Steel W6Mo5Cr4V2 Cold Drawn vs W6Mo5Cr4V2 Q&T 64-66 HRC
Steel · W6Mo5Cr4V2 temper comparison
W6Mo5Cr4V2 Cold Drawn and W6Mo5Cr4V2 Q&T 64-66 HRC are two conditions of the same steel grade, W6Mo5Cr4V2: Cold Drawn versus Q&T 64-66 HRC (salt-bath/vacuum hardened at upper austenitising range, low-temper). The chemistry is identical, so every difference below comes from the condition. W6Mo5Cr4V2 Cold Drawn is the stronger of the two: yield strength 780 MPa (113 ksi) against 570 MPa (82.7 ksi) for W6Mo5Cr4V2 Q&T 64-66 HRC, about 37% more; tensile strength follows at 980 MPa (142 ksi) vs 850 MPa (123 ksi). In exchange, W6Mo5Cr4V2 Q&T 64-66 HRC is the more ductile: elongation 12% versus 6% for W6Mo5Cr4V2 Cold Drawn, and W6Mo5Cr4V2 Cold Drawn is harder (290 HB vs 240 HB). W6Mo5Cr4V2 Q&T 64-66 HRC runs hotter in service (600°C vs 400°C continuous). On the shop floor, W6Mo5Cr4V2 Cold Drawn machines more easily (fair vs not recommended).
W6Mo5Cr4V2 Cold DrawnChoose it when strength drives the design, or when the part is machined in volume.
W6Mo5Cr4V2 Q&T 64-66 HRCChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
W6Mo5Cr4V2 Cold Drawn vs W6Mo5Cr4V2 Q&T 64-66 HRC: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel 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 steel 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.
W6Mo5Cr4V2 Cold DrawnW6Mo5Cr4V2 Q&T 64-66 HRC
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
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, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 84 GPa12.2 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.28
Physical
Density and transition temperatures.
Same in both: Density 8.16 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,250°C2,282 °F · Liquidus Temperature 1,430°C2,606 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 24 W/m·K13.9 BTU/hr·ft·°F · Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.1 µm/m·K5.6 µin/in·°F · Latent Heat of Fusion 260 J/g112 BTU/lb · Min Service Temperature -60°C-76 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 18 / 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: Castability 30 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 90 L/kg10.8 gal/lb · Typical Recycled Content 40%
Strength versus weight
Yield strength against density for every steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
W6Mo5Cr4V2 Cold Drawn vs W6Mo5Cr4V2 Q&T 64-66 HRC — frequently asked
Is W6Mo5Cr4V2 Cold Drawn stronger than W6Mo5Cr4V2 Q&T 64-66 HRC?
Yes. W6Mo5Cr4V2 Cold Drawn has a typical yield strength of 780 MPa (113 ksi) against 570 MPa (82.7 ksi) for W6Mo5Cr4V2 Q&T 64-66 HRC — about 37% more. Tensile strength is 980 MPa (142 ksi) vs 850 MPa (123 ksi).
Which condition does FabDigit quote by default, Cold Drawn or Q&T 64-66 HRC?
Annealed is the default W6Mo5Cr4V2 condition in the FabDigit quote flow (neither Cold Drawn nor Q&T 64-66 HRC). 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, W6Mo5Cr4V2 Cold Drawn or W6Mo5Cr4V2 Q&T 64-66 HRC?
W6Mo5Cr4V2 Cold Drawn. Its machinability rates fair (36/100) against not recommended (3/100) for W6Mo5Cr4V2 Q&T 64-66 HRC.
Ready to make it?
Upload a CAD file and FabDigit prices the part in W6Mo5Cr4V2 Cold Drawn and W6Mo5Cr4V2 Q&T 64-66 HRC 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.