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Steel A182 F1 N+T vs A182 F1 Q+T

Steel · A182 F1 temper comparison

A182 F1 N+T and A182 F1 Q+T are two conditions of the same steel grade, A182 F1: N+T (normalized and tempered) versus Q+T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. A182 F1 Q+T is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 330 MPa (47.9 ksi) for A182 F1 N+T, about 15% more; tensile strength follows at 570 MPa (82.7 ksi) vs 530 MPa (76.9 ksi). A182 F1 Q+T is harder — 175 HB against 160 HB for A182 F1 N+T — which matters for wear surfaces and threads.

A182 F1 Q+TChoose it when strength drives the design, or when surface hardness matters.

A182 F1 N+T vs A182 F1 Q+T: properties

A182 F1 N+TA182 F1 Q+T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

530 MPa76.9 ksi
570 MPa82.7 ksi

Yield Strength (0.2% offset)

330 MPa47.9 ksi
380 MPa55.1 ksi

Elongation at Break

28%
26%

Reduction in Area

55%
60%

Compressive Strength

330 MPa47.9 ksi
380 MPa55.1 ksi

Shear Strength

340 MPa49.3 ksi
370 MPa53.7 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
265 MPa38.4 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
140 MPa·√m127 ksi·√in

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
90 J66.4 ft·lbf

Hardness, Brinell

160 HB
175 HB

Hardness, Rockwell B

83 HRB
88 HRB

Hardness, Vickers

168 HV
184 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 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,460°C2,660 °F · Liquidus Temperature 1,510°C2,750 °F

Thermal

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

Thermal Conductivity

43 W/m·K24.8 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.3 µm/m·K6.8 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 510°C950 °F · Min Service Temperature -29°C-20 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8.2 % IACS
8 % IACS

Electrical Resistivity

2.1×10⁻⁷ Ω·m8.27 µΩ·in
2.15×10⁻⁷ Ω·m8.46 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.62 V · Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

58 / 100
54 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
55%

Weldability

65 / 100
62 / 100

Formability (cold)

55 / 100
48 / 100

Same in both: Brazeability / Solderability 55 / 100 · Polishability 50 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 30 MJ/kg12,898 BTU/lb · Embodied Carbon (primary production) 2.2 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 F1

A182 F1 N+T vs A182 F1 Q+T — frequently asked

Is A182 F1 Q+T stronger than A182 F1 N+T?

Yes. A182 F1 Q+T has a typical yield strength of 380 MPa (55.1 ksi) against 330 MPa (47.9 ksi) for A182 F1 N+T — about 15% more. Tensile strength is 570 MPa (82.7 ksi) vs 530 MPa (76.9 ksi).

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

N+T is the default A182 F1 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 F1 N+T over A182 F1 Q+T?

Pick A182 F1 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 F1 N+T and A182 F1 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.