FabDigitFabDigit

Titanium Grade 1 vs Ti Grade 34

Titanium · grade comparison

Titanium Grade 1 and Ti Grade 34 are both titanium grades. Ti Grade 34 is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 220 MPa (31.9 ksi) for Grade 1, about 50% more; tensile strength follows at 450 MPa (65.3 ksi) vs 300 MPa (43.5 ksi). Ti Grade 34 is harder — 160 HB against 120 HB for Grade 1 — which matters for wear surfaces and threads. Grade 1 conducts electricity better (3.6 % IACS vs 3.1 % IACS). On the shop floor, Grade 1 forms better (82 vs 72 out of 100) and Ti Grade 34 sits in a lower cost tier (high, $$$$) than Grade 1 (specialty, $$$$$).

Ti Grade 34Choose it when strength drives the design, or when surface hardness matters.

Grade 1 vs Ti Grade 34: properties

Grade 1Ti Grade 34

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

103 GPa14.9 Msi
105 GPa15.2 Msi

Shear Modulus

40 GPa5.8 Msi
45 GPa6.5 Msi

Tensile Strength (Ultimate)

300 MPa43.5 ksi
450 MPa65.3 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
330 MPa47.9 ksi

Elongation at Break

30%
28%

Reduction in Area

55%
50%

Compressive Strength

250 MPa36.3 ksi
350 MPa50.8 ksi

Shear Strength

240 MPa34.8 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
240 MPa34.8 ksi

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

120 HB
160 HB

Hardness, Rockwell B

70 HRB
82 HRB

Hardness, Vickers

125 HV
170 HV

Same in both: Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34 · Fracture Toughness (K_IC) 80 MPa·√m72.8 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,670°C3,038 °F
1,650°C3,002 °F

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

20 W/m·K11.6 BTU/hr·ft·°F
19 W/m·K11 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

8.6 µm/m·K4.8 µin/in·°F
9.5 µm/m·K5.3 µin/in·°F

Min Service Temperature

-196°C-321 °F
-250°C-418 °F

Same in both: Latent Heat of Fusion 295 J/g127 BTU/lb · Max Service Temperature (continuous) 300°C572 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.6 % IACS
3.1 % IACS

Electrical Resistivity

4.8×10⁻⁷ Ω·m18.9 µΩ·in
5.5×10⁻⁷ Ω·m21.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
-0.08 V

Corrosion Resistance

93 / 100
96 / 100

Manufacturability

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

Machinability

42 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
28%

Weldability

90 / 100
88 / 100

Formability (cold)

82 / 100
72 / 100

Castability

35 / 100
—

Same in both: Brazeability / Solderability 40 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

650 MJ/kg279,450 BTU/lb
680 MJ/kg292,348 BTU/lb

Embodied Water

600 L/kg71.9 gal/lb
450 L/kg53.9 gal/lb

Typical Recycled Content

25%
20%

Same in both: Embodied Carbon (primary production) 42 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
100 kN·m/kg

Specific Stiffness (E / density)

22.8 MN·m/kg
23.3 MN·m/kg

Modulus of Resilience

235 kJ/m³
519 kJ/m³

Thermal Diffusivity

8.5 mm²/s
7.8 mm²/s

Thermal Shock Resistance Index

7
9

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 scaleGrade 1Ti Grade 34

Manufacturing and finishing

CapabilityGrade 1Ti Grade 34
CNC machiningYes—
Sheet metalYes—
Default conditionO—
Relative cost$$$$$ Specialty$$$$ High
Min. machined wall1 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Anodizing Type IIYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
CrNYes—
DLCYes—
ElectropolishingYes—
HVOF CoatingYes—
MoS2Yes—
Multilayer CVDYes—
TiAlNYes—
TiB2Yes—
TiCNYes—
TiNYes—
WC/CYes—

They share 1 finish: Plasma Spray.

Grade 1 vs Ti Grade 34 — frequently asked

Is Ti Grade 34 stronger than Grade 1?

Yes. Ti Grade 34 has a typical yield strength of 330 MPa (47.9 ksi) against 220 MPa (31.9 ksi) for Grade 1 — about 50% more. Tensile strength is 450 MPa (65.3 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, Grade 1 or Ti Grade 34?

Ti Grade 34 is the lower-cost material: it sits in the high tier ($$$$) while Grade 1 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, Grade 1 or Ti Grade 34?

Grade 1, by a small margin. Both rate fair for machinability — 42/100 against 35/100 for Ti Grade 34.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 1 and Ti Grade 34 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.