Zinc Alloy Zn-Cu-Ti vs Zn99.5
Zinc Alloy · grade comparison
Zinc Alloy Zn-Cu-Ti and Zn99.5 are both zinc alloy grades. Zn-Cu-Ti is the stronger of the two: yield strength 120 MPa (17.4 ksi) against 95 MPa (13.8 ksi) for Zn99.5, about 26% more; tensile strength follows at 165 MPa (23.9 ksi) vs 140 MPa (20.3 ksi). Zn-Cu-Ti is harder — 47 HB against 38 HB for Zn99.5 — which matters for wear surfaces and threads. Zn99.5 is stiffer (95 GPa vs 85 GPa). On the shop floor, Zn-Cu-Ti sits in a lower cost tier (standard, $$) than Zn99.5 (premium, $$$).
Zn-Cu-TiChoose it when strength drives the design, or when surface hardness matters.
Zn-Cu-Ti vs Zn99.5: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all zinc alloy 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 zinc alloy 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Bulk Modulus 70 GPa10.2 Msi · Poisson's Ratio 0.25
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)
Min Service Temperature
Same in both: Specific Heat Capacity 390 J/kg·K0.09 BTU/lb·°F · Latent Heat of Fusion 112 J/g48.2 BTU/lb · Max Service Temperature (continuous) 100°C212 °F
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) -1.03 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Formability (cold)
Brazeability / Solderability
Polishability
Castability
Same in both: Machinability 75 / 100 · Machinability Rating (AISI 1212 = 100 %) 70% · Weldability 40 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg
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 zinc alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Zn-Cu-Ti | Zn99.5 |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| Default condition | O | — |
| Relative cost | $$ Standard | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
| Chrome Plating | Yes | — |
| E-Coating | Yes | — |
| Nickel Plating | Yes | — |
| Painting | Yes | — |
| Powder Coating | Yes | — |
They share 1 finish: Copper Plating.
Zn-Cu-Ti vs Zn99.5 — frequently asked
Is Zn-Cu-Ti stronger than Zn99.5?
Yes. Zn-Cu-Ti has a typical yield strength of 120 MPa (17.4 ksi) against 95 MPa (13.8 ksi) for Zn99.5 — about 26% more. Tensile strength is 165 MPa (23.9 ksi) vs 140 MPa (20.3 ksi).
Which is cheaper, Zn-Cu-Ti or Zn99.5?
Zn-Cu-Ti is the lower-cost material: it sits in the standard tier ($$) while Zn99.5 is premium ($$$). 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 Zn-Cu-Ti over Zn99.5?
Pick Zn-Cu-Ti when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Zn-Cu-Ti and Zn99.5 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.