Steel 20CrMoV13-5-5 +N vs 20CrMoV13-5-5 +U
Steel · 20CrMoV13-5-5 temper comparison
20CrMoV13-5-5 +N and 20CrMoV13-5-5 +U are two conditions of the same steel grade, 20CrMoV13-5-5: +N (normalized) versus +U (hot rolled). The chemistry is identical, so every difference below comes from the condition. 20CrMoV13-5-5 +N is the stronger of the two: yield strength 780 MPa (113 ksi) against 700 MPa (102 ksi) for 20CrMoV13-5-5 +U, about 11% more. 20CrMoV13-5-5 +N is harder — 320 HB against 300 HB for 20CrMoV13-5-5 +U — which matters for wear surfaces and threads. 20CrMoV13-5-5 +N runs hotter in service (500°C vs 450°C continuous).
20CrMoV13-5-5 +NChoose it when strength drives the design, or when surface hardness matters.
20CrMoV13-5-5 +N vs 20CrMoV13-5-5 +U: 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.
20CrMoV13-5-5 +N20CrMoV13-5-5 +U
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 213 GPa30.9 Msi · Shear Modulus 82 GPa11.9 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.29 · Elongation at Break 12%
Physical
Density and transition temperatures.
Same in both: Density 7.8 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,450°C2,642 °F · Liquidus Temperature 1,500°C2,732 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 33 W/m·K19.1 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.8 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 6.2 % IACS · Electrical Resistivity 2.8×10⁻⁷ Ω·m11 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 18 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 25 / 100 · Castability 35 / 100 · Brazeability / Solderability 45 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 34 MJ/kg14,617 BTU/lb · Embodied Carbon (primary production) 2.4 kg CO₂/kg · Embodied Water 65 L/kg7.8 gal/lb · Typical Recycled Content 25%
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.
20CrMoV13-5-5 +N vs 20CrMoV13-5-5 +U — frequently asked
Is 20CrMoV13-5-5 +N stronger than 20CrMoV13-5-5 +U?
Yes. 20CrMoV13-5-5 +N has a typical yield strength of 780 MPa (113 ksi) against 700 MPa (102 ksi) for 20CrMoV13-5-5 +U — about 11% more. Tensile strength is 1,050 MPa (152 ksi) vs 1,000 MPa (145 ksi).
Which condition does FabDigit quote by default, +N or +U?
+QT is the default 20CrMoV13-5-5 condition in the FabDigit quote flow (neither +N nor +U). 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 20CrMoV13-5-5 +N over 20CrMoV13-5-5 +U?
Pick 20CrMoV13-5-5 +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 20CrMoV13-5-5 +N and 20CrMoV13-5-5 +U 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.