Refractory Metal Ta-10W-CW vs Ta-10W-SR
Refractory Metal · Ta-10W temper comparison
Ta-10W-CW and Ta-10W-SR are two conditions of the same refractory metal grade, Ta-10W: CW (cold worked) versus SR (stress relieved). The chemistry is identical, so every difference below comes from the condition. Ta-10W-CW is the stronger of the two: yield strength 930 MPa (135 ksi) against 720 MPa (104 ksi) for Ta-10W-SR, about 29% more; tensile strength follows at 1,030 MPa (149 ksi) vs 830 MPa (120 ksi). In exchange, Ta-10W-SR is the more ductile: elongation 15% versus 5% for Ta-10W-CW, and Ta-10W-CW is harder (315 HB vs 270 HB).
Ta-10W-CWChoose it when strength drives the design.
Ta-10W-SRChoose it when the part is bent, formed or impact-loaded.
Ta-10W-CW vs Ta-10W-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
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 78 GPa11.3 Msi · Bulk Modulus 200 GPa29 Msi · Poisson's Ratio 0.33 · Hardness, Rockwell B 97 HRB
Physical
Density and transition temperatures.
Same in both: Density 16.8 g/cm³0.61 lb/in³ · Melting Point (Solidus) 3,030°C5,486 °F · Liquidus Temperature 3,080°C5,576 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 145 J/kg·K0.03 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 6.5 µm/m·K3.6 µin/in·°F · Latent Heat of Fusion 185 J/g79.5 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · 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 95 / 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 15 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 3,600 MJ/kg1,547,723 BTU/lb · Embodied Carbon (primary production) 220 kg CO₂/kg · Embodied Water 2,500 L/kg300 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.
Ta-10W-CW vs Ta-10W-SR — frequently asked
Is Ta-10W-CW stronger than Ta-10W-SR?
Yes. Ta-10W-CW has a typical yield strength of 930 MPa (135 ksi) against 720 MPa (104 ksi) for Ta-10W-SR — about 29% more. Tensile strength is 1,030 MPa (149 ksi) vs 830 MPa (120 ksi).
Which condition does FabDigit quote by default, CW or SR?
ANN is the default Ta-10W 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, Ta-10W-CW or Ta-10W-SR?
Ta-10W-SR. Its weldability rates good (65/100) against good (60/100) for Ta-10W-CW.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ta-10W-CW and Ta-10W-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.