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Steel A217 WC6 N+T vs A217 WC6 Q+T

Steel · A217 WC6 temper comparison

A217 WC6 N+T and A217 WC6 Q+T are two conditions of the same steel grade, A217 WC6: N+T (normalized and tempered) 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 345 MPa (50 ksi) for A217 WC6 N+T, about 20% more; tensile strength follows at 600 MPa (87 ksi) vs 550 MPa (79.8 ksi). A217 WC6 Q+T is harder — 195 HB against 170 HB for A217 WC6 N+T — which matters for wear surfaces and threads.

A217 WC6 Q+TChoose it when strength drives the design, or when surface hardness matters.

A217 WC6 N+T vs A217 WC6 Q+T: properties

A217 WC6 N+TA217 WC6 Q+T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

550 MPa79.8 ksi
600 MPa87 ksi

Yield Strength (0.2% offset)

345 MPa50 ksi
415 MPa60.2 ksi

Elongation at Break

24%
22%

Reduction in Area

48%
52%

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
265 MPa38.4 ksi

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
70 J51.6 ft·lbf

Hardness, Brinell

170 HB
195 HB

Hardness, Rockwell B

87 HRB
92 HRB

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 · Compressive Strength 345 MPa50 ksi · Shear Strength 380 MPa55.1 ksi · Fracture Toughness (K_IC) 110 MPa·√m100 ksi·√in · Hardness, Vickers 180 HV

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 Rating (AISI 1212 = 100 %)

60%
55%

Same in both: Machinability 55 / 100 · Weldability 60 / 100 · 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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleA217 WC6

A217 WC6 N+T vs A217 WC6 Q+T — frequently asked

Is A217 WC6 Q+T stronger than A217 WC6 N+T?

Yes. A217 WC6 Q+T has a typical yield strength of 415 MPa (60.2 ksi) against 345 MPa (50 ksi) for A217 WC6 N+T — about 20% more. Tensile strength is 600 MPa (87 ksi) vs 550 MPa (79.8 ksi).

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

N+T is the default A217 WC6 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 A217 WC6 N+T over A217 WC6 Q+T?

Pick A217 WC6 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 A217 WC6 N+T 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.