FabDigitFabDigit

Titanium ERTi-2 vs ERTi-24

Titanium · grade comparison

Titanium ERTi-2 and ERTi-24 are both titanium grades. ERTi-24 is the stronger of the two: yield strength 860 MPa (125 ksi) against 380 MPa (55.1 ksi) for ERTi-2, about 126% more; tensile strength follows at 930 MPa (135 ksi) vs 480 MPa (69.6 ksi). In exchange, ERTi-2 is the more ductile: elongation 22% versus 10% for ERTi-24, and ERTi-24 is harder (330 HB vs 155 HB). ERTi-24 is stiffer (114 GPa vs 105 GPa) and ERTi-24 runs hotter in service (350°C vs 315°C continuous). On the shop floor, ERTi-2 machines more easily (fair vs poor) and ERTi-2 welds better (excellent vs very good).

ERTi-2Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

ERTi-24Choose it when strength drives the design, or when the part sees heat.

ERTi-2 vs ERTi-24: properties

ERTi-2ERTi-24

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

105 GPa15.2 Msi
114 GPa16.5 Msi

Shear Modulus

45 GPa6.5 Msi
44 GPa6.4 Msi

Tensile Strength (Ultimate)

480 MPa69.6 ksi
930 MPa135 ksi

Yield Strength (0.2% offset)

380 MPa55.1 ksi
860 MPa125 ksi

Elongation at Break

22%
10%

Reduction in Area

45%
25%

Compressive Strength

400 MPa58 ksi
1,070 MPa155 ksi

Shear Strength

330 MPa47.9 ksi
580 MPa84.1 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
350 MPa50.8 ksi

Fracture Toughness (K_IC)

70 MPa·√m63.7 ksi·√in
65 MPa·√m59.2 ksi·√in

Charpy V-Notch Impact (RT)

45 J33.2 ft·lbf
18 J13.3 ft·lbf

Hardness, Brinell

155 HB
330 HB

Hardness, Rockwell B

80 HRB
—

Hardness, Vickers

160 HV
350 HV

Hardness, Rockwell C

—
34 HRC

Same in both: Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Density

4.51 g/cm³0.16 lb/in³
4.43 g/cm³0.16 lb/in³

Melting Point (Solidus)

1,660°C3,020 °F
1,604°C2,919 °F

Liquidus Temperature

1,670°C3,038 °F
1,660°C3,020 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

16.4 W/m·K9.5 BTU/hr·ft·°F
6.7 W/m·K3.9 BTU/hr·ft·°F

Specific Heat Capacity

523 J/kg·K0.12 BTU/lb·°F
560 J/kg·K0.13 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8.6 µm/m·K4.8 µin/in·°F
8.7 µm/m·K4.8 µin/in·°F

Latent Heat of Fusion

325 J/g140 BTU/lb
365 J/g157 BTU/lb

Max Service Temperature (continuous)

315°C599 °F
350°C662 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.1 % IACS
1 % IACS

Electrical Resistivity

5.6×10⁻⁷ Ω·m22 µΩ·in
1.7×10⁻⁶ Ω·m66.9 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.1 V
-0.05 V

Corrosion Resistance

92 / 100
94 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

40 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
22%

Weldability

90 / 100
80 / 100

Formability (cold)

70 / 100
30 / 100

Brazeability / Solderability

45 / 100
40 / 100

Castability

—
55 / 100

Same in both: Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

650 MJ/kg279,450 BTU/lb
700 MJ/kg300,946 BTU/lb

Embodied Carbon (primary production)

40 kg CO₂/kg
42 kg CO₂/kg

Embodied Water

800 L/kg95.9 gal/lb
900 L/kg108 gal/lb

Typical Recycled Content

20%
15%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

106 kN·m/kg
210 kN·m/kg

Specific Stiffness (E / density)

23.3 MN·m/kg
25.7 MN·m/kg

Modulus of Resilience

688 kJ/m³
3,244 kJ/m³

Thermal Diffusivity

7 mm²/s
2.7 mm²/s

Thermal Shock Resistance Index

9
6

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.

3005007001,0004.555.5Density (g/cm³)Yield strength (MPa) — log scaleERTi-2ERTi-24

Manufacturing and finishing

CapabilityERTi-2ERTi-24
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

ERTi-2 vs ERTi-24 — frequently asked

Is ERTi-24 stronger than ERTi-2?

Yes. ERTi-24 has a typical yield strength of 860 MPa (125 ksi) against 380 MPa (55.1 ksi) for ERTi-2 — about 126% more. Tensile strength is 930 MPa (135 ksi) vs 480 MPa (69.6 ksi).

Which is cheaper, ERTi-2 or ERTi-24?

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, ERTi-2 or ERTi-24?

ERTi-2. Its machinability rates fair (40/100) against poor (20/100) for ERTi-24; for welding the order is ERTi-2 first (excellent, 90/100) then ERTi-24 (very good, 80/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in ERTi-2 and ERTi-24 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.