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Titanium Grade 1 vs Ti Grade 26

Titanium · grade comparison

Titanium Grade 1 and Ti Grade 26 are both titanium grades. Ti Grade 26 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 430 MPa (62.4 ksi) vs 300 MPa (43.5 ksi). In exchange, Grade 1 is the more ductile: elongation 30% versus 24% for Ti Grade 26, and Ti Grade 26 is harder (160 HB vs 120 HB). Grade 1 conducts heat better (20 W/m·K vs 16.4 W/m·K). On the shop floor, Ti Grade 26 sits in a lower cost tier (high, $$$$) than Grade 1 (specialty, $$$$$).

Grade 1Choose it when the part is bent, formed or impact-loaded.

Ti Grade 26Choose it when strength drives the design, or when cost is the deciding factor.

Grade 1 vs Ti Grade 26: properties

Grade 1Ti Grade 26

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
430 MPa62.4 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
330 MPa47.9 ksi

Elongation at Break

30%
24%

Reduction in Area

55%
45%

Compressive Strength

250 MPa36.3 ksi
—

Shear Strength

240 MPa34.8 ksi
310 MPa45 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
210 MPa30.5 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
165 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
1,660°C3,020 °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
16.4 W/m·K9.5 BTU/hr·ft·°F

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 · Latent Heat of Fusion 295 J/g127 BTU/lb · 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).

Galvanic Potential (seawater, vs SCE)

-0.05 V
-0.1 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%
25%

Formability (cold)

82 / 100
75 / 100

Castability

35 / 100
40 / 100

Same in both: Weldability 90 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

42 kg CO₂/kg
40 kg CO₂/kg

Same in both: Embodied Energy (primary production) 650 MJ/kg279,450 BTU/lb · Embodied Water 600 L/kg71.9 gal/lb · Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
95 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 26

Manufacturing and finishing

CapabilityGrade 1Ti Grade 26
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 26 — frequently asked

Is Ti Grade 26 stronger than Grade 1?

Yes. Ti Grade 26 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 430 MPa (62.4 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, Grade 1 or Ti Grade 26?

Ti Grade 26 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 26?

Grade 1, by a small margin. Both rate fair for machinability — 42/100 against 35/100 for Ti Grade 26.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 1 and Ti Grade 26 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.