Refractory Metal Zr 705-ANN vs Zr 705 CWSR
Refractory Metal · Zr 705 temper comparison
Zr 705-ANN and Zr 705 CWSR are two conditions of the same refractory metal grade, Zr 705: ANN (annealed) versus CWSR (cold worked and stress relieved). The chemistry is identical, so every difference below comes from the condition. Zr 705 CWSR is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 450 MPa (65.3 ksi) for Zr 705-ANN, about 38% more; tensile strength follows at 760 MPa (110 ksi) vs 620 MPa (89.9 ksi). In exchange, Zr 705-ANN is the more ductile: elongation 20% versus 13% for Zr 705 CWSR, and Zr 705 CWSR is harder (265 HV vs 210 HV). Zr 705-ANN runs hotter in service (400°C vs 350°C continuous). On the shop floor, Zr 705-ANN welds better (65 vs 55 out of 100).
Zr 705-ANNChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Zr 705 CWSRChoose it when strength drives the design.
Zr 705-ANN vs Zr 705 CWSR: 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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Fatigue Strength (Endurance Limit)
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 97 GPa14.1 Msi · Shear Modulus 36 GPa5.2 Msi · Bulk Modulus 97 GPa14.1 Msi · Poisson's Ratio 0.35 · Reduction in Area 40% · Compressive Strength 470 MPa68.2 ksi · Shear Strength 370 MPa53.7 ksi · Fracture Toughness (K_IC) 60 MPa·√m54.6 ksi·√in · Charpy V-Notch Impact (RT) 27 J19.9 ft·lbf · Hardness, Brinell 200 HB · Hardness, Rockwell B 95 HRB
Physical
Density and transition temperatures.
Same in both: Density 6.64 g/cm³0.24 lb/in³ · Melting Point (Solidus) 1,840°C3,344 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 17.1 W/m·K9.9 BTU/hr·ft·°F · Specific Heat Capacity 281 J/kg·K0.07 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 6.3 µm/m·K3.5 µin/in·°F · Latent Heat of Fusion 155 J/g66.6 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 3.1 % IACS · Electrical Resistivity 5.5×10⁻⁷ Ω·m21.7 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 92 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 22% · Castability 25 / 100 · Brazeability / Solderability 20 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 1,400 MJ/kg601,892 BTU/lb · Embodied Carbon (primary production) 85 kg CO₂/kg · Embodied Water 600 L/kg71.9 gal/lb · Typical Recycled Content 25%
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.
Zr 705-ANN vs Zr 705 CWSR — frequently asked
Is Zr 705 CWSR stronger than Zr 705-ANN?
Yes. Zr 705 CWSR has a typical yield strength of 620 MPa (89.9 ksi) against 450 MPa (65.3 ksi) for Zr 705-ANN — about 38% more. Tensile strength is 760 MPa (110 ksi) vs 620 MPa (89.9 ksi).
Which condition does FabDigit quote by default, ANN or CWSR?
ANN is the default Zr 705 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which welds better, Zr 705-ANN or Zr 705 CWSR?
Zr 705-ANN. Its weldability rates good (65/100) against good (55/100) for Zr 705 CWSR.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Zr 705-ANN and Zr 705 CWSR 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.