Steel 60CrMo3-1 +QT vs 60CrMo3-1 +S
Steel · 60CrMo3-1 temper comparison
60CrMo3-1 +QT and 60CrMo3-1 +S are two conditions of the same steel grade, 60CrMo3-1: +QT (quenched and tempered) versus +S (treated for high shearability). The chemistry is identical, so every difference below comes from the condition. 60CrMo3-1 +QT is the stronger of the two: yield strength 1,520 MPa (220 ksi) against 480 MPa (69.6 ksi) for 60CrMo3-1 +S, about 3.2 times as much; tensile strength follows at 1,750 MPa (254 ksi) vs 820 MPa (119 ksi). In exchange, 60CrMo3-1 +S is the more ductile: elongation 13% versus 7% for 60CrMo3-1 +QT, and 60CrMo3-1 +QT is harder (480 HB vs 240 HB). On the shop floor, 60CrMo3-1 +S machines more easily (fair vs not recommended).
60CrMo3-1 +QTChoose it when strength drives the design.
60CrMo3-1 +SChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
60CrMo3-1 +QT vs 60CrMo3-1 +S: 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
Shear Strength
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 · Reduction in Area 30% · Compressive Strength 1,600 MPa232 ksi · Fatigue Strength (Endurance Limit) 750 MPa109 ksi · Fracture Toughness (K_IC) 38 MPa·√m34.6 ksi·√in · Charpy V-Notch Impact (RT) 12 J8.9 ft·lbf · Hardness, Rockwell C 50 HRC
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 1,480°C2,696 °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 250 J/g107 BTU/lb · Max Service Temperature (continuous) 280°C536 °F · 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) -0.6 V · Corrosion Resistance 11 / 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 25 / 100 · Polishability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 31 MJ/kg13,328 BTU/lb · Embodied Carbon (primary production) 2.3 kg CO₂/kg · Embodied Water 55 L/kg6.6 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.
60CrMo3-1 +QT vs 60CrMo3-1 +S — frequently asked
Is 60CrMo3-1 +QT stronger than 60CrMo3-1 +S?
Yes. 60CrMo3-1 +QT has a typical yield strength of 1,520 MPa (220 ksi) against 480 MPa (69.6 ksi) for 60CrMo3-1 +S — about 3.2 times as much. Tensile strength is 1,750 MPa (254 ksi) vs 820 MPa (119 ksi).
Which condition does FabDigit quote by default, +QT or +S?
+QT is the default 60CrMo3-1 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.
Which is easier to machine, 60CrMo3-1 +QT or 60CrMo3-1 +S?
60CrMo3-1 +S. Its machinability rates fair (50/100) against not recommended (10/100) for 60CrMo3-1 +QT; for welding the order is 60CrMo3-1 +S first (poor, 18/100) then 60CrMo3-1 +QT (not recommended, 10/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 60CrMo3-1 +QT and 60CrMo3-1 +S 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.