FabDigitFabDigit

Steel SUP10 Normalized vs SUP10 Q&T

Steel · SUP10 temper comparison

SUP10 Normalized and SUP10 Q&T are two conditions of the same steel grade, SUP10: Normalized versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. SUP10 Q&T is the stronger of the two: yield strength 1,300 MPa (189 ksi) against 660 MPa (95.7 ksi) for SUP10 Normalized, about 97% more; tensile strength follows at 1,450 MPa (210 ksi) vs 1,000 MPa (145 ksi). In exchange, SUP10 Normalized is the more ductile: elongation 13% versus 9% for SUP10 Q&T, and SUP10 Q&T is harder (415 HB vs 300 HB). SUP10 Q&T runs hotter in service (230°C vs 200°C continuous). On the shop floor, SUP10 Normalized machines more easily (fair vs poor) and SUP10 Normalized welds better (poor vs not recommended).

SUP10 NormalizedChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

SUP10 Q&TChoose it when strength drives the design, or when the part sees heat.

SUP10 Normalized vs SUP10 Q&T: properties

SUP10 NormalizedSUP10 Q&T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,000 MPa145 ksi
1,450 MPa210 ksi

Yield Strength (0.2% offset)

660 MPa95.7 ksi
1,300 MPa189 ksi

Elongation at Break

13%
9%

Reduction in Area

35%
32%

Shear Strength

600 MPa87 ksi
870 MPa126 ksi

Fatigue Strength (Endurance Limit)

450 MPa65.3 ksi
620 MPa89.9 ksi

Charpy V-Notch Impact (RT)

26 J19.2 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

300 HB
415 HB

Hardness, Vickers

315 HV
440 HV

Same in both: Elastic (Young's) Modulus 206 GPa29.9 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Hardness, Rockwell B 94 HRB

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,490°C2,714 °F

Thermal

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

Max Service Temperature (continuous)

200°C392 °F
230°C446 °F

Same in both: Thermal Conductivity 44 W/m·K25.4 BTU/hr·ft·°F · Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.5 µm/m·K6.9 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 7.5 % IACS · Electrical Resistivity 2.3×10⁻⁷ Ω·m9.06 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.62 V · Corrosion Resistance 12 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

45 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
25%

Weldability

25 / 100
10 / 100

Formability (cold)

25 / 100
8 / 100

Same in both: Castability 25 / 100 · Brazeability / Solderability 50 / 100 · Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 30 MJ/kg12,898 BTU/lb · Embodied Carbon (primary production) 2.2 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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleSUP10

SUP10 Normalized vs SUP10 Q&T — frequently asked

Is SUP10 Q&T stronger than SUP10 Normalized?

Yes. SUP10 Q&T has a typical yield strength of 1,300 MPa (189 ksi) against 660 MPa (95.7 ksi) for SUP10 Normalized — about 97% more. Tensile strength is 1,450 MPa (210 ksi) vs 1,000 MPa (145 ksi).

Which condition does FabDigit quote by default, Normalized or Q&T?

Annealed is the default SUP10 condition in the FabDigit quote flow (neither Normalized 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, SUP10 Normalized or SUP10 Q&T?

SUP10 Normalized. Its machinability rates fair (45/100) against poor (25/100) for SUP10 Q&T; for welding the order is SUP10 Normalized first (poor, 25/100) then SUP10 Q&T (not recommended, 10/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in SUP10 Normalized and SUP10 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.