Titanium ERTi-24-ANN vs ERTi-24-STA
Titanium · ERTi-24 temper comparison
ERTi-24-ANN and ERTi-24-STA are two conditions of the same titanium grade, ERTi-24: ANN (annealed) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. ERTi-24-STA is the stronger of the two: yield strength 1,020 MPa (148 ksi) against 880 MPa (128 ksi) for ERTi-24-ANN, about 16% more; tensile strength follows at 1,100 MPa (160 ksi) vs 950 MPa (138 ksi). In exchange, ERTi-24-ANN is the more ductile: elongation 13% versus 8% for ERTi-24-STA, and ERTi-24-STA is harder (360 HB vs 320 HB). On the shop floor, ERTi-24-ANN welds better (very good vs good).
ERTi-24-ANNChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
ERTi-24-STAChoose it when strength drives the design.
ERTi-24-ANN vs ERTi-24-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 44 GPa6.4 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34
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.
Thermal Conductivity
Same in both: Specific Heat Capacity 560 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 365 J/g157 BTU/lb · Max Service Temperature (continuous) 350°C662 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.05 V
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 55 / 100 · Brazeability / Solderability 40 / 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 900 L/kg108 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.
ERTi-24-ANN vs ERTi-24-STA — frequently asked
Is ERTi-24-STA stronger than ERTi-24-ANN?
Yes. ERTi-24-STA has a typical yield strength of 1,020 MPa (148 ksi) against 880 MPa (128 ksi) for ERTi-24-ANN — about 16% more. Tensile strength is 1,100 MPa (160 ksi) vs 950 MPa (138 ksi).
Which condition does FabDigit quote by default, ANN or STA?
AW is the default ERTi-24 condition in the FabDigit quote flow (neither ANN nor 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, ERTi-24-ANN or ERTi-24-STA?
ERTi-24-ANN. Its weldability rates very good (80/100) against good (65/100) for ERTi-24-STA.
Ready to make it?
Upload a CAD file and FabDigit prices the part in ERTi-24-ANN and ERTi-24-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.