Titanium Ti-4Al-4Mo-2Sn-ANN vs Ti-4Al-4Mo-2Sn BETA-STA
Titanium · Ti-4Al-4Mo-2Sn temper comparison
Ti-4Al-4Mo-2Sn-ANN and Ti-4Al-4Mo-2Sn BETA-STA are two conditions of the same titanium grade, Ti-4Al-4Mo-2Sn: ANN (annealed) versus BETA-STA (β-processed / β-annealed + aged). The chemistry is identical, so every difference below comes from the condition. Ti-4Al-4Mo-2Sn BETA-STA is the stronger of the two: yield strength 970 MPa (141 ksi) against 900 MPa (131 ksi) for Ti-4Al-4Mo-2Sn-ANN, about 8% more; tensile strength follows at 1,080 MPa (157 ksi) vs 1,010 MPa (146 ksi). In exchange, Ti-4Al-4Mo-2Sn-ANN is the more ductile: elongation 16% versus 8% for Ti-4Al-4Mo-2Sn BETA-STA, and Ti-4Al-4Mo-2Sn BETA-STA is harder (332 HB vs 302 HB). Ti-4Al-4Mo-2Sn BETA-STA runs hotter in service (450°C vs 400°C continuous).
Ti-4Al-4Mo-2Sn-ANNChoose it when the part is bent, formed or impact-loaded.
Ti-4Al-4Mo-2Sn BETA-STAChoose it when strength drives the design, or when the part sees heat.
Ti-4Al-4Mo-2Sn-ANN vs Ti-4Al-4Mo-2Sn 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.
Ti-4Al-4Mo-2Sn-ANNTi-4Al-4Mo-2Sn BETA-STA
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
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 43 GPa6.2 Msi · Bulk Modulus 108 GPa15.7 Msi · Poisson's Ratio 0.32 · Compressive Strength 1,080 MPa157 ksi
Physical
Density and transition temperatures.
Same in both: Density 4.6 g/cm³0.17 lb/in³ · Melting Point (Solidus) 1,620°C2,948 °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 7.1 W/m·K4.1 BTU/hr·ft·°F · Specific Heat Capacity 540 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9.4 µm/m·K5.2 µin/in·°F · Latent Heat of Fusion 365 J/g157 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 25 / 100 · Brazeability / Solderability 35 / 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) 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-4Al-4Mo-2Sn-ANN vs Ti-4Al-4Mo-2Sn BETA-STA — frequently asked
Is Ti-4Al-4Mo-2Sn BETA-STA stronger than Ti-4Al-4Mo-2Sn-ANN?
Yes. Ti-4Al-4Mo-2Sn BETA-STA has a typical yield strength of 970 MPa (141 ksi) against 900 MPa (131 ksi) for Ti-4Al-4Mo-2Sn-ANN — about 8% more. Tensile strength is 1,080 MPa (157 ksi) vs 1,010 MPa (146 ksi).
Which condition does FabDigit quote by default, ANN or BETA-STA?
STA is the default Ti-4Al-4Mo-2Sn condition in the FabDigit quote flow (neither ANN nor BETA-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.
Which welds better, Ti-4Al-4Mo-2Sn-ANN or Ti-4Al-4Mo-2Sn BETA-STA?
Ti-4Al-4Mo-2Sn-ANN. Its weldability rates fair (35/100) against poor (28/100) for Ti-4Al-4Mo-2Sn BETA-STA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti-4Al-4Mo-2Sn-ANN and Ti-4Al-4Mo-2Sn 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.