Titanium Ti-6Al-5Zr-0.5Mo-ANN vs Ti-6Al-5Zr-0.5Mo BSTA
Titanium · Ti-6Al-5Zr-0.5Mo temper comparison
Ti-6Al-5Zr-0.5Mo-ANN and Ti-6Al-5Zr-0.5Mo BSTA are two conditions of the same titanium grade, Ti-6Al-5Zr-0.5Mo: ANN (annealed) versus BSTA (beta solution treated (≈1050 °C), oil quenched + aged 550 °C/24 h). The chemistry is identical, so every difference below comes from the condition. Both yield at about 880 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (annealed versus beta solution treated (≈1050 °C), oil quenched + aged 550 °C/24 h). Ti-6Al-5Zr-0.5Mo-ANN is the more ductile: elongation 13% versus 10% for Ti-6Al-5Zr-0.5Mo BSTA, and Ti-6Al-5Zr-0.5Mo BSTA is harder (34 HRC vs 32 HRC).
Ti-6Al-5Zr-0.5Mo-ANNChoose it when the part is bent, formed or impact-loaded.
Ti-6Al-5Zr-0.5Mo-ANN vs Ti-6Al-5Zr-0.5Mo BSTA: 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-6Al-5Zr-0.5Mo-ANNTi-6Al-5Zr-0.5Mo BSTA
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)
Charpy V-Notch Impact (RT)
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 120 GPa17.4 Msi · Shear Modulus 45 GPa6.5 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.32 · Compressive Strength 950 MPa138 ksi · Shear Strength 640 MPa92.8 ksi · Hardness, Brinell 310 HB
Physical
Density and transition temperatures.
Same in both: Density 4.45 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,620°C2,948 °F · Liquidus Temperature 1,680°C3,056 °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 520 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 -100°C-148 °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 88 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 18% · Weldability 65 / 100 · Castability 30 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 660 MJ/kg283,749 BTU/lb · Embodied Carbon (primary production) 44 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-6Al-5Zr-0.5Mo-ANN vs Ti-6Al-5Zr-0.5Mo BSTA — frequently asked
What is the difference between Ti-6Al-5Zr-0.5Mo-ANN and Ti-6Al-5Zr-0.5Mo BSTA?
Ti-6Al-5Zr-0.5Mo-ANN and Ti-6Al-5Zr-0.5Mo BSTA are two conditions of the same titanium grade, Ti-6Al-5Zr-0.5Mo: ANN (annealed) versus BSTA (beta solution treated (≈1050 °C), oil quenched + aged 550 °C/24 h). The chemistry is identical, so every difference below comes from the condition. Both yield at about 880 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (annealed versus beta solution treated (≈1050 °C), oil quenched + aged 550 °C/24 h).
Which condition does FabDigit quote by default, ANN or BSTA?
BSTA is the default Ti-6Al-5Zr-0.5Mo 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-6Al-5Zr-0.5Mo-ANN over Ti-6Al-5Zr-0.5Mo BSTA?
Pick Ti-6Al-5Zr-0.5Mo-ANN when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti-6Al-5Zr-0.5Mo-ANN and Ti-6Al-5Zr-0.5Mo BSTA 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.