FabDigitFabDigit

Titanium Ti-12Mo-6Zr-2Fe vs Ti-5553

Titanium · grade comparison

Titanium Ti-12Mo-6Zr-2Fe and Ti-5553 are both titanium grades. Ti-12Mo-6Zr-2Fe is the stronger of the two: yield strength 990 MPa (144 ksi) against 900 MPa (131 ksi) for Ti-5553, about 10% more; tensile strength follows at 1,060 MPa (154 ksi) vs 960 MPa (139 ksi). Ti-12Mo-6Zr-2Fe is the more ductile: elongation 19% versus 16% for Ti-5553. Ti-5553 is lighter (4.65 g/cm³ vs 5 g/cm³ for Ti-12Mo-6Zr-2Fe) and Ti-5553 is stiffer (105 GPa vs 80 GPa). On the shop floor, Ti-12Mo-6Zr-2Fe welds better (good vs fair) and Ti-12Mo-6Zr-2Fe sits in a lower cost tier (high, $$$$) than Ti-5553 (specialty, $$$$$).

Ti-12Mo-6Zr-2FeChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

Ti-5553Choose it when weight is the constraint, or when the part sees heat.

Ti-12Mo-6Zr-2Fe vs Ti-5553: properties

Ti-12Mo-6Zr-2FeTi-5553

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

80 GPa11.6 Msi
105 GPa15.2 Msi

Shear Modulus

30 GPa4.4 Msi
40 GPa5.8 Msi

Bulk Modulus

90 GPa13.1 Msi
105 GPa15.2 Msi

Tensile Strength (Ultimate)

1,060 MPa154 ksi
960 MPa139 ksi

Yield Strength (0.2% offset)

990 MPa144 ksi
900 MPa131 ksi

Elongation at Break

19%
16%

Reduction in Area

45%
40%

Compressive Strength

1,020 MPa148 ksi
940 MPa136 ksi

Shear Strength

640 MPa92.8 ksi
600 MPa87 ksi

Fatigue Strength (Endurance Limit)

550 MPa79.8 ksi
480 MPa69.6 ksi

Fracture Toughness (K_IC)

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

Hardness, Rockwell C

32 HRC
33 HRC

Hardness, Vickers

310 HV
320 HV

Charpy V-Notch Impact (RT)

—
20 J14.8 ft·lbf

Hardness, Brinell

—
305 HB

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

5 g/cm³0.18 lb/in³
4.65 g/cm³0.17 lb/in³

Melting Point (Solidus)

1,620°C2,948 °F
1,580°C2,876 °F

Liquidus Temperature

1,680°C3,056 °F
1,640°C2,984 °F

Thermal

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

Thermal Conductivity

6.8 W/m·K3.9 BTU/hr·ft·°F
7 W/m·K4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

9 µm/m·K5 µin/in·°F
9.3 µm/m·K5.2 µin/in·°F

Max Service Temperature (continuous)

250°C482 °F
300°C572 °F

Latent Heat of Fusion

—
360 J/g155 BTU/lb

Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.3×10⁻⁶ Ω·m51.2 µΩ·in
1.55×10⁻⁶ Ω·m61 µΩ·in

Electrical Conductivity

—
1.1 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

93 / 100
88 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V

Manufacturability

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

Machinability

15 / 100
16 / 100

Machinability Rating (AISI 1212 = 100 %)

15%
16%

Weldability

60 / 100
35 / 100

Formability (cold)

70 / 100
30 / 100

Castability

35 / 100
25 / 100

Brazeability / Solderability

40 / 100
30 / 100

Polishability

80 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

660 MJ/kg283,749 BTU/lb
650 MJ/kg279,450 BTU/lb

Embodied Water

600 L/kg71.9 gal/lb
800 L/kg95.9 gal/lb

Typical Recycled Content

10%
25%

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

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

212 kN·m/kg
206 kN·m/kg

Specific Stiffness (E / density)

16 MN·m/kg
22.6 MN·m/kg

Modulus of Resilience

6,126 kJ/m³
3,857 kJ/m³

Thermal Diffusivity

2.7 mm²/s
3 mm²/s

Thermal Shock Resistance Index

10
7

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 scaleTi-5553Ti-12Mo-6Zr-2Fe

Manufacturing and finishing

CapabilityTi-12Mo-6Zr-2FeTi-5553
CNC machining—Yes
Sheet metal—Yes
Default condition—O
Relative cost$$$$ High$$$$$ Specialty
Min. machined wall—1 mm
Best machined surface—Ra 1.6 µm
AlCrN—Yes
AlTiN—Yes
Anodizing Type II—Yes
CVD Al2O3—Yes
CVD TiCN—Yes
CVD TiN—Yes
Cerakote—Yes
CrN—Yes
DLC—Yes
Electropolishing—Yes
HVOF Coating—Yes
MoS2—Yes
Multilayer CVD—Yes
TiAlN—Yes
TiB2—Yes
TiCN—Yes
TiN—Yes
WC/C—Yes

They share 1 finish: Plasma Spray.

Ti-12Mo-6Zr-2Fe vs Ti-5553 — frequently asked

Is Ti-12Mo-6Zr-2Fe stronger than Ti-5553?

Yes. Ti-12Mo-6Zr-2Fe has a typical yield strength of 990 MPa (144 ksi) against 900 MPa (131 ksi) for Ti-5553 — about 10% more. Tensile strength is 1,060 MPa (154 ksi) vs 960 MPa (139 ksi).

Which is cheaper, Ti-12Mo-6Zr-2Fe or Ti-5553?

Ti-12Mo-6Zr-2Fe is the lower-cost material: it sits in the high tier ($$$$) while Ti-5553 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, Ti-12Mo-6Zr-2Fe or Ti-5553?

Ti-12Mo-6Zr-2Fe. Its weldability rates good (60/100) against fair (35/100) for Ti-5553.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Ti-12Mo-6Zr-2Fe and Ti-5553 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.