Tungsten Alloy EWLa-1 vs EWTh-2
Tungsten Alloy · grade comparison
Tungsten Alloy EWLa-1 and EWTh-2 are both tungsten alloy grades. EWTh-2 is the stronger of the two: yield strength 1,150 MPa (167 ksi) against 850 MPa (123 ksi) for EWLa-1, about 35% more; tensile strength follows at 1,400 MPa (203 ksi) vs 1,100 MPa (160 ksi). EWTh-2 runs hotter in service (2,500°C vs 400°C continuous) and EWLa-1 conducts heat better (160 W/m·K vs 125 W/m·K).
EWTh-2Choose it when strength drives the design, or when the part sees heat.
EWLa-1 vs EWTh-2: 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Shear Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 400 GPa58 Msi · Bulk Modulus 310 GPa45 Msi · Poisson's Ratio 0.28 · Elongation at Break 2% · Fracture Toughness (K_IC) 10 MPa·√m9.1 ksi·√in · Charpy V-Notch Impact (RT) 2 J1.5 ft·lbf
Physical
Density and transition temperatures.
Same in both: Density 19.1 g/cm³0.69 lb/in³ · Melting Point (Solidus) 3,410°C6,170 °F · Liquidus Temperature 3,422°C6,192 °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 133 J/kg·K0.03 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 4.5 µm/m·K2.5 µin/in·°F · Latent Heat of Fusion 192 J/g82.5 BTU/lb
Electrical
Conductivity and insulation.
Electrical Conductivity
Same in both: Electrical Resistivity 6×10⁻⁸ Ω·m2.36 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Galvanic Potential (seawater, vs SCE)
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Brazeability / Solderability
Same in both: Machinability 8 / 100 · Machinability Rating (AISI 1212 = 100 %) 5% · Weldability 10 / 100 · Formability (cold) 5 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 380 MJ/kg163,371 BTU/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 20.9 MN·m/kg
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 | EWLa-1 | EWTh-2 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
EWLa-1 vs EWTh-2 — frequently asked
Is EWTh-2 stronger than EWLa-1?
Yes. EWTh-2 has a typical yield strength of 1,150 MPa (167 ksi) against 850 MPa (123 ksi) for EWLa-1 — about 35% more. Tensile strength is 1,400 MPa (203 ksi) vs 1,100 MPa (160 ksi).
Which is cheaper, EWLa-1 or EWTh-2?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose EWLa-1 over EWTh-2?
Pick EWTh-2 when strength drives the design, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in EWLa-1 and EWTh-2 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.