Titanium Grade 9 vs Ti-6Al-6V-2Sn
Titanium · grade comparison
Titanium Grade 9 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 570 MPa (82.7 ksi) for Grade 9, about 72% more; tensile strength follows at 1,050 MPa (152 ksi) vs 690 MPa (100 ksi). In exchange, Grade 9 is the more ductile: elongation 20% versus 14% for Ti-6Al-6V-2Sn, and Ti-6Al-6V-2Sn is harder (340 HB vs 250 HB). Ti-6Al-6V-2Sn is stiffer (110 GPa vs 100 GPa) and Grade 9 conducts heat better (7.6 W/m·K vs 6.6 W/m·K). On the shop floor, Grade 9 machines more easily (28 vs 17 out of 100) and Grade 9 welds better (very good vs fair).
Grade 9Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
Ti-6Al-6V-2SnChoose it when strength drives the design.
Grade 9 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.
Elastic (Young's) Modulus
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
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
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
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 544 J/kg·K0.13 BTU/lb·°F · Latent Heat of Fusion 365 J/g157 BTU/lb
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.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Polishability
Same in both: Castability 30 / 100 · Brazeability / Solderability 45 / 100
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 | Grade 9 | Ti-6Al-6V-2Sn |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| Default condition | O | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | 1 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| AlCrN | Yes | — |
| AlTiN | Yes | — |
| Anodizing Type II | Yes | — |
| CVD Al2O3 | Yes | — |
| CVD TiCN | Yes | — |
| CVD TiN | Yes | — |
| Cerakote | Yes | — |
| CrN | Yes | — |
| DLC | Yes | — |
| Electropolishing | Yes | — |
| HVOF Coating | Yes | — |
| MoS2 | Yes | — |
| Multilayer CVD | Yes | — |
| TiAlN | Yes | — |
| TiB2 | Yes | — |
| TiCN | Yes | — |
| TiN | Yes | — |
| WC/C | Yes | — |
They share 1 finish: Plasma Spray.
Grade 9 vs Ti-6Al-6V-2Sn — frequently asked
Is Ti-6Al-6V-2Sn stronger than Grade 9?
Yes. Ti-6Al-6V-2Sn has a typical yield strength of 980 MPa (142 ksi) against 570 MPa (82.7 ksi) for Grade 9 — about 72% more. Tensile strength is 1,050 MPa (152 ksi) vs 690 MPa (100 ksi).
Which is cheaper, Grade 9 or Ti-6Al-6V-2Sn?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Grade 9 or Ti-6Al-6V-2Sn?
Grade 9, by a small margin. Both rate poor for machinability — 28/100 against 17/100 for Ti-6Al-6V-2Sn; for welding the order is Grade 9 first (very good, 80/100) then Ti-6Al-6V-2Sn (fair, 35/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Grade 9 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.