Steel 18CrNiMo7-6 Hot Rolled vs 18CrNiMo7-6 Normalized
Steel · 18CrNiMo7-6 temper comparison
18CrNiMo7-6 Hot Rolled and 18CrNiMo7-6 Normalized are two conditions of the same steel grade, 18CrNiMo7-6: Hot Rolled versus Normalized. The chemistry is identical, so every difference below comes from the condition. 18CrNiMo7-6 Normalized is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 500 MPa (72.5 ksi) for 18CrNiMo7-6 Hot Rolled, about 10% more; tensile strength follows at 850 MPa (123 ksi) vs 800 MPa (116 ksi).
18CrNiMo7-6 NormalizedChoose it when strength drives the design.
18CrNiMo7-6 Hot Rolled vs 18CrNiMo7-6 Normalized: 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.
18CrNiMo7-6 Hot Rolled18CrNiMo7-6 Normalized
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
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 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 160 GPa23.2 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) 1,425°C2,597 °F · Liquidus Temperature 1,495°C2,723 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 40 W/m·K23.1 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.5 µm/m·K6.4 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 350°C662 °F · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 7.8 % IACS · Electrical Resistivity 2.2×10⁻⁷ Ω·m8.66 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 12 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Same in both: Machinability 45 / 100 · Machinability Rating (AISI 1212 = 100 %) 45% · Weldability 45 / 100 · Formability (cold) 35 / 100 · Castability 25 / 100 · Brazeability / Solderability 55 / 100 · Polishability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 32 MJ/kg13,758 BTU/lb · Embodied Carbon (primary production) 2.3 kg CO₂/kg · Embodied Water 65 L/kg7.8 gal/lb · Typical Recycled Content 35%
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.
18CrNiMo7-6 Hot Rolled vs 18CrNiMo7-6 Normalized — frequently asked
Is 18CrNiMo7-6 Normalized stronger than 18CrNiMo7-6 Hot Rolled?
Yes. 18CrNiMo7-6 Normalized has a typical yield strength of 550 MPa (79.8 ksi) against 500 MPa (72.5 ksi) for 18CrNiMo7-6 Hot Rolled — about 10% more. Tensile strength is 850 MPa (123 ksi) vs 800 MPa (116 ksi).
Which condition does FabDigit quote by default, Hot Rolled or Normalized?
Annealed is the default 18CrNiMo7-6 condition in the FabDigit quote flow (neither Hot Rolled nor Normalized). 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 18CrNiMo7-6 Hot Rolled over 18CrNiMo7-6 Normalized?
Pick 18CrNiMo7-6 Normalized when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 18CrNiMo7-6 Hot Rolled and 18CrNiMo7-6 Normalized 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.