Refractory Metal Re (Pure Rhenium)-CW vs Re (Pure Rhenium)-SR
Refractory Metal · Re (Pure Rhenium) temper comparison
Re (Pure Rhenium)-CW and Re (Pure Rhenium)-SR are two conditions of the same refractory metal grade, Re (Pure Rhenium): CW (cold worked) versus SR (stress relieved). The chemistry is identical, so every difference below comes from the condition. Re (Pure Rhenium)-CW is the stronger of the two: yield strength 1,900 MPa (276 ksi) against 1,100 MPa (160 ksi) for Re (Pure Rhenium)-SR, about 73% more; tensile strength follows at 2,100 MPa (305 ksi) vs 1,550 MPa (225 ksi). In exchange, Re (Pure Rhenium)-SR is the more ductile: elongation 12% versus 3% for Re (Pure Rhenium)-CW, and Re (Pure Rhenium)-SR is harder (360 HB vs 245 HB). Re (Pure Rhenium)-SR runs hotter in service (1,500°C vs 1,200°C continuous).
Re (Pure Rhenium)-CWChoose it when strength drives the design.
Re (Pure Rhenium)-SRChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Re (Pure Rhenium)-CW vs Re (Pure Rhenium)-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.
Re (Pure Rhenium)-CWRe (Pure Rhenium)-SR
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Hardness, Brinell
Hardness, Vickers
Same in both: Shear Modulus 178 GPa25.8 Msi · Bulk Modulus 370 GPa53.7 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 21.02 g/cm³0.76 lb/in³ · Melting Point (Solidus) 3,186°C5,767 °F · Liquidus Temperature 3,186°C5,767 °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 137 J/kg·K0.03 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 6.2 µm/m·K3.4 µin/in·°F · Latent Heat of Fusion 178 J/g76.5 BTU/lb · Min Service Temperature -269°C-452 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 72 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 8 / 100 · Brazeability / Solderability 60 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 450 MJ/kg193,465 BTU/lb · Embodied Carbon (primary production) 30 kg CO₂/kg · 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.
Re (Pure Rhenium)-CW vs Re (Pure Rhenium)-SR — frequently asked
Is Re (Pure Rhenium)-CW stronger than Re (Pure Rhenium)-SR?
Yes. Re (Pure Rhenium)-CW has a typical yield strength of 1,900 MPa (276 ksi) against 1,100 MPa (160 ksi) for Re (Pure Rhenium)-SR — about 73% more. Tensile strength is 2,100 MPa (305 ksi) vs 1,550 MPa (225 ksi).
Which condition does FabDigit quote by default, CW or SR?
Annealed is the default Re (Pure Rhenium) condition in the FabDigit quote flow (neither CW nor SR). 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, Re (Pure Rhenium)-CW or Re (Pure Rhenium)-SR?
Re (Pure Rhenium)-SR. Its weldability rates poor (28/100) against poor (20/100) for Re (Pure Rhenium)-CW.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Re (Pure Rhenium)-CW and Re (Pure Rhenium)-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.