Steel A182 F3VCb-ANN vs A182 F3VCb QT-SPWHT
Steel · A182 F3VCb temper comparison
A182 F3VCb-ANN and A182 F3VCb QT-SPWHT are two conditions of the same steel grade, A182 F3VCb: ANN (annealed) versus QT-SPWHT (Q&T + simulated PWHT). The chemistry is identical, so every difference below comes from the condition. A182 F3VCb QT-SPWHT is the stronger of the two: yield strength 480 MPa (69.6 ksi) against 350 MPa (50.8 ksi) for A182 F3VCb-ANN, about 37% more; tensile strength follows at 620 MPa (89.9 ksi) vs 550 MPa (79.8 ksi). A182 F3VCb QT-SPWHT is harder — 190 HB against 170 HB for A182 F3VCb-ANN — which matters for wear surfaces and threads.
A182 F3VCb QT-SPWHTChoose it when strength drives the design, or when surface hardness matters.
A182 F3VCb-ANN vs A182 F3VCb QT-SPWHT: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
A182 F3VCb-ANNA182 F3VCb QT-SPWHT
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
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 7.85 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.
Thermal Conductivity
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 540°C1,004 °F · Min Service Temperature -30°C-22 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 2.2×10⁻⁷ Ω·m8.66 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 25 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 40 / 100 · Brazeability / Solderability 40 / 100 · 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) 2.3 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.
A182 F3VCb-ANN vs A182 F3VCb QT-SPWHT — frequently asked
Is A182 F3VCb QT-SPWHT stronger than A182 F3VCb-ANN?
Yes. A182 F3VCb QT-SPWHT has a typical yield strength of 480 MPa (69.6 ksi) against 350 MPa (50.8 ksi) for A182 F3VCb-ANN — about 37% more. Tensile strength is 620 MPa (89.9 ksi) vs 550 MPa (79.8 ksi).
Which condition does FabDigit quote by default, ANN or QT-SPWHT?
QT is the default A182 F3VCb condition in the FabDigit quote flow (neither ANN nor QT-SPWHT). 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, A182 F3VCb-ANN or A182 F3VCb QT-SPWHT?
A182 F3VCb-ANN. Its machinability rates good (55/100) against fair (48/100) for A182 F3VCb QT-SPWHT; for welding the order is A182 F3VCb-ANN first (fair, 50/100) then A182 F3VCb QT-SPWHT (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in A182 F3VCb-ANN and A182 F3VCb QT-SPWHT 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.