Refractory Metal MHC vs Mo-30W
Refractory Metal · grade comparison
Refractory Metal MHC and Mo-30W are both refractory metal grades. MHC is the stronger of the two: yield strength 800 MPa (116 ksi) against 620 MPa (89.9 ksi) for Mo-30W, about 29% more; tensile strength follows at 900 MPa (131 ksi) vs 760 MPa (110 ksi). In exchange, Mo-30W is the more ductile: elongation 18% versus 12% for MHC, and MHC is harder (25 HRC vs 23 HRC). MHC is lighter (10.2 g/cm³ vs 11.9 g/cm³ for Mo-30W) and Mo-30W is stiffer (340 GPa vs 320 GPa).
MHCChoose it when strength drives the design, or when weight is the constraint.
Mo-30WChoose it when the part is bent, formed or impact-loaded.
MHC vs Mo-30W: 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
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Rockwell C
Hardness, Vickers
Same in both: 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)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Weldability
Formability (cold)
Castability
Same in both: Machinability 30 / 100 · Machinability Rating (AISI 1212 = 100 %) 30% · Brazeability / Solderability 60 / 100 · Polishability 70 / 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 | MHC | Mo-30W |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
MHC vs Mo-30W — frequently asked
Is MHC stronger than Mo-30W?
Yes. MHC has a typical yield strength of 800 MPa (116 ksi) against 620 MPa (89.9 ksi) for Mo-30W — about 29% more. Tensile strength is 900 MPa (131 ksi) vs 760 MPa (110 ksi).
Which is cheaper, MHC or Mo-30W?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, MHC or Mo-30W?
Mo-30W. Its weldability rates poor (20/100) against poor (15/100) for MHC.
Ready to make it?
Upload a CAD file and FabDigit prices the part in MHC and Mo-30W 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.