA is harder (313 HB vs 295 HB). IMI 829 BETA-STA runs hotter in service (580°C vs 500°C continuous).
IMI 829-ANNChoose it when the part is bent, formed or impact-loaded.
IMI 829 BETA-STAChoose it when strength drives the design, or when the part sees heat.
IMI 829-ANN vs IMI 829 BETA-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.
Elastic (Young's) Modulus
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: Shear Modulus 45 GPa6.5 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.32
Physical
Density and transition temperatures.
Same in both: Density 4.54 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,550°C2,822 °F · Liquidus Temperature 1,630°C2,966 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 7 W/m·K4 BTU/hr·ft·°F · Specific Heat Capacity 530 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9.5 µm/m·K5.3 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 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 30 / 100 · Brazeability / Solderability 40 / 100 · Polishability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 700 MJ/kg300,946 BTU/lb · Embodied Carbon (primary production) 43 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 15%
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.
IMI 829-ANN vs IMI 829 BETA-STA — frequently asked
Is IMI 829 BETA-STA stronger than IMI 829-ANN?
Yes. IMI 829 BETA-STA has a typical yield strength of 865 MPa (125 ksi) against 820 MPa (119 ksi) for IMI 829-ANN — about 5% more. Tensile strength is 980 MPa (142 ksi) vs 930 MPa (135 ksi).
Which condition does FabDigit quote by default, ANN or BETA-STA?
BETA-STA is the default IMI 829 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 welds better, IMI 829-ANN or IMI 829 BETA-STA?
IMI 829-ANN. Its weldability rates fair (50/100) against fair (45/100) for IMI 829 BETA-STA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in IMI 829-ANN and IMI 829 BETA-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.