Titanium Grade 2 vs Ti Grade 27
Titanium · grade comparison
Titanium Grade 2 and Ti Grade 27 are both titanium grades. Grade 2 is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 230 MPa (33.4 ksi) for Ti Grade 27, about 65% more; tensile strength follows at 440 MPa (63.8 ksi) vs 330 MPa (47.9 ksi). In exchange, Ti Grade 27 is the more ductile: elongation 32% versus 28% for Grade 2, and Grade 2 is harder (150 HB vs 120 HB). Ti Grade 27 conducts heat better (20.8 W/m·K vs 16.4 W/m·K). On the shop floor, Ti Grade 27 sits in a lower cost tier (high, $$$$) than Grade 2 (specialty, $$$$$).
Grade 2Choose it when strength drives the design.
Ti Grade 27Choose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
Grade 2 vs Ti Grade 27: 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
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 B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 103 GPa14.9 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Melting Point (Solidus)
Same in both: Density 4.51 g/cm³0.16 lb/in³ · Liquidus Temperature 1,670°C3,038 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Latent Heat of Fusion
Same in both: Specific Heat Capacity 523 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°F · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -250°C-418 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 93 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability 40 / 100 · Machinability Rating (AISI 1212 = 100 %) 40% · Weldability 90 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Same in both: Embodied Energy (primary production) 650 MJ/kg279,450 BTU/lb · Typical Recycled Content 25%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Specific Stiffness (E / density) 22.8 MN·m/kg · Thermal Shock Resistance Index 8
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 2 | Ti Grade 27 |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| Default condition | O | — |
| Relative cost | $$$$$ Specialty | $$$$ High |
| Min. machined wall | 1 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| AlCrN | Yes | — |
| AlTiN | Yes | — |
| Anodizing Type II | Yes | — |
| CVD Al2O3 | Yes | — |
| CVD TiCN | Yes | — |
| CVD TiN | Yes | — |
| Cerakote | Yes | — |
| CrN | Yes | — |
| DLC | Yes | — |
| Electropolishing | Yes | — |
| HVOF Coating | Yes | — |
| MoS2 | Yes | — |
| Multilayer CVD | Yes | — |
| TiAlN | Yes | — |
| TiB2 | Yes | — |
| TiCN | Yes | — |
| TiN | Yes | — |
| WC/C | Yes | — |
They share 1 finish: Plasma Spray.
Grade 2 vs Ti Grade 27 — frequently asked
Is Grade 2 stronger than Ti Grade 27?
Yes. Grade 2 has a typical yield strength of 380 MPa (55.1 ksi) against 230 MPa (33.4 ksi) for Ti Grade 27 — about 65% more. Tensile strength is 440 MPa (63.8 ksi) vs 330 MPa (47.9 ksi).
Which is cheaper, Grade 2 or Ti Grade 27?
Ti Grade 27 is the lower-cost material: it sits in the high tier ($$$$) while Grade 2 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
When should I choose Grade 2 over Ti Grade 27?
Pick Grade 2 when strength drives the design. Pick Ti Grade 27 when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Grade 2 and Ti Grade 27 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.