Titanium Ti-3Al-8V-6Cr-4Mo-4Zr vs Ti-5553
Titanium · grade comparison
Titanium Ti-3Al-8V-6Cr-4Mo-4Zr and Ti-5553 are both titanium grades. Ti-5553 is the stronger of the two: yield strength 900 MPa (131 ksi) against 850 MPa (123 ksi) for Ti-3Al-8V-6Cr-4Mo-4Zr, about 6% more; tensile strength follows at 960 MPa (139 ksi) vs 900 MPa (131 ksi). In exchange, Ti-3Al-8V-6Cr-4Mo-4Zr is the more ductile: elongation 18% versus 16% for Ti-5553. Ti-5553 is lighter (4.65 g/cm³ vs 4.82 g/cm³ for Ti-3Al-8V-6Cr-4Mo-4Zr) and Ti-5553 is stiffer (105 GPa vs 86 GPa). On the shop floor, Ti-3Al-8V-6Cr-4Mo-4Zr welds better (good vs fair) and Ti-3Al-8V-6Cr-4Mo-4Zr sits in a lower cost tier (high, $$$$) than Ti-5553 (specialty, $$$$$).
Ti-3Al-8V-6Cr-4Mo-4ZrChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
Ti-5553Choose it when strength drives the design, or when weight is the constraint.
Ti-3Al-8V-6Cr-4Mo-4Zr vs Ti-5553: 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
Poisson's Ratio
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, Rockwell C
Hardness, Brinell
Same in both: Hardness, Vickers 320 HV
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)
Latent Heat of Fusion
Max Service Temperature (continuous)
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.
Same in both: Electrical Conductivity 1.1 % IACS · Electrical Resistivity 1.55×10⁻⁶ Ω·m61 µΩ·in
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 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Same in both: Embodied Water 800 L/kg95.9 gal/lb · Typical Recycled Content 25%
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-3Al-8V-6Cr-4Mo-4Zr | Ti-5553 |
|---|---|---|
| CNC machining | — | Yes |
| Sheet metal | — | Yes |
| Default condition | — | O |
| Relative cost | $$$$ High | $$$$$ Specialty |
| Min. machined wall | — | 1 mm |
| Best machined surface | — | Ra 1.6 µm |
| AlCrN | — | Yes |
| AlTiN | — | Yes |
| Anodizing Type II | — | Yes |
| CVD Al2O3 | — | Yes |
| CVD TiCN | — | Yes |
| CVD TiN | — | Yes |
| Cerakote | — | Yes |
| CrN | — | Yes |
| DLC | — | Yes |
| Electropolishing | — | Yes |
| HVOF Coating | — | Yes |
| MoS2 | — | Yes |
| Multilayer CVD | — | Yes |
| TiAlN | — | Yes |
| TiB2 | — | Yes |
| TiCN | — | Yes |
| TiN | — | Yes |
| WC/C | — | Yes |
They share 1 finish: Plasma Spray.
Ti-3Al-8V-6Cr-4Mo-4Zr vs Ti-5553 — frequently asked
Is Ti-5553 stronger than Ti-3Al-8V-6Cr-4Mo-4Zr?
Yes. Ti-5553 has a typical yield strength of 900 MPa (131 ksi) against 850 MPa (123 ksi) for Ti-3Al-8V-6Cr-4Mo-4Zr — about 6% more. Tensile strength is 960 MPa (139 ksi) vs 900 MPa (131 ksi).
Which is cheaper, Ti-3Al-8V-6Cr-4Mo-4Zr or Ti-5553?
Ti-3Al-8V-6Cr-4Mo-4Zr is the lower-cost material: it sits in the high tier ($$$$) while Ti-5553 is specialty ($$$$$). 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-3Al-8V-6Cr-4Mo-4Zr or Ti-5553?
Ti-3Al-8V-6Cr-4Mo-4Zr. 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-3Al-8V-6Cr-4Mo-4Zr 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.