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Titanium Grade 1 vs Ti Grade 30

Titanium · grade comparison

Titanium Grade 1 and Ti Grade 30 are both titanium grades. Ti Grade 30 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 440 MPa (63.8 ksi) vs 300 MPa (43.5 ksi). Ti Grade 30 is harder — 160 HB against 120 HB for Grade 1 — which matters for wear surfaces and threads. Grade 1 conducts heat better (20 W/m·K vs 16.5 W/m·K). On the shop floor, Grade 1 forms better (82 vs 70 out of 100) and Ti Grade 30 sits in a lower cost tier (high, $$$$) than Grade 1 (specialty, $$$$$).

Ti Grade 30Choose it when strength drives the design, or when surface hardness matters.

Grade 1 vs Ti Grade 30: properties

Grade 1Ti Grade 30

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
440 MPa63.8 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
330 MPa47.9 ksi

Elongation at Break

30%
28%

Reduction in Area

55%
45%

Compressive Strength

250 MPa36.3 ksi
—

Shear Strength

240 MPa34.8 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
250 MPa36.3 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
70 MPa·√m63.7 ksi·√in

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
35 J25.8 ft·lbf

Hardness, Brinell

120 HB
160 HB

Hardness, Rockwell B

70 HRB
80 HRB

Hardness, Vickers

125 HV
170 HV

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

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,670°C3,038 °F
1,650°C3,002 °F

Liquidus Temperature

1,670°C3,038 °F
1,665°C3,029 °F

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

20 W/m·K11.6 BTU/hr·ft·°F
16.5 W/m·K9.5 BTU/hr·ft·°F

Latent Heat of Fusion

295 J/g127 BTU/lb
320 J/g138 BTU/lb

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 -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.6 % IACS
3.1 % IACS

Electrical Resistivity

4.8×10⁻⁷ Ω·m18.9 µΩ·in
5.6×10⁻⁷ Ω·m22 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

93 / 100
96 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.05 V

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%
35%

Weldability

90 / 100
85 / 100

Formability (cold)

82 / 100
70 / 100

Castability

35 / 100
40 / 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
700 MJ/kg300,946 BTU/lb

Embodied Carbon (primary production)

42 kg CO₂/kg
44 kg CO₂/kg

Embodied Water

600 L/kg71.9 gal/lb
700 L/kg83.9 gal/lb

Typical Recycled Content

25%
20%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
98 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 mm²/s

Thermal Shock Resistance Index

7
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.

3005007001,0004.555.5Density (g/cm³)Yield strength (MPa) — log scaleGrade 1Ti Grade 30

Manufacturing and finishing

CapabilityGrade 1Ti Grade 30
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 30 — frequently asked

Is Ti Grade 30 stronger than Grade 1?

Yes. Ti Grade 30 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 440 MPa (63.8 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, Grade 1 or Ti Grade 30?

Ti Grade 30 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 30?

Grade 1, by a small margin. Both rate fair for machinability — 42/100 against 35/100 for Ti Grade 30; for welding the order is Grade 1 first (excellent, 90/100) then Ti Grade 30 (excellent, 85/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 1 and Ti Grade 30 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.