Refractory Metal N1 vs Zr 702
Refractory Metal · grade comparison
Refractory Metal N1 and Zr 702 are both refractory metal grades. Zr 702 is the stronger of the two: yield strength 290 MPa (42.1 ksi) against 260 MPa (37.7 ksi) for N1, about 12% more; tensile strength follows at 450 MPa (65.3 ksi) vs 420 MPa (60.9 ksi). Zr 702 conducts heat better (22 W/m·K vs 18 W/m·K).
Zr 702Choose it when strength drives the design.
N1 vs Zr 702: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all refractory metal 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 refractory metal 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
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Rockwell B
Hardness, Vickers
Same in both: Shear Modulus 36 GPa5.2 Msi · Poisson's Ratio 0.35 · Elongation at Break 30% · Charpy V-Notch Impact (RT) 60 J44.3 ft·lbf · Hardness, Brinell 150 HB
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
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 285 J/kg·K0.07 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 5.9 µm/m·K3.3 µin/in·°F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 92 / 100
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)
Typical Recycled Content
Same in both: Embodied Water 900 L/kg108 gal/lb
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 refractory metal grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | N1 | Zr 702 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
N1 vs Zr 702 — frequently asked
Is Zr 702 stronger than N1?
Yes. Zr 702 has a typical yield strength of 290 MPa (42.1 ksi) against 260 MPa (37.7 ksi) for N1 — about 12% more. Tensile strength is 450 MPa (65.3 ksi) vs 420 MPa (60.9 ksi).
Which is cheaper, N1 or Zr 702?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, N1 or Zr 702?
Zr 702. Its weldability rates very good (80/100) against very good (75/100) for N1.
Ready to make it?
Upload a CAD file and FabDigit prices the part in N1 and Zr 702 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.