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Tungsten Alloy WHA-90 vs WHA-95

Tungsten Alloy · grade comparison

Tungsten Alloy WHA-90 and WHA-95 are both tungsten alloy grades. WHA-90 is the stronger of the two: tensile strength 900 MPa (131 ksi) against 820 MPa (119 ksi) for WHA-95, about 10% more. WHA-90 is the more ductile: elongation 10% versus 6% for WHA-95, and WHA-95 is harder (300 HB vs 285 HB). WHA-90 is lighter (17 g/cm³ vs 18.05 g/cm³ for WHA-95).

WHA-90Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

WHA-90 vs WHA-95: properties

WHA-90WHA-95

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

350 GPa50.8 Msi
360 GPa52.2 Msi

Shear Modulus

137 GPa19.9 Msi
140 GPa20.3 Msi

Bulk Modulus

265 GPa38.4 Msi
285 GPa41.3 Msi

Poisson's Ratio

0.29
0.29

Tensile Strength (Ultimate)

900 MPa131 ksi
820 MPa119 ksi

Yield Strength (0.2% offset)

620 MPa89.9 ksi
610 MPa88.5 ksi

Elongation at Break

10%
6%

Reduction in Area

9%
8%

Compressive Strength

1,400 MPa203 ksi
1,500 MPa218 ksi

Shear Strength

600 MPa87 ksi
520 MPa75.4 ksi

Fatigue Strength (Endurance Limit)

300 MPa43.5 ksi
280 MPa40.6 ksi

Fracture Toughness (K_IC)

70 MPa·√m63.7 ksi·√in
48 MPa·√m43.7 ksi·√in

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
8 J5.9 ft·lbf

Hardness, Brinell

285 HB
300 HB

Hardness, Rockwell C

26 HRC
30 HRC

Hardness, Vickers

300 HV
320 HV

Physical

Density and transition temperatures.

Density

17 g/cm³0.61 lb/in³
18.05 g/cm³0.65 lb/in³

Same in both: Melting Point (Solidus) 1,450°C2,642 °F

Thermal

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

Thermal Conductivity

90 W/m·K52 BTU/hr·ft·°F
95 W/m·K54.9 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

5.1 µm/m·K2.8 µin/in·°F
5 µm/m·K2.8 µin/in·°F

Min Service Temperature

—
-100°C-148 °F

Same in both: Max Service Temperature (continuous) 500°C932 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 15 % IACS · Electrical Resistivity 1.15×10⁻⁷ Ω·m4.53 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.2 V

Same in both: Corrosion Resistance 45 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

22%
20%

Same in both: Machinability 25 / 100 · Weldability 15 / 100 · Formability (cold) 8 / 100 · Brazeability / Solderability 65 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

320 MJ/kg137,575 BTU/lb
400 MJ/kg171,969 BTU/lb

Embodied Carbon (primary production)

22 kg CO₂/kg
27 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
500 L/kg59.9 gal/lb

Same in both: Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

53 kN·m/kg
45 kN·m/kg

Specific Stiffness (E / density)

20.6 MN·m/kg
19.9 MN·m/kg

Modulus of Resilience

549 kJ/m³
517 kJ/m³

Thermal Diffusivity

39.2 mm²/s
37.6 mm²/s

Thermal Shock Resistance Index

45
43

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 scaleWHA-90WHA-95

Manufacturing and finishing

CapabilityWHA-90WHA-95
Default condition——
Relative cost$$$$$ Specialty$$$$$ Specialty
Min. machined wall——
Best machined surface——

WHA-90 vs WHA-95 — frequently asked

Is WHA-90 stronger than WHA-95?

Yes. WHA-90 has a typical tensile strength of 900 MPa (131 ksi) against 820 MPa (119 ksi) for WHA-95 — about 10% more.

Which is cheaper, WHA-90 or WHA-95?

Both sit in the same relative cost tier ($$$$$, specialty); the part price will be decided by machining time, tolerance and quantity rather than by the material.

When should I choose WHA-90 over WHA-95?

Pick WHA-90 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 WHA-90 and WHA-95 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.