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Steel 24CrMo13-6 +A vs 24CrMo13-6 +N

Steel · 24CrMo13-6 temper comparison

24CrMo13-6 +A and 24CrMo13-6 +N are two conditions of the same steel grade, 24CrMo13-6: +A (annealed) versus +N (normalized). The chemistry is identical, so every difference below comes from the condition. 24CrMo13-6 +N is the stronger of the two: yield strength 600 MPa (87 ksi) against 450 MPa (65.3 ksi) for 24CrMo13-6 +A, about 33% more; tensile strength follows at 900 MPa (131 ksi) vs 700 MPa (102 ksi). In exchange, 24CrMo13-6 +A is the more ductile: elongation 20% versus 15% for 24CrMo13-6 +N, and 24CrMo13-6 +N is harder (280 HB vs 225 HB). On the shop floor, 24CrMo13-6 +A machines more easily (good vs fair).

24CrMo13-6 +AChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

24CrMo13-6 +NChoose it when strength drives the design.

24CrMo13-6 +A vs 24CrMo13-6 +N: properties

24CrMo13-6 +A24CrMo13-6 +N

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

700 MPa102 ksi
900 MPa131 ksi

Yield Strength (0.2% offset)

450 MPa65.3 ksi
600 MPa87 ksi

Elongation at Break

20%
15%

Reduction in Area

55%
50%

Compressive Strength

880 MPa128 ksi
610 MPa88.5 ksi

Shear Strength

650 MPa94.3 ksi
540 MPa78.3 ksi

Fatigue Strength (Endurance Limit)

330 MPa47.9 ksi
410 MPa59.5 ksi

Fracture Toughness (K_IC)

75 MPa·√m68.3 ksi·√in
85 MPa·√m77.4 ksi·√in

Charpy V-Notch Impact (RT)

45 J33.2 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

225 HB
280 HB

Hardness, Rockwell C

34 HRC
28 HRC

Hardness, Vickers

235 HV
295 HV

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 7.8 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.

Thermal Conductivity

34 W/m·K19.6 BTU/hr·ft·°F
36 W/m·K20.8 BTU/hr·ft·°F

Max Service Temperature (continuous)

500°C932 °F
480°C896 °F

Same in both: 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 -40°C-40 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Resistivity 2.7×10⁻⁷ Ω·m10.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Corrosion Resistance 15 / 100

Manufacturability

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

Machinability

55 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

62%
55%

Formability (cold)

35 / 100
30 / 100

Same in both: Weldability 30 / 100 · Brazeability / Solderability 45 / 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) 2.4 kg CO₂/kg · Embodied Water 60 L/kg7.2 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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scale24CrMo13-6

24CrMo13-6 +A vs 24CrMo13-6 +N — frequently asked

Is 24CrMo13-6 +N stronger than 24CrMo13-6 +A?

Yes. 24CrMo13-6 +N has a typical yield strength of 600 MPa (87 ksi) against 450 MPa (65.3 ksi) for 24CrMo13-6 +A — about 33% more. Tensile strength is 900 MPa (131 ksi) vs 700 MPa (102 ksi).

Which condition does FabDigit quote by default, +A or +N?

+QT-100 is the default 24CrMo13-6 condition in the FabDigit quote flow (neither +A 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, 24CrMo13-6 +A or 24CrMo13-6 +N?

24CrMo13-6 +A. Its machinability rates good (55/100) against fair (45/100) for 24CrMo13-6 +N.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 24CrMo13-6 +A and 24CrMo13-6 +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.