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Titanium Grade 1 vs Ti Grade 19

Titanium · grade comparison

Titanium Grade 1 and Ti Grade 19 are both titanium grades. Ti Grade 19 is the stronger of the two: yield strength 860 MPa (125 ksi) against 220 MPa (31.9 ksi) for Grade 1, about 3.9 times as much; tensile strength follows at 930 MPa (135 ksi) vs 300 MPa (43.5 ksi). In exchange, Grade 1 is the more ductile: elongation 30% versus 18% for Ti Grade 19, and Ti Grade 19 is harder (285 HB vs 120 HB). Grade 1 is lighter (4.51 g/cm³ vs 4.82 g/cm³ for Ti Grade 19) and Grade 1 is stiffer (103 GPa vs 96 GPa). On the shop floor, Grade 1 machines more easily (fair vs poor), Grade 1 welds better (excellent vs good), and Ti Grade 19 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 19Choose it when strength drives the design, or when cost is the deciding factor.

Grade 1 vs Ti Grade 19: properties

Grade 1Ti Grade 19

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

103 GPa14.9 Msi
96 GPa13.9 Msi

Bulk Modulus

110 GPa16 Msi
86 GPa12.5 Msi

Poisson's Ratio

0.34
0.3

Tensile Strength (Ultimate)

300 MPa43.5 ksi
930 MPa135 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
860 MPa125 ksi

Elongation at Break

30%
18%

Reduction in Area

55%
48%

Compressive Strength

250 MPa36.3 ksi
880 MPa128 ksi

Shear Strength

240 MPa34.8 ksi
590 MPa85.6 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
450 MPa65.3 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
85 MPa·√m77.4 ksi·√in

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
27 J19.9 ft·lbf

Hardness, Brinell

120 HB
285 HB

Hardness, Rockwell B

70 HRB
—

Hardness, Vickers

125 HV
300 HV

Hardness, Rockwell C

—
30 HRC

Same in both: Shear Modulus 40 GPa5.8 Msi

Physical

Density and transition temperatures.

Density

4.51 g/cm³0.16 lb/in³
4.82 g/cm³0.17 lb/in³

Melting Point (Solidus)

1,670°C3,038 °F
1,600°C2,912 °F

Liquidus Temperature

1,670°C3,038 °F
1,650°C3,002 °F

Thermal

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

Thermal Conductivity

20 W/m·K11.6 BTU/hr·ft·°F
7.6 W/m·K4.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

295 J/g127 BTU/lb
365 J/g157 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
260°C500 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

3.6 % IACS
1.1 % IACS

Electrical Resistivity

4.8×10⁻⁷ Ω·m18.9 µΩ·in
1.6×10⁻⁶ Ω·m63 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
88 / 100

Manufacturability

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

Machinability

42 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
18%

Weldability

90 / 100
65 / 100

Formability (cold)

82 / 100
70 / 100

Castability

35 / 100
25 / 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
45 kg CO₂/kg

Embodied Water

600 L/kg71.9 gal/lb
1,600 L/kg192 gal/lb

Typical Recycled Content

25%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
193 kN·m/kg

Specific Stiffness (E / density)

22.8 MN·m/kg
19.9 MN·m/kg

Modulus of Resilience

235 kJ/m³
3,852 kJ/m³

Thermal Diffusivity

8.5 mm²/s
3.2 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 19

Manufacturing and finishing

CapabilityGrade 1Ti Grade 19
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 19 — frequently asked

Is Ti Grade 19 stronger than Grade 1?

Yes. Ti Grade 19 has a typical yield strength of 860 MPa (125 ksi) against 220 MPa (31.9 ksi) for Grade 1 — about 3.9 times as much. Tensile strength is 930 MPa (135 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, Grade 1 or Ti Grade 19?

Ti Grade 19 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 19?

Grade 1. Its machinability rates fair (42/100) against poor (20/100) for Ti Grade 19; for welding the order is Grade 1 first (excellent, 90/100) then Ti Grade 19 (good, 65/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 1 and Ti Grade 19 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.