Steel Cr12MoV Nitrided vs Cr12MoV Q&T
Steel · Cr12MoV temper comparison
Cr12MoV Nitrided and Cr12MoV Q&T are two conditions of the same steel grade, Cr12MoV: Nitrided versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. Cr12MoV Q&T is the stronger of the two: yield strength 1,800 MPa (261 ksi) against 1,700 MPa (247 ksi) for Cr12MoV Nitrided, about 6% more. Cr12MoV Q&T is the more ductile: elongation 1% versus 0.5% for Cr12MoV Nitrided, and Cr12MoV Nitrided is harder (1,100 HV vs 700 HV). Cr12MoV Nitrided runs hotter in service (450°C vs 180°C continuous).
Cr12MoV NitridedChoose it when the part sees heat.
Cr12MoV Q&TChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Cr12MoV Nitrided vs Cr12MoV Q&T: 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.
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)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Hardness, Brinell 217 HB · Hardness, Rockwell B 96 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.7 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,480°C2,696 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 20 W/m·K11.6 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11 µm/m·K6.1 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Polishability
Same in both: Castability 25 / 100 · Brazeability / Solderability 25 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 36 MJ/kg15,477 BTU/lb · Embodied Carbon (primary production) 2.8 kg CO₂/kg · Embodied Water 75 L/kg9 gal/lb · Typical Recycled Content 50%
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.
Cr12MoV Nitrided vs Cr12MoV Q&T — frequently asked
Is Cr12MoV Q&T stronger than Cr12MoV Nitrided?
Yes. Cr12MoV Q&T has a typical yield strength of 1,800 MPa (261 ksi) against 1,700 MPa (247 ksi) for Cr12MoV Nitrided — about 6% more. Tensile strength is 2,100 MPa (305 ksi) vs 2,000 MPa (290 ksi).
Which condition does FabDigit quote by default, Nitrided or Q&T?
Annealed is the default Cr12MoV condition in the FabDigit quote flow (neither Nitrided nor Q&T). 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 welds better, Cr12MoV Nitrided or Cr12MoV Q&T?
Cr12MoV Q&T. Its weldability rates not recommended (8/100) against not recommended (3/100) for Cr12MoV Nitrided.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Cr12MoV Nitrided and Cr12MoV Q&T 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.