FabDigitFabDigit

Tungsten Alloy EWCe-2 vs W-25Re

Tungsten Alloy · grade comparison

Tungsten Alloy EWCe-2 and W-25Re are both tungsten alloy grades. W-25Re is the stronger of the two: yield strength 1,850 MPa (268 ksi) against 1,100 MPa (160 ksi) for EWCe-2, about 68% more; tensile strength follows at 2,100 MPa (305 ksi) vs 1,300 MPa (189 ksi). W-25Re is the more ductile: elongation 4% versus 2% for EWCe-2, and W-25Re is harder (620 HV vs 460 HV). EWCe-2 is lighter (19.1 g/cm³ vs 19.7 g/cm³ for W-25Re) and W-25Re runs hotter in service (2,400°C vs 500°C continuous). On the shop floor, W-25Re welds better (fair vs not recommended).

EWCe-2Choose it when weight is the constraint.

W-25ReChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

EWCe-2 vs W-25Re: properties

EWCe-2W-25Re

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

155 GPa22.5 Msi
156 GPa22.6 Msi

Poisson's Ratio

0.28
0.29

Tensile Strength (Ultimate)

1,300 MPa189 ksi
2,100 MPa305 ksi

Yield Strength (0.2% offset)

1,100 MPa160 ksi
1,850 MPa268 ksi

Elongation at Break

2%
4%

Compressive Strength

2,200 MPa319 ksi
—

Fracture Toughness (K_IC)

10 MPa·√m9.1 ksi·√in
25 MPa·√m22.8 ksi·√in

Hardness, Vickers

460 HV
620 HV

Reduction in Area

—
30%

Fatigue Strength (Endurance Limit)

—
700 MPa102 ksi

Same in both: Elastic (Young's) Modulus 400 GPa58 Msi · Bulk Modulus 310 GPa45 Msi

Physical

Density and transition temperatures.

Density

19.1 g/cm³0.69 lb/in³
19.7 g/cm³0.71 lb/in³

Melting Point (Solidus)

3,410°C6,170 °F
3,000°C5,432 °F

Liquidus Temperature

3,422°C6,192 °F
3,080°C5,576 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

160 W/m·K92.4 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Specific Heat Capacity

133 J/kg·K0.03 BTU/lb·°F
140 J/kg·K0.03 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

4.5 µm/m·K2.5 µin/in·°F
4.6 µm/m·K2.6 µin/in·°F

Latent Heat of Fusion

192 J/g82.5 BTU/lb
185 J/g79.5 BTU/lb

Max Service Temperature (continuous)

500°C932 °F
2,400°C4,352 °F

Min Service Temperature

-196°C-321 °F
-100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

30 % IACS
5.7 % IACS

Electrical Resistivity

5.7×10⁻⁸ Ω·m2.24 µΩ·in
3×10⁻⁷ Ω·m11.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

82 / 100
60 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Weldability

10 / 100
45 / 100

Formability (cold)

5 / 100
30 / 100

Polishability

75 / 100
70 / 100

Same in both: Machinability 8 / 100 · Machinability Rating (AISI 1212 = 100 %) 5% · Brazeability / Solderability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

390 MJ/kg167,670 BTU/lb
750 MJ/kg322,442 BTU/lb

Embodied Carbon (primary production)

23 kg CO₂/kg
55 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
400 L/kg47.9 gal/lb

Typical Recycled Content

10%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

68 kN·m/kg
107 kN·m/kg

Specific Stiffness (E / density)

20.9 MN·m/kg
20.3 MN·m/kg

Modulus of Resilience

1,513 kJ/m³
4,278 kJ/m³

Thermal Diffusivity

63 mm²/s
16.3 mm²/s

Thermal Shock Resistance Index

116
51

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.

5007001,0001,500141516171819Density (g/cm³)Yield strength (MPa) — log scaleW-25ReEWCe-2

Manufacturing and finishing

CapabilityEWCe-2W-25Re
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

EWCe-2 vs W-25Re — frequently asked

Is W-25Re stronger than EWCe-2?

Yes. W-25Re has a typical yield strength of 1,850 MPa (268 ksi) against 1,100 MPa (160 ksi) for EWCe-2 — about 68% more. Tensile strength is 2,100 MPa (305 ksi) vs 1,300 MPa (189 ksi).

Which is cheaper, EWCe-2 or W-25Re?

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.

Which welds better, EWCe-2 or W-25Re?

W-25Re. Its weldability rates fair (45/100) against not recommended (10/100) for EWCe-2.

Ready to make it?

Upload a CAD file and FabDigit prices the part in EWCe-2 and W-25Re 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.