Titanium Ti-5Al-2.5Fe vs Ti-6Al-6V-2Sn
Titanium · grade comparison
Titanium Ti-5Al-2.5Fe and Ti-6Al-6V-2Sn are both titanium grades. Ti-6Al-6V-2Sn is the stronger of the two: yield strength 980 MPa (142 ksi) against 870 MPa (126 ksi) for Ti-5Al-2.5Fe, about 13% more; tensile strength follows at 1,050 MPa (152 ksi) vs 950 MPa (138 ksi). Ti-6Al-6V-2Sn is harder — 340 HB against 305 HB for Ti-5Al-2.5Fe — which matters for wear surfaces and threads. On the shop floor, Ti-5Al-2.5Fe welds better (good vs fair) and Ti-5Al-2.5Fe forms better (30 vs 20 out of 100).
Ti-5Al-2.5FeChoose it when it will be welded.
Ti-6Al-6V-2SnChoose it when strength drives the design, or when surface hardness matters.
Ti-5Al-2.5Fe vs Ti-6Al-6V-2Sn: 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.
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 110 GPa16 Msi · Fatigue Strength (Endurance Limit) 550 MPa79.8 ksi
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Latent Heat of Fusion 365 J/g157 BTU/lb
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1.1 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | Ti-5Al-2.5Fe | Ti-6Al-6V-2Sn |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 1 finish: Plasma Spray.
Ti-5Al-2.5Fe vs Ti-6Al-6V-2Sn — frequently asked
Is Ti-6Al-6V-2Sn stronger than Ti-5Al-2.5Fe?
Yes. Ti-6Al-6V-2Sn has a typical yield strength of 980 MPa (142 ksi) against 870 MPa (126 ksi) for Ti-5Al-2.5Fe — about 13% more. Tensile strength is 1,050 MPa (152 ksi) vs 950 MPa (138 ksi).
Which is cheaper, Ti-5Al-2.5Fe or Ti-6Al-6V-2Sn?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, Ti-5Al-2.5Fe or Ti-6Al-6V-2Sn?
Ti-5Al-2.5Fe. Its weldability rates good (65/100) against fair (35/100) for Ti-6Al-6V-2Sn.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti-5Al-2.5Fe and Ti-6Al-6V-2Sn 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.