Titanium Ti-5553 vs Ti-8Mo-8V-2Fe-3Al
Titanium · grade comparison
Titanium Ti-5553 and Ti-8Mo-8V-2Fe-3Al are both titanium grades. Ti-8Mo-8V-2Fe-3Al is the stronger of the two: yield strength 1,240 MPa (180 ksi) against 900 MPa (131 ksi) for Ti-5553, about 38% more; tensile strength follows at 1,300 MPa (189 ksi) vs 960 MPa (139 ksi). In exchange, Ti-5553 is the more ductile: elongation 16% versus 8% for Ti-8Mo-8V-2Fe-3Al, and Ti-8Mo-8V-2Fe-3Al is harder (370 HB vs 305 HB). Ti-5553 is lighter (4.65 g/cm³ vs 4.9 g/cm³ for Ti-8Mo-8V-2Fe-3Al). On the shop floor, Ti-8Mo-8V-2Fe-3Al sits in a lower cost tier (high, $$$$) than Ti-5553 (specialty, $$$$$).
Ti-5553Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
Ti-8Mo-8V-2Fe-3AlChoose it when strength drives the design, or when cost is the deciding factor.
Ti-5553 vs Ti-8Mo-8V-2Fe-3Al: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all titanium grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all titanium grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Latent Heat of Fusion 360 J/g155 BTU/lb
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
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
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Weldability 35 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | Ti-5553 | Ti-8Mo-8V-2Fe-3Al |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| Default condition | O | — |
| Relative cost | $$$$$ Specialty | $$$$ High |
| Min. machined wall | 1 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| AlCrN | Yes | — |
| AlTiN | Yes | — |
| Anodizing Type II | Yes | — |
| CVD Al2O3 | Yes | — |
| CVD TiCN | Yes | — |
| CVD TiN | Yes | — |
| Cerakote | Yes | — |
| CrN | Yes | — |
| DLC | Yes | — |
| Electropolishing | Yes | — |
| HVOF Coating | Yes | — |
| MoS2 | Yes | — |
| Multilayer CVD | Yes | — |
| TiAlN | Yes | — |
| TiB2 | Yes | — |
| TiCN | Yes | — |
| TiN | Yes | — |
| WC/C | Yes | — |
They share 1 finish: Plasma Spray.
Ti-5553 vs Ti-8Mo-8V-2Fe-3Al — frequently asked
Is Ti-8Mo-8V-2Fe-3Al stronger than Ti-5553?
Yes. Ti-8Mo-8V-2Fe-3Al has a typical yield strength of 1,240 MPa (180 ksi) against 900 MPa (131 ksi) for Ti-5553 — about 38% more. Tensile strength is 1,300 MPa (189 ksi) vs 960 MPa (139 ksi).
Which is cheaper, Ti-5553 or Ti-8Mo-8V-2Fe-3Al?
Ti-8Mo-8V-2Fe-3Al is the lower-cost material: it sits in the high tier ($$$$) while Ti-5553 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
When should I choose Ti-5553 over Ti-8Mo-8V-2Fe-3Al?
Pick Ti-5553 when the part is bent, formed or impact-loaded, or when weight is the constraint. Pick Ti-8Mo-8V-2Fe-3Al when strength drives the design, or when cost is the deciding factor.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti-5553 and Ti-8Mo-8V-2Fe-3Al 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.