Tungsten Alloy Pure W-HIP vs Pure W Sintered
Tungsten Alloy · Pure W temper comparison
Pure W-HIP and Pure W Sintered are two conditions of the same tungsten alloy grade, Pure W: HIP (hot isostatic pressed) versus Sintered. The chemistry is identical, so every difference below comes from the condition. Pure W-HIP is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 300 MPa (43.5 ksi) for Pure W Sintered, about 27% more; tensile strength follows at 480 MPa (69.6 ksi) vs 350 MPa (50.8 ksi). Pure W-HIP is the more ductile: elongation 1% versus 0.5% for Pure W Sintered, and Pure W-HIP is harder (335 HB vs 290 HB). Pure W-HIP is stiffer (395 GPa vs 350 GPa) and Pure W-HIP conducts heat better (168 W/m·K vs 140 W/m·K).
Pure W-HIPChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Pure W-HIP vs Pure W Sintered: 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.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 156 GPa22.6 Msi · Bulk Modulus 310 GPa45 Msi · Poisson's Ratio 0.28 · Reduction in Area 4% · Compressive Strength 2,000 MPa290 ksi · Shear Strength 600 MPa87 ksi · Fatigue Strength (Endurance Limit) 260 MPa37.7 ksi · Charpy V-Notch Impact (RT) 3 J2.2 ft·lbf
Physical
Density and transition temperatures.
Density
Same in both: 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
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 · Max Service Temperature (continuous) 500°C932 °F · Min Service Temperature 20°C68 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Same in both: Electrical Resistivity 5.6×10⁻⁸ Ω·m2.2 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.12 V · Corrosion Resistance 60 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Same in both: Machinability Rating (AISI 1212 = 100 %) 8% · Weldability 10 / 100 · Formability (cold) 5 / 100 · Castability 3 / 100 · Brazeability / Solderability 60 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
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%
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.
Pure W-HIP vs Pure W Sintered — frequently asked
Is Pure W-HIP stronger than Pure W Sintered?
Yes. Pure W-HIP has a typical yield strength of 380 MPa (55.1 ksi) against 300 MPa (43.5 ksi) for Pure W Sintered — about 27% more. Tensile strength is 480 MPa (69.6 ksi) vs 350 MPa (50.8 ksi).
Which condition does FabDigit quote by default, HIP or Sintered?
As Rolled is the default Pure W condition in the FabDigit quote flow (neither HIP nor Sintered). 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.
When should I choose Pure W-HIP over Pure W Sintered?
Pick Pure W-HIP 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 Pure W-HIP and Pure W Sintered 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.