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Refractory Metal Mo-47.5Re-ANN vs Mo-47.5Re-AW

Refractory Metal · Mo-47.5Re temper comparison

Mo-47.5Re-ANN and Mo-47.5Re-AW are two conditions of the same refractory metal grade, Mo-47.5Re: ANN (annealed) versus AW (as-welded deposit). The chemistry is identical, so every difference below comes from the condition. Mo-47.5Re-AW is the stronger of the two: yield strength 520 MPa (75.4 ksi) against 490 MPa (71.1 ksi) for Mo-47.5Re-ANN, about 6% more. In exchange, Mo-47.5Re-ANN is the more ductile: elongation 26% versus 14% for Mo-47.5Re-AW, and Mo-47.5Re-AW is harder (27 HRC vs 23 HRC).

Mo-47.5Re-ANNChoose it when the part is bent, formed or impact-loaded.

Mo-47.5Re-AWChoose it when strength drives the design.

Mo-47.5Re-ANN vs Mo-47.5Re-AW: properties

Mo-47.5Re-ANNMo-47.5Re-AW

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

860 MPa125 ksi
900 MPa131 ksi

Yield Strength (0.2% offset)

490 MPa71.1 ksi
520 MPa75.4 ksi

Elongation at Break

26%
14%

Reduction in Area

60%
25%

Shear Strength

740 MPa107 ksi
560 MPa81.2 ksi

Hardness, Rockwell C

23 HRC
27 HRC

Hardness, Vickers

260 HV
280 HV

Same in both: Elastic (Young's) Modulus 360 GPa52.2 Msi · Shear Modulus 140 GPa20.3 Msi · Bulk Modulus 285 GPa41.3 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Same in both: Density 13.5 g/cm³0.49 lb/in³ · Melting Point (Solidus) 2,500°C4,532 °F · Liquidus Temperature 2,540°C4,604 °F

Thermal

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

Thermal Conductivity

45 W/m·K26 BTU/hr·ft·°F
46 W/m·K26.6 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 195 J/kg·K0.05 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 5.7 µm/m·K3.2 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Max Service Temperature (continuous) 2,000°C3,632 °F · Min Service Temperature -269°C-452 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 5.7 % IACS · Electrical Resistivity 3×10⁻⁷ Ω·m11.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Corrosion Resistance 55 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

12%
14%

Weldability

80 / 100
75 / 100

Formability (cold)

75 / 100
55 / 100

Same in both: Machinability 22 / 100 · Castability 35 / 100 · Brazeability / Solderability 70 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 5,000 MJ/kg2,149,615 BTU/lb · Embodied Carbon (primary production) 330 kg CO₂/kg · Typical Recycled Content 40%

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 scaleMo-47.5Re

Mo-47.5Re-ANN vs Mo-47.5Re-AW — frequently asked

Is Mo-47.5Re-AW stronger than Mo-47.5Re-ANN?

Yes. Mo-47.5Re-AW has a typical yield strength of 520 MPa (75.4 ksi) against 490 MPa (71.1 ksi) for Mo-47.5Re-ANN — about 6% more. Tensile strength is 900 MPa (131 ksi) vs 860 MPa (125 ksi).

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

SR is the default Mo-47.5Re condition in the FabDigit quote flow (neither ANN nor AW). 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, Mo-47.5Re-ANN or Mo-47.5Re-AW?

Mo-47.5Re-ANN. Its weldability rates very good (80/100) against very good (75/100) for Mo-47.5Re-AW.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Mo-47.5Re-ANN and Mo-47.5Re-AW 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.