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Refractory Metal Zr 705C-ANN vs Zr 705C-HIP

Refractory Metal · Zr 705C temper comparison

Zr 705C-ANN and Zr 705C-HIP are two conditions of the same refractory metal grade, Zr 705C: ANN (annealed) versus HIP (hot isostatic pressed). The chemistry is identical, so every difference below comes from the condition. Zr 705C-HIP is the stronger of the two: yield strength 395 MPa (57.3 ksi) against 355 MPa (51.5 ksi) for Zr 705C-ANN, about 11% more; tensile strength follows at 510 MPa (74 ksi) vs 470 MPa (68.2 ksi). Zr 705C-HIP is harder — 190 HB against 175 HB for Zr 705C-ANN — which matters for wear surfaces and threads.

Zr 705C-HIPChoose it when strength drives the design, or when surface hardness matters.

Zr 705C-ANN vs Zr 705C-HIP: properties

Zr 705C-ANNZr 705C-HIP

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

470 MPa68.2 ksi
510 MPa74 ksi

Yield Strength (0.2% offset)

355 MPa51.5 ksi
395 MPa57.3 ksi

Elongation at Break

17%
16%

Reduction in Area

33%
30%

Compressive Strength

375 MPa54.4 ksi
410 MPa59.5 ksi

Shear Strength

315 MPa45.7 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

205 MPa29.7 ksi
250 MPa36.3 ksi

Fracture Toughness (K_IC)

52 MPa·√m47.3 ksi·√in
48 MPa·√m43.7 ksi·√in

Charpy V-Notch Impact (RT)

22 J16.2 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

175 HB
190 HB

Hardness, Rockwell B

88 HRB
92 HRB

Hardness, Vickers

184 HV
200 HV

Same in both: Elastic (Young's) Modulus 97 GPa14.1 Msi · Shear Modulus 36 GPa5.2 Msi · Bulk Modulus 95 GPa13.8 Msi · Poisson's Ratio 0.35 · Hardness, Rockwell C 13 HRC

Physical

Density and transition temperatures.

Same in both: Density 6.64 g/cm³0.24 lb/in³ · Melting Point (Solidus) 1,840°C3,344 °F · Liquidus Temperature 1,860°C3,380 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

17.3 W/m·K10 BTU/hr·ft·°F
17.1 W/m·K9.9 BTU/hr·ft·°F

Same in both: 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 153 J/g65.8 BTU/lb · Max Service Temperature (continuous) 375°C707 °F · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.2 % IACS
3.1 % IACS

Electrical Resistivity

5.4×10⁻⁷ Ω·m21.3 µΩ·in
5.5×10⁻⁷ Ω·m21.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

93 / 100
92 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

33 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

24%
22%

Weldability

70 / 100
68 / 100

Formability (cold)

22 / 100
18 / 100

Same in both: Castability 55 / 100 · Brazeability / Solderability 25 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 1,600 MJ/kg687,877 BTU/lb · Embodied Carbon (primary production) 105 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.

1502003005007001,0001,5005101520Density (g/cm³)Yield strength (MPa) — log scaleZr 705C

Zr 705C-ANN vs Zr 705C-HIP — frequently asked

Is Zr 705C-HIP stronger than Zr 705C-ANN?

Yes. Zr 705C-HIP has a typical yield strength of 395 MPa (57.3 ksi) against 355 MPa (51.5 ksi) for Zr 705C-ANN — about 11% more. Tensile strength is 510 MPa (74 ksi) vs 470 MPa (68.2 ksi).

Which condition does FabDigit quote by default, ANN or HIP?

F is the default Zr 705C condition in the FabDigit quote flow (neither ANN nor HIP). 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.

When should I choose Zr 705C-ANN over Zr 705C-HIP?

Pick Zr 705C-HIP when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Zr 705C-ANN and Zr 705C-HIP 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.