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Titanium Grade 1 vs Ti Grade 36

Titanium · grade comparison

Titanium Grade 1 and Ti Grade 36 are both titanium grades. Ti Grade 36 is the stronger of the two: yield strength 340 MPa (49.3 ksi) against 220 MPa (31.9 ksi) for Grade 1, about 55% more; tensile strength follows at 420 MPa (60.9 ksi) vs 300 MPa (43.5 ksi). In exchange, Grade 1 is the more ductile: elongation 30% versus 25% for Ti Grade 36, and Ti Grade 36 is harder (138 HB vs 120 HB). Grade 1 is lighter (4.51 g/cm³ vs 5.7 g/cm³ for Ti Grade 36) and Grade 1 is stiffer (103 GPa vs 62 GPa). On the shop floor, Grade 1 machines more easily (fair vs poor), Grade 1 welds better (excellent vs very good), and Ti Grade 36 sits in a lower cost tier (high, $$$$) than Grade 1 (specialty, $$$$$).

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

Ti Grade 36Choose it when strength drives the design, or when cost is the deciding factor.

Grade 1 vs Ti Grade 36: properties

Grade 1Ti Grade 36

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

103 GPa14.9 Msi
62 GPa9 Msi

Shear Modulus

40 GPa5.8 Msi
23 GPa3.3 Msi

Bulk Modulus

110 GPa16 Msi
69 GPa10 Msi

Poisson's Ratio

0.34
0.35

Tensile Strength (Ultimate)

300 MPa43.5 ksi
420 MPa60.9 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
340 MPa49.3 ksi

Elongation at Break

30%
25%

Reduction in Area

55%
60%

Compressive Strength

250 MPa36.3 ksi
350 MPa50.8 ksi

Shear Strength

240 MPa34.8 ksi
280 MPa40.6 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
220 MPa31.9 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
—

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

120 HB
138 HB

Hardness, Rockwell B

70 HRB
78 HRB

Hardness, Vickers

125 HV
145 HV

Physical

Density and transition temperatures.

Density

4.51 g/cm³0.16 lb/in³
5.7 g/cm³0.21 lb/in³

Melting Point (Solidus)

1,670°C3,038 °F
1,720°C3,128 °F

Liquidus Temperature

1,670°C3,038 °F
1,810°C3,290 °F

Thermal

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

Thermal Conductivity

20 W/m·K11.6 BTU/hr·ft·°F
10 W/m·K5.8 BTU/hr·ft·°F

Specific Heat Capacity

523 J/kg·K0.12 BTU/lb·°F
405 J/kg·K0.1 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8.6 µm/m·K4.8 µin/in·°F
8 µm/m·K4.4 µin/in·°F

Latent Heat of Fusion

295 J/g127 BTU/lb
340 J/g146 BTU/lb

Min Service Temperature

-196°C-321 °F
-253°C-423 °F

Same in both: Max Service Temperature (continuous) 300°C572 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.6 % IACS
2.9 % IACS

Electrical Resistivity

4.8×10⁻⁷ Ω·m18.9 µΩ·in
6×10⁻⁷ Ω·m23.6 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
92 / 100

Manufacturability

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

Machinability

42 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
20%

Weldability

90 / 100
80 / 100

Formability (cold)

82 / 100
92 / 100

Brazeability / Solderability

40 / 100
45 / 100

Same in both: Castability 35 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

650 MJ/kg279,450 BTU/lb
720 MJ/kg309,545 BTU/lb

Embodied Carbon (primary production)

42 kg CO₂/kg
46 kg CO₂/kg

Embodied Water

600 L/kg71.9 gal/lb
900 L/kg108 gal/lb

Typical Recycled Content

25%
20%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
74 kN·m/kg

Specific Stiffness (E / density)

22.8 MN·m/kg
10.9 MN·m/kg

Modulus of Resilience

235 kJ/m³
932 kJ/m³

Thermal Diffusivity

8.5 mm²/s
4.3 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 36

Manufacturing and finishing

CapabilityGrade 1Ti Grade 36
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 36 — frequently asked

Is Ti Grade 36 stronger than Grade 1?

Yes. Ti Grade 36 has a typical yield strength of 340 MPa (49.3 ksi) against 220 MPa (31.9 ksi) for Grade 1 — about 55% more. Tensile strength is 420 MPa (60.9 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, Grade 1 or Ti Grade 36?

Ti Grade 36 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 36?

Grade 1. Its machinability rates fair (42/100) against poor (25/100) for Ti Grade 36; for welding the order is Grade 1 first (excellent, 90/100) then Ti Grade 36 (very good, 80/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 1 and Ti Grade 36 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.