Steel 12Cr1MoV-HR vs 12Cr1MoV-N
Steel · 12Cr1MoV temper comparison
12Cr1MoV-HR and 12Cr1MoV-N are two conditions of the same steel grade, 12Cr1MoV: HR (hot rolled) versus N (normalized). The chemistry is identical, so every difference below comes from the condition. 12Cr1MoV-N is the stronger of the two: yield strength 410 MPa (59.5 ksi) against 310 MPa (45 ksi) for 12Cr1MoV-HR, about 32% more; tensile strength follows at 620 MPa (89.9 ksi) vs 550 MPa (79.8 ksi). 12Cr1MoV-N is harder — 190 HB against 170 HB for 12Cr1MoV-HR — which matters for wear surfaces and threads.
12Cr1MoV-NChoose it when strength drives the design, or when surface hardness matters.
12Cr1MoV-HR vs 12Cr1MoV-N: 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)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 212 GPa30.7 Msi · Shear Modulus 82 GPa11.9 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,490°C2,714 °F · Liquidus Temperature 1,520°C2,768 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 22 / 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 40 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 30 MJ/kg12,898 BTU/lb · Embodied Carbon (primary production) 2.2 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 30%
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.
12Cr1MoV-HR vs 12Cr1MoV-N — frequently asked
Is 12Cr1MoV-N stronger than 12Cr1MoV-HR?
Yes. 12Cr1MoV-N has a typical yield strength of 410 MPa (59.5 ksi) against 310 MPa (45 ksi) for 12Cr1MoV-HR — about 32% more. Tensile strength is 620 MPa (89.9 ksi) vs 550 MPa (79.8 ksi).
Which condition does FabDigit quote by default, HR or N?
N&T is the default 12Cr1MoV condition in the FabDigit quote flow (neither HR nor N). 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.
When should I choose 12Cr1MoV-HR over 12Cr1MoV-N?
Pick 12Cr1MoV-N when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 12Cr1MoV-HR and 12Cr1MoV-N 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.