Steel A217 WC6 N+T+PWHT vs A217 WC6 Q+T
Steel · A217 WC6 temper comparison
A217 WC6 N+T+PWHT and A217 WC6 Q+T are two conditions of the same steel grade, A217 WC6: N+T+PWHT (N+T + simulated post-weld heat treatment) versus Q+T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. A217 WC6 Q+T is the stronger of the two: yield strength 415 MPa (60.2 ksi) against 320 MPa (46.4 ksi) for A217 WC6 N+T+PWHT, about 30% more; tensile strength follows at 600 MPa (87 ksi) vs 520 MPa (75.4 ksi). In exchange, A217 WC6 N+T+PWHT is the more ductile: elongation 26% versus 22% for A217 WC6 Q+T, and A217 WC6 Q+T is harder (195 HB vs 160 HB).
A217 WC6 N+T+PWHTChoose it when the part is bent, formed or impact-loaded.
A217 WC6 Q+TChoose it when strength drives the design.
A217 WC6 N+T+PWHT vs A217 WC6 Q+T: 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
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 · Reduction in Area 52%
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °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 40 W/m·K23.1 BTU/hr·ft·°F · Specific Heat Capacity 465 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 270 J/g116 BTU/lb · Max Service Temperature (continuous) 540°C1,004 °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: Corrosion Resistance 15 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Same in both: Formability (cold) 20 / 100 · Castability 70 / 100 · Brazeability / Solderability 45 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 26 MJ/kg11,178 BTU/lb · Embodied Carbon (primary production) 2.1 kg CO₂/kg · Embodied Water 55 L/kg6.6 gal/lb · Typical Recycled Content 85%
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.
A217 WC6 N+T+PWHT vs A217 WC6 Q+T — frequently asked
Is A217 WC6 Q+T stronger than A217 WC6 N+T+PWHT?
Yes. A217 WC6 Q+T has a typical yield strength of 415 MPa (60.2 ksi) against 320 MPa (46.4 ksi) for A217 WC6 N+T+PWHT — about 30% more. Tensile strength is 600 MPa (87 ksi) vs 520 MPa (75.4 ksi).
Which condition does FabDigit quote by default, N+T+PWHT or Q+T?
N+T is the default A217 WC6 condition in the FabDigit quote flow (neither N+T+PWHT nor Q+T). 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 A217 WC6 N+T+PWHT over A217 WC6 Q+T?
Pick A217 WC6 N+T+PWHT when the part is bent, formed or impact-loaded. Pick A217 WC6 Q+T when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A217 WC6 N+T+PWHT and A217 WC6 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.