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Steel A217 WC6-A vs A217 WC6 Q+T

Steel · A217 WC6 temper comparison

A217 WC6-A and A217 WC6 Q+T are two conditions of the same steel grade, A217 WC6: A (solution annealed) 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 265 MPa (38.4 ksi) for A217 WC6-A, about 57% more; tensile strength follows at 600 MPa (87 ksi) vs 480 MPa (69.6 ksi). In exchange, A217 WC6-A is the more ductile: elongation 28% versus 22% for A217 WC6 Q+T, and A217 WC6 Q+T is harder (195 HB vs 140 HB). A217 WC6 Q+T runs hotter in service (540°C vs 450°C continuous).

A217 WC6-AChoose it when the part is bent, formed or impact-loaded.

A217 WC6 Q+TChoose it when strength drives the design, or when the part sees heat.

A217 WC6-A vs A217 WC6 Q+T: properties

A217 WC6-AA217 WC6 Q+T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

480 MPa69.6 ksi
600 MPa87 ksi

Yield Strength (0.2% offset)

265 MPa38.4 ksi
415 MPa60.2 ksi

Elongation at Break

28%
22%

Reduction in Area

55%
52%

Compressive Strength

265 MPa38.4 ksi
345 MPa50 ksi

Shear Strength

330 MPa47.9 ksi
380 MPa55.1 ksi

Fatigue Strength (Endurance Limit)

210 MPa30.5 ksi
265 MPa38.4 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

45 J33.2 ft·lbf
70 J51.6 ft·lbf

Hardness, Brinell

140 HB
195 HB

Hardness, Rockwell B

76 HRB
92 HRB

Hardness, Vickers

147 HV
180 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) 1,425°C2,597 °F · Liquidus Temperature 1,505°C2,741 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

41 W/m·K23.7 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F

Max Service Temperature (continuous)

450°C842 °F
540°C1,004 °F

Same in both: 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 · Min Service Temperature -29°C-20 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8 % IACS
7.8 % IACS

Electrical Resistivity

2.15×10⁻⁷ Ω·m8.46 µΩ·in
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

62 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

68%
55%

Weldability

65 / 100
60 / 100

Formability (cold)

28 / 100
20 / 100

Same in both: 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-A vs A217 WC6 Q+T — frequently asked

Is A217 WC6 Q+T stronger than A217 WC6-A?

Yes. A217 WC6 Q+T has a typical yield strength of 415 MPa (60.2 ksi) against 265 MPa (38.4 ksi) for A217 WC6-A — about 57% more. Tensile strength is 600 MPa (87 ksi) vs 480 MPa (69.6 ksi).

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

N+T is the default A217 WC6 condition in the FabDigit quote flow (neither A 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.

Which is easier to machine, A217 WC6-A or A217 WC6 Q+T?

A217 WC6-A, by a small margin. Both rate good for machinability — 62/100 against 55/100 for A217 WC6 Q+T; for welding the order is A217 WC6-A first (good, 65/100) then A217 WC6 Q+T (good, 60/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A217 WC6-A 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.