Titanium Ti-5Al-5Sn-2Zr-2Mo vs Ti-6Al-2Sn-4Zr-2Mo-0.1Si
Titanium · grade comparison
Titanium Ti-5Al-5Sn-2Zr-2Mo and Ti-6Al-2Sn-4Zr-2Mo-0.1Si are both titanium grades. Both yield at about 950 MPa — strength does not separate them. Ti-6Al-2Sn-4Zr-2Mo-0.1Si is the more ductile: elongation 15% versus 12% for Ti-5Al-5Sn-2Zr-2Mo, and Ti-5Al-5Sn-2Zr-2Mo is harder (34 HRC vs 32 HRC). Ti-5Al-5Sn-2Zr-2Mo conducts electricity better (1.1 % IACS vs 0.87 % IACS). On the shop floor, Ti-6Al-2Sn-4Zr-2Mo-0.1Si welds better (65 vs 55 out of 100).
Ti-6Al-2Sn-4Zr-2Mo-0.1SiChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
Ti-5Al-5Sn-2Zr-2Mo vs Ti-6Al-2Sn-4Zr-2Mo-0.1Si: 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-5Al-5Sn-2Zr-2MoTi-6Al-2Sn-4Zr-2Mo-0.1Si
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk 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, Rockwell C
Hardness, Vickers
Same in both: Poisson's Ratio 0.32 · Hardness, Brinell 320 HB
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)
Same in both: Latent Heat of Fusion 365 J/g157 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
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.
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability 18 / 100 · Machinability Rating (AISI 1212 = 100 %) 18%
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 25%
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-5Sn-2Zr-2Mo | Ti-6Al-2Sn-4Zr-2Mo-0.1Si |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 1 finish: Plasma Spray.
Ti-5Al-5Sn-2Zr-2Mo vs Ti-6Al-2Sn-4Zr-2Mo-0.1Si — frequently asked
What is the difference between Ti-5Al-5Sn-2Zr-2Mo and Ti-6Al-2Sn-4Zr-2Mo-0.1Si?
Titanium Ti-5Al-5Sn-2Zr-2Mo and Ti-6Al-2Sn-4Zr-2Mo-0.1Si are both titanium grades. Both yield at about 950 MPa — strength does not separate them. Ti-6Al-2Sn-4Zr-2Mo-0.1Si is the more ductile: elongation 15% versus 12% for Ti-5Al-5Sn-2Zr-2Mo, and Ti-5Al-5Sn-2Zr-2Mo is harder (34 HRC vs 32 HRC).
Which is cheaper, Ti-5Al-5Sn-2Zr-2Mo or Ti-6Al-2Sn-4Zr-2Mo-0.1Si?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, Ti-5Al-5Sn-2Zr-2Mo or Ti-6Al-2Sn-4Zr-2Mo-0.1Si?
Ti-6Al-2Sn-4Zr-2Mo-0.1Si. Its weldability rates good (65/100) against good (55/100) for Ti-5Al-5Sn-2Zr-2Mo.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti-5Al-5Sn-2Zr-2Mo and Ti-6Al-2Sn-4Zr-2Mo-0.1Si 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.