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Steel A182 F23 N+T vs A182 F23 Q+T

Steel · A182 F23 temper comparison

A182 F23 N+T and A182 F23 Q+T are two conditions of the same steel grade, A182 F23: N+T (normalized and tempered) versus Q+T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. A182 F23 Q+T is the stronger of the two: yield strength 520 MPa (75.4 ksi) against 480 MPa (69.6 ksi) for A182 F23 N+T, about 8% more; tensile strength follows at 640 MPa (92.8 ksi) vs 600 MPa (87 ksi). A182 F23 Q+T is harder — 200 HB against 185 HB for A182 F23 N+T — which matters for wear surfaces and threads.

A182 F23 Q+TChoose it when strength drives the design, or when surface hardness matters.

A182 F23 N+T vs A182 F23 Q+T: properties

A182 F23 N+TA182 F23 Q+T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

600 MPa87 ksi
640 MPa92.8 ksi

Yield Strength (0.2% offset)

480 MPa69.6 ksi
520 MPa75.4 ksi

Elongation at Break

25%
23%

Reduction in Area

65%
68%

Compressive Strength

480 MPa69.6 ksi
520 MPa75.4 ksi

Shear Strength

370 MPa53.7 ksi
395 MPa57.3 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
300 MPa43.5 ksi

Fracture Toughness (K_IC)

140 MPa·√m127 ksi·√in
150 MPa·√m137 ksi·√in

Charpy V-Notch Impact (RT)

150 J111 ft·lbf
170 J125 ft·lbf

Hardness, Brinell

185 HB
200 HB

Hardness, Rockwell B

90 HRB
93 HRB

Hardness, Vickers

195 HV
210 HV

Same in both: Elastic (Young's) Modulus 212 GPa30.7 Msi · Shear Modulus 82 GPa11.9 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,450°C2,642 °F · Liquidus Temperature 1,510°C2,750 °F

Thermal

How each material carries heat and how hot it can run.

Same in both: Thermal Conductivity 30 W/m·K17.3 BTU/hr·ft·°F · Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.5 µm/m·K6.4 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 600°C1,112 °F · Min Service Temperature -30°C-22 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Resistivity 4.5×10⁻⁷ Ω·m17.7 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

48 / 100
44 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
50%

Weldability

65 / 100
62 / 100

Formability (cold)

45 / 100
40 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 32 MJ/kg13,758 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 scaleA182 F23

A182 F23 N+T vs A182 F23 Q+T — frequently asked

Is A182 F23 Q+T stronger than A182 F23 N+T?

Yes. A182 F23 Q+T has a typical yield strength of 520 MPa (75.4 ksi) against 480 MPa (69.6 ksi) for A182 F23 N+T — about 8% more. Tensile strength is 640 MPa (92.8 ksi) vs 600 MPa (87 ksi).

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

N+T is the default A182 F23 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 A182 F23 N+T over A182 F23 Q+T?

Pick A182 F23 Q+T when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A182 F23 N+T and A182 F23 Q+T 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.