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Steel Nitralloy N-ANN vs Nitralloy N-N

Steel · Nitralloy N temper comparison

Nitralloy N-ANN and Nitralloy N-N are two conditions of the same steel grade, Nitralloy N: ANN (annealed) versus N (normalized). The chemistry is identical, so every difference below comes from the condition. Nitralloy N-N is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 520 MPa (75.4 ksi) for Nitralloy N-ANN, about 25% more; tensile strength follows at 900 MPa (131 ksi) vs 760 MPa (110 ksi). In exchange, Nitralloy N-ANN is the more ductile: elongation 24% versus 20% for Nitralloy N-N, and Nitralloy N-N is harder (269 HB vs 217 HB). Nitralloy N-ANN runs hotter in service (500°C vs 450°C continuous).

Nitralloy N-ANNChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Nitralloy N-NChoose it when strength drives the design.

Nitralloy N-ANN vs Nitralloy N-N: properties

Nitralloy N-ANNNitralloy N-N

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

760 MPa110 ksi
900 MPa131 ksi

Yield Strength (0.2% offset)

520 MPa75.4 ksi
650 MPa94.3 ksi

Elongation at Break

24%
20%

Reduction in Area

60%
55%

Compressive Strength

840 MPa122 ksi
660 MPa95.7 ksi

Shear Strength

620 MPa89.9 ksi
560 MPa81.2 ksi

Fatigue Strength (Endurance Limit)

350 MPa50.8 ksi
420 MPa60.9 ksi

Fracture Toughness (K_IC)

85 MPa·√m77.4 ksi·√in
95 MPa·√m86.5 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

217 HB
269 HB

Hardness, Rockwell C

33 HRC
27 HRC

Hardness, Vickers

325 HV
282 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Same in both: Density 7.8 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.

Thermal Conductivity

32 W/m·K18.5 BTU/hr·ft·°F
34 W/m·K19.6 BTU/hr·ft·°F

Max Service Temperature (continuous)

500°C932 °F
450°C842 °F

Same in both: Specific Heat Capacity 460 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 250 J/g107 BTU/lb · Min Service Temperature -60°C-76 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

5.4 % IACS
5.6 % IACS

Electrical Resistivity

3.2×10⁻⁷ Ω·m12.6 µΩ·in
3.1×10⁻⁷ Ω·m12.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 16 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

52 / 100
46 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
48%

Weldability

18 / 100
22 / 100

Formability (cold)

35 / 100
32 / 100

Same in both: Brazeability / Solderability 30 / 100 · Polishability 65 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 34 MJ/kg14,617 BTU/lb · Embodied Carbon (primary production) 2.6 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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleNitralloy N

Nitralloy N-ANN vs Nitralloy N-N — frequently asked

Is Nitralloy N-N stronger than Nitralloy N-ANN?

Yes. Nitralloy N-N has a typical yield strength of 650 MPa (94.3 ksi) against 520 MPa (75.4 ksi) for Nitralloy N-ANN — about 25% more. Tensile strength is 900 MPa (131 ksi) vs 760 MPa (110 ksi).

Which condition does FabDigit quote by default, ANN or N?

QT30-36HRC is the default Nitralloy N condition in the FabDigit quote flow (neither ANN 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.

Which is easier to machine, Nitralloy N-ANN or Nitralloy N-N?

Nitralloy N-ANN, by a small margin. Both rate fair for machinability — 52/100 against 46/100 for Nitralloy N-N.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Nitralloy N-ANN and Nitralloy N-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.