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Steel A182 F1-A vs A182 F1 N+T

Steel · A182 F1 temper comparison

A182 F1-A and A182 F1 N+T are two conditions of the same steel grade, A182 F1: A (solution annealed) versus N+T (normalized and tempered). The chemistry is identical, so every difference below comes from the condition. A182 F1 N+T is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 300 MPa (43.5 ksi) for A182 F1-A, about 10% more; tensile strength follows at 530 MPa (76.9 ksi) vs 500 MPa (72.5 ksi). A182 F1 N+T is harder — 160 HB against 148 HB for A182 F1-A — which matters for wear surfaces and threads.

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

A182 F1-A vs A182 F1 N+T: properties

A182 F1-AA182 F1 N+T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

500 MPa72.5 ksi
530 MPa76.9 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
330 MPa47.9 ksi

Elongation at Break

31%
28%

Reduction in Area

58%
55%

Compressive Strength

300 MPa43.5 ksi
330 MPa47.9 ksi

Shear Strength

320 MPa46.4 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

225 MPa32.6 ksi
240 MPa34.8 ksi

Fracture Toughness (K_IC)

115 MPa·√m105 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

148 HB
160 HB

Hardness, Rockwell B

79 HRB
83 HRB

Hardness, Vickers

155 HV
168 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

44 W/m·K25.4 BTU/hr·ft·°F
43 W/m·K24.8 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

8.4 % IACS
8.2 % IACS

Electrical Resistivity

2.05×10⁻⁷ Ω·m8.07 µΩ·in
2.1×10⁻⁷ Ω·m8.27 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

62 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
60%

Weldability

68 / 100
65 / 100

Formability (cold)

62 / 100
55 / 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-A vs A182 F1 N+T — frequently asked

Is A182 F1 N+T stronger than A182 F1-A?

Yes. A182 F1 N+T has a typical yield strength of 330 MPa (47.9 ksi) against 300 MPa (43.5 ksi) for A182 F1-A — about 10% more. Tensile strength is 530 MPa (76.9 ksi) vs 500 MPa (72.5 ksi).

Which condition does FabDigit quote by default, A or N+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-A over A182 F1 N+T?

Pick A182 F1 N+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-A and A182 F1 N+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.