Tungsten Alloy Class 2 Tungsten vs W (99.95% CP Tungsten)
Tungsten Alloy · grade comparison
Tungsten Alloy Class 2 Tungsten and W (99.95% CP Tungsten) are both tungsten alloy grades. Class 2 Tungsten is the stronger of the two: yield strength 800 MPa (116 ksi) against 750 MPa (109 ksi) for W (99.95% CP Tungsten), about 7% more; tensile strength follows at 1,050 MPa (152 ksi) vs 950 MPa (138 ksi). Class 2 Tungsten is the more ductile: elongation 3% versus 2% for W (99.95% CP Tungsten), and Class 2 Tungsten is harder (42 HRC vs 39 HRC). Class 2 Tungsten runs hotter in service (2,500°C vs 1,200°C continuous).
Class 2 TungstenChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Class 2 Tungsten vs W (99.95% CP Tungsten): propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all tungsten alloy 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 tungsten alloy 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.
Class 2 TungstenW (99.95% CP Tungsten)
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Rockwell C
Hardness, Vickers
Charpy V-Notch Impact (RT)
Hardness, Brinell
Same in both: Bulk Modulus 310 GPa45 Msi · Poisson's Ratio 0.28
Physical
Density and transition temperatures.
Same in both: Density 19.25 g/cm³0.7 lb/in³ · Melting Point (Solidus) 3,422°C6,192 °F · Liquidus Temperature 3,422°C6,192 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 132 J/kg·K0.03 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 4.5 µm/m·K2.5 µin/in·°F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Brazeability / Solderability
Polishability
Same in both: Weldability 12 / 100 · Formability (cold) 8 / 100 · Castability 3 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Water
Same in both: Embodied Energy (primary production) 400 MJ/kg171,969 BTU/lb · Embodied Carbon (primary production) 27 kg CO₂/kg · Typical Recycled Content 30%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every tungsten alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Class 2 Tungsten | W (99.95% CP Tungsten) |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Class 2 Tungsten vs W (99.95% CP Tungsten) — frequently asked
Is Class 2 Tungsten stronger than W (99.95% CP Tungsten)?
Yes. Class 2 Tungsten has a typical yield strength of 800 MPa (116 ksi) against 750 MPa (109 ksi) for W (99.95% CP Tungsten) — about 7% more. Tensile strength is 1,050 MPa (152 ksi) vs 950 MPa (138 ksi).
Which is cheaper, Class 2 Tungsten or W (99.95% CP Tungsten)?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose Class 2 Tungsten over W (99.95% CP Tungsten)?
Pick Class 2 Tungsten when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Class 2 Tungsten and W (99.95% CP Tungsten) 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.