Steel SUP10 Hot Rolled vs SUP10 Q&T
Steel · SUP10 temper comparison
SUP10 Hot Rolled and SUP10 Q&T are two conditions of the same steel grade, SUP10: Hot Rolled 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 560 MPa (81.2 ksi) for SUP10 Hot Rolled, about 132% more; tensile strength follows at 1,450 MPa (210 ksi) vs 900 MPa (131 ksi). In exchange, SUP10 Hot Rolled is the more ductile: elongation 14% versus 9% for SUP10 Q&T, and SUP10 Q&T is harder (415 HB vs 260 HB). SUP10 Q&T runs hotter in service (230°C vs 200°C continuous). On the shop floor, SUP10 Hot Rolled machines more easily (fair vs poor) and SUP10 Hot Rolled welds better (poor vs not recommended).
SUP10 Hot RolledChoose 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 Hot Rolled vs SUP10 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
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
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 · Charpy V-Notch Impact (RT) 20 J14.8 ft·lbf · 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)
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
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
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.
SUP10 Hot Rolled vs SUP10 Q&T — frequently asked
Is SUP10 Q&T stronger than SUP10 Hot Rolled?
Yes. SUP10 Q&T has a typical yield strength of 1,300 MPa (189 ksi) against 560 MPa (81.2 ksi) for SUP10 Hot Rolled — about 132% more. Tensile strength is 1,450 MPa (210 ksi) vs 900 MPa (131 ksi).
Which condition does FabDigit quote by default, Hot Rolled or Q&T?
Annealed is the default SUP10 condition in the FabDigit quote flow (neither Hot Rolled 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 Hot Rolled or SUP10 Q&T?
SUP10 Hot Rolled. Its machinability rates fair (48/100) against poor (25/100) for SUP10 Q&T; for welding the order is SUP10 Hot Rolled first (poor, 30/100) then SUP10 Q&T (not recommended, 10/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in SUP10 Hot Rolled 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.