Titanium Grade 1 vs Grade 2
Titanium · grade comparison
Titanium Grade 1 and Grade 2 are both titanium grades, both corrosion resistant ti. Grade 2 is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 220 MPa (31.9 ksi) for Grade 1, about 73% more; tensile strength follows at 440 MPa (63.8 ksi) vs 300 MPa (43.5 ksi). Grade 2 is harder — 150 HB against 120 HB for Grade 1 — which matters for wear surfaces and threads. Grade 1 conducts heat better (20 W/m·K vs 16.4 W/m·K).
Grade 2Choose it when strength drives the design, or when surface hardness matters.
Grade 1 vs Grade 2: 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
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 · Bulk Modulus 110 GPa16 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
Min Service Temperature
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
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 93 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: 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
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 22.8 MN·m/kg
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 1 | Grade 2 |
|---|---|---|
| Default condition | O | O |
| Relative cost | $$$$$ Specialty | $$$$$ Specialty |
| Min. machined wall | 1 mm | 1 mm |
| Best machined surface | Ra 1.6 µm | Ra 1.6 µm |
Both are offered for CNC machining and Sheet metal. Both take the same 20 finishes: AlCrN, AlTiN, Anodizing Type II, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, CrN, DLC, Electropolishing, HVOF Coating, MoS2 and 8 more.
Grade 1 vs Grade 2 — frequently asked
Is Grade 2 stronger than Grade 1?
Yes. Grade 2 has a typical yield strength of 380 MPa (55.1 ksi) against 220 MPa (31.9 ksi) for Grade 1 — about 73% more. Tensile strength is 440 MPa (63.8 ksi) vs 300 MPa (43.5 ksi).
Which is cheaper, Grade 1 or Grade 2?
Both sit in the same relative cost tier ($$$$$, specialty); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose Grade 1 over Grade 2?
Pick Grade 2 when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Grade 1 and Grade 2 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.