Titanium Grade 12 vs Grade 3
Titanium · grade comparison
Titanium Grade 12 and Grade 3 are both titanium grades, both corrosion resistant ti. Grade 12 is the stronger of the two: tensile strength 550 MPa (79.8 ksi) against 500 MPa (72.5 ksi) for Grade 3, about 10% more. Grade 12 conducts heat better (19 W/m·K vs 16.4 W/m·K).
Grade 12Choose it when strength drives the design.
Grade 12 vs Grade 3: 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
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Same in both: Elastic (Young's) Modulus 103 GPa14.9 Msi · Bulk Modulus 110 GPa16 Msi · Yield Strength (0.2% offset) 420 MPa60.9 ksi · Compressive Strength 450 MPa65.3 ksi · Fracture Toughness (K_IC) 70 MPa·√m63.7 ksi·√in · Hardness, Brinell 200 HB · Hardness, Rockwell B 93 HRB · Hardness, Vickers 210 HV
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
Same in both: Density 4.51 g/cm³0.16 lb/in³
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
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 %)
Castability
Polishability
Same in both: Weldability 85 / 100 · Formability (cold) 55 / 100 · Brazeability / Solderability 40 / 100
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)
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 22.8 MN·m/kg · Modulus of Resilience 856 kJ/m³
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 12 | Grade 3 |
|---|---|---|
| Default condition | O | O |
| Relative cost | $$$$$ Specialty | $$$$$ Specialty |
| Min. machined wall | 1 mm | 1 mm |
| Best machined surface | Ra 1.6 µm | Ra 1.6 µm |
Both are offered for CNC machining and Sheet metal. Both take the same 20 finishes: AlCrN, AlTiN, Anodizing Type II, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, CrN, DLC, Electropolishing, HVOF Coating, MoS2 and 8 more.
Grade 12 vs Grade 3 — frequently asked
Is Grade 12 stronger than Grade 3?
Yes. Grade 12 has a typical tensile strength of 550 MPa (79.8 ksi) against 500 MPa (72.5 ksi) for Grade 3 — about 10% more.
Which is cheaper, Grade 12 or Grade 3?
Both sit in the same relative cost tier ($$$$$, specialty); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Grade 12 or Grade 3?
Grade 3. Its machinability rates fair (35/100) against poor (30/100) for Grade 12.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Grade 12 and Grade 3 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.