Refractory Metal Pure Mo Arc Cast SR vs Pure Mo As Rolled
Refractory Metal · Pure Mo temper comparison
Pure Mo Arc Cast SR and Pure Mo As Rolled are two conditions of the same refractory metal grade, Pure Mo: Arc Cast SR (arc Cast, Stress Relieved) versus As Rolled (hot rolled). The chemistry is identical, so every difference below comes from the condition. Pure Mo As Rolled is the stronger of the two: yield strength 590 MPa (85.6 ksi) against 400 MPa (58 ksi) for Pure Mo Arc Cast SR, about 48% more; tensile strength follows at 700 MPa (102 ksi) vs 520 MPa (75.4 ksi). In exchange, Pure Mo Arc Cast SR is the more ductile: elongation 28% versus 10% for Pure Mo As Rolled, and Pure Mo As Rolled is harder (240 HB vs 200 HB). On the shop floor, Pure Mo Arc Cast SR welds better (30 vs 20 out of 100).
Pure Mo Arc Cast SRChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
Pure Mo As RolledChoose it when strength drives the design.
Pure Mo Arc Cast SR vs Pure Mo As Rolled: 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.
Pure Mo Arc Cast SRPure Mo As Rolled
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 320 GPa46.4 Msi · Shear Modulus 125 GPa18.1 Msi · Bulk Modulus 230 GPa33.4 Msi · Poisson's Ratio 0.31
Physical
Density and transition temperatures.
Same in both: Density 10.22 g/cm³0.37 lb/in³ · Melting Point (Solidus) 2,623°C4,753 °F · Liquidus Temperature 2,623°C4,753 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 250 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 5.2 µm/m·K2.9 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Max Service Temperature (continuous) 500°C932 °F · Min Service Temperature 20°C68 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V · Corrosion Resistance 55 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 70 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 380 MJ/kg163,371 BTU/lb · Embodied Carbon (primary production) 25 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 30%
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.
Pure Mo Arc Cast SR vs Pure Mo As Rolled — frequently asked
Is Pure Mo As Rolled stronger than Pure Mo Arc Cast SR?
Yes. Pure Mo As Rolled has a typical yield strength of 590 MPa (85.6 ksi) against 400 MPa (58 ksi) for Pure Mo Arc Cast SR — about 48% more. Tensile strength is 700 MPa (102 ksi) vs 520 MPa (75.4 ksi).
Which condition does FabDigit quote by default, Arc Cast SR or As Rolled?
As Rolled is the default Pure Mo condition in the FabDigit quote flow. 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.
Which is easier to machine, Pure Mo Arc Cast SR or Pure Mo As Rolled?
Pure Mo Arc Cast SR, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for Pure Mo As Rolled; for welding the order is Pure Mo Arc Cast SR first (poor, 30/100) then Pure Mo As Rolled (poor, 20/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pure Mo Arc Cast SR and Pure Mo As Rolled 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.