Steel A182 F3V-QT vs A182 F3V QT-SPWHT-MAX
Steel · A182 F3V temper comparison
A182 F3V-QT and A182 F3V QT-SPWHT-MAX are two conditions of the same steel grade, A182 F3V: QT (quenched and tempered) versus QT-SPWHT-MAX (Q&T + maximum simulated PWHT). The chemistry is identical, so every difference below comes from the condition. A182 F3V-QT is the stronger of the two: yield strength 505 MPa (73.2 ksi) against 470 MPa (68.2 ksi) for A182 F3V QT-SPWHT-MAX, about 7% more; tensile strength follows at 655 MPa (95 ksi) vs 620 MPa (89.9 ksi). A182 F3V-QT is harder — 210 HB against 195 HB for A182 F3V QT-SPWHT-MAX — which matters for wear surfaces and threads.
A182 F3V-QTChoose it when strength drives the design, or when surface hardness matters.
A182 F3V-QT vs A182 F3V QT-SPWHT-MAX: 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 F3V-QTA182 F3V QT-SPWHT-MAX
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 B
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 207 GPa30 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) 1,450°C2,642 °F · Liquidus Temperature 1,505°C2,741 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 36 W/m·K20.8 BTU/hr·ft·°F · 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) 482°C900 °F · Min Service Temperature -29°C-20 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 7.8 % IACS · Electrical Resistivity 2.2×10⁻⁷ Ω·m8.66 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 16 / 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: 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) 2.4 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 30%
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 F3V-QT vs A182 F3V QT-SPWHT-MAX — frequently asked
Is A182 F3V-QT stronger than A182 F3V QT-SPWHT-MAX?
Yes. A182 F3V-QT has a typical yield strength of 505 MPa (73.2 ksi) against 470 MPa (68.2 ksi) for A182 F3V QT-SPWHT-MAX — about 7% more. Tensile strength is 655 MPa (95 ksi) vs 620 MPa (89.9 ksi).
Which condition does FabDigit quote by default, QT or QT-SPWHT-MAX?
QT is the default A182 F3V 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 F3V-QT over A182 F3V QT-SPWHT-MAX?
Pick A182 F3V-QT 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 F3V-QT and A182 F3V QT-SPWHT-MAX 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.