Refractory Metal Mo-30W vs Mo-La
Refractory Metal · grade comparison
Refractory Metal Mo-30W and Mo-La are both refractory metal grades. Mo-30W is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 560 MPa (81.2 ksi) for Mo-La, about 11% more; tensile strength follows at 760 MPa (110 ksi) vs 700 MPa (102 ksi). Mo-30W is the more ductile: elongation 18% versus 8% for Mo-La, and Mo-30W is harder (23 HRC vs 21 HRC). Mo-La is lighter (10.2 g/cm³ vs 11.9 g/cm³ for Mo-30W) and Mo-30W is stiffer (340 GPa vs 320 GPa). On the shop floor, Mo-30W sits in a lower cost tier (high, $$$$) than Mo-La (specialty, $$$$$).
Mo-30WChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Mo-LaChoose it when weight is the constraint, or when the part sees heat.
Mo-30W vs Mo-La: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all refractory metal 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 refractory metal 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
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fracture Toughness (K_IC)
Hardness, Rockwell C
Hardness, Vickers
Hardness, Brinell
Hardness, Rockwell B
Same in both: Fatigue Strength (Endurance Limit) 300 MPa43.5 ksi · Charpy V-Notch Impact (RT) 6 J4.4 ft·lbf
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 55 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Castability
Brazeability / Solderability
Polishability
Same in both: Weldability 20 / 100 · Formability (cold) 25 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
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 refractory metal grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Mo-30W | Mo-La |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$$ Specialty |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Mo-30W vs Mo-La — frequently asked
Is Mo-30W stronger than Mo-La?
Yes. Mo-30W has a typical yield strength of 620 MPa (89.9 ksi) against 560 MPa (81.2 ksi) for Mo-La — about 11% more. Tensile strength is 760 MPa (110 ksi) vs 700 MPa (102 ksi).
Which is cheaper, Mo-30W or Mo-La?
Mo-30W is the lower-cost material: it sits in the high tier ($$$$) while Mo-La is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, Mo-30W or Mo-La?
Mo-La. Its machinability rates fair (35/100) against poor (30/100) for Mo-30W.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Mo-30W and Mo-La 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.