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Steel Nitralloy N-N vs Nitralloy N Nitrided

Steel · Nitralloy N temper comparison

Nitralloy N-N and Nitralloy N Nitrided are two conditions of the same steel grade, Nitralloy N: N (normalized) versus Nitrided. The chemistry is identical, so every difference below comes from the condition. Nitralloy N Nitrided is the stronger of the two: yield strength 1,100 MPa (160 ksi) against 650 MPa (94.3 ksi) for Nitralloy N-N, about 69% more; tensile strength follows at 1,250 MPa (181 ksi) vs 900 MPa (131 ksi). In exchange, Nitralloy N-N is the more ductile: elongation 20% versus 13% for Nitralloy N Nitrided, and Nitralloy N Nitrided is harder (311 HB vs 269 HB). Nitralloy N Nitrided runs hotter in service (500°C vs 450°C continuous). On the shop floor, Nitralloy N-N machines more easily (fair vs not recommended).

Nitralloy N-NChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

Nitralloy N NitridedChoose it when strength drives the design, or when the part sees heat.

Nitralloy N-N vs Nitralloy N Nitrided: properties

Nitralloy N-NNitralloy N Nitrided

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

900 MPa131 ksi
1,250 MPa181 ksi

Yield Strength (0.2% offset)

650 MPa94.3 ksi
1,100 MPa160 ksi

Elongation at Break

20%
13%

Compressive Strength

660 MPa95.7 ksi
840 MPa122 ksi

Shear Strength

560 MPa81.2 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

420 MPa60.9 ksi
620 MPa89.9 ksi

Fracture Toughness (K_IC)

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

Charpy V-Notch Impact (RT)

45 J33.2 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

269 HB
311 HB

Hardness, Rockwell C

27 HRC
41 HRC

Hardness, Vickers

282 HV
1,100 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 · Reduction in Area 55%

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

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

Max Service Temperature (continuous)

450°C842 °F
500°C932 °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

5.6 % IACS
5.4 % IACS

Electrical Resistivity

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

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

16 / 100
25 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V

Manufacturability

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

Machinability

46 / 100
8 / 100

Machinability Rating (AISI 1212 = 100 %)

48%
5%

Weldability

22 / 100
18 / 100

Formability (cold)

32 / 100
25 / 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-N vs Nitralloy N Nitrided — frequently asked

Is Nitralloy N Nitrided stronger than Nitralloy N-N?

Yes. Nitralloy N Nitrided has a typical yield strength of 1,100 MPa (160 ksi) against 650 MPa (94.3 ksi) for Nitralloy N-N — about 69% more. Tensile strength is 1,250 MPa (181 ksi) vs 900 MPa (131 ksi).

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

QT30-36HRC is the default Nitralloy N condition in the FabDigit quote flow (neither N nor Nitrided). 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-N or Nitralloy N Nitrided?

Nitralloy N-N. Its machinability rates fair (46/100) against not recommended (8/100) for Nitralloy N Nitrided.

Ready to make it?

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