Refractory Metal Mo-47.5Re-AW vs Mo-47.5Re-SR
Refractory Metal · Mo-47.5Re temper comparison
Mo-47.5Re-AW and Mo-47.5Re-SR are two conditions of the same refractory metal grade, Mo-47.5Re: AW (as-welded deposit) versus SR (stress relieved). The chemistry is identical, so every difference below comes from the condition. Mo-47.5Re-SR is the stronger of the two: yield strength 1,000 MPa (145 ksi) against 520 MPa (75.4 ksi) for Mo-47.5Re-AW, about 92% more; tensile strength follows at 1,240 MPa (180 ksi) vs 900 MPa (131 ksi). In exchange, Mo-47.5Re-AW is the more ductile: elongation 14% versus 12% for Mo-47.5Re-SR, and Mo-47.5Re-SR is harder (34 HRC vs 27 HRC). Mo-47.5Re-AW runs hotter in service (2,000°C vs 1,400°C continuous).
Mo-47.5Re-AWChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Mo-47.5Re-SRChoose it when strength drives the design.
Mo-47.5Re-AW vs Mo-47.5Re-SR: 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
Reduction in Area
Shear Strength
Hardness, Rockwell C
Hardness, Vickers
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
Max Service Temperature (continuous)
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 · 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
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 75 / 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.
Mo-47.5Re-AW vs Mo-47.5Re-SR — frequently asked
Is Mo-47.5Re-SR stronger than Mo-47.5Re-AW?
Yes. Mo-47.5Re-SR has a typical yield strength of 1,000 MPa (145 ksi) against 520 MPa (75.4 ksi) for Mo-47.5Re-AW — about 92% more. Tensile strength is 1,240 MPa (180 ksi) vs 900 MPa (131 ksi).
Which condition does FabDigit quote by default, AW or SR?
SR is the default Mo-47.5Re 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.
When should I choose Mo-47.5Re-AW over Mo-47.5Re-SR?
Pick Mo-47.5Re-AW when the part is bent, formed or impact-loaded, or when the part sees heat. Pick Mo-47.5Re-SR when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Mo-47.5Re-AW and Mo-47.5Re-SR 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.