Steel 20NiCrMo2-2 +FP vs 20NiCrMo2-2 +N
Steel · 20NiCrMo2-2 temper comparison
20NiCrMo2-2 +FP and 20NiCrMo2-2 +N are two conditions of the same steel grade, 20NiCrMo2-2: +FP (treated to ferrite-pearlite structure) versus +N (normalized). The chemistry is identical, so every difference below comes from the condition. 20NiCrMo2-2 +N is the stronger of the two: tensile strength 630 MPa (91.4 ksi) against 580 MPa (84.1 ksi) for 20NiCrMo2-2 +FP, about 9% more. 20NiCrMo2-2 +N is the more ductile: elongation 26% versus 20% for 20NiCrMo2-2 +FP, and 20NiCrMo2-2 +N is harder (183 HB vs 165 HB).
20NiCrMo2-2 +NChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
20NiCrMo2-2 +FP vs 20NiCrMo2-2 +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
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 207 GPa30 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Shear Strength 380 MPa55.1 ksi · Fracture Toughness (K_IC) 95 MPa·√m86.5 ksi·√in
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,490°C2,714 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 44 W/m·K25.4 BTU/hr·ft·°F · Specific Heat Capacity 475 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.6 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 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: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 12 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Same in both: Machinability 62 / 100 · Machinability Rating (AISI 1212 = 100 %) 65% · Weldability 55 / 100 · Formability (cold) 55 / 100 · Brazeability / Solderability 60 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 31 MJ/kg13,328 BTU/lb · Embodied Carbon (primary production) 2.2 kg CO₂/kg · Embodied Water 60 L/kg7.2 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.
20NiCrMo2-2 +FP vs 20NiCrMo2-2 +N — frequently asked
Is 20NiCrMo2-2 +N stronger than 20NiCrMo2-2 +FP?
Yes. 20NiCrMo2-2 +N has a typical tensile strength of 630 MPa (91.4 ksi) against 580 MPa (84.1 ksi) for 20NiCrMo2-2 +FP — about 9% more.
Which condition does FabDigit quote by default, +FP or +N?
+FP is the default 20NiCrMo2-2 condition in the FabDigit quote flow. 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 20NiCrMo2-2 +FP over 20NiCrMo2-2 +N?
Pick 20NiCrMo2-2 +N when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 20NiCrMo2-2 +FP and 20NiCrMo2-2 +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.