Steel 60CrMnA-QT vs 60CrMnA QT-44-48HRC
Steel · 60CrMnA temper comparison
60CrMnA-QT and 60CrMnA QT-44-48HRC are two conditions of the same steel grade, 60CrMnA: QT (quenched and tempered) versus QT-44-48HRC. The chemistry is identical, so every difference below comes from the condition. 60CrMnA QT-44-48HRC is the stronger of the two: yield strength 1,470 MPa (213 ksi) against 1,180 MPa (171 ksi) for 60CrMnA-QT, about 25% more; tensile strength follows at 1,650 MPa (239 ksi) vs 1,320 MPa (191 ksi). In exchange, 60CrMnA-QT is the more ductile: elongation 11% versus 8% for 60CrMnA QT-44-48HRC, and 60CrMnA QT-44-48HRC is harder (440 HB vs 390 HB). 60CrMnA-QT runs hotter in service (250°C vs 200°C continuous). On the shop floor, 60CrMnA-QT machines more easily (30 vs 18 out of 100).
60CrMnA-QTChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
60CrMnA QT-44-48HRCChoose it when strength drives the design.
60CrMnA-QT vs 60CrMnA QT-44-48HRC: 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)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
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 · Compressive Strength 1,200 MPa174 ksi
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.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 42 W/m·K24.3 BTU/hr·ft·°F · Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.4 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 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: Galvanic Potential (seawater, vs SCE) -0.6 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 %)
Formability (cold)
Same in both: Weldability 15 / 100 · Castability 40 / 100 · Brazeability / Solderability 30 / 100 · Polishability 60 / 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 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.
60CrMnA-QT vs 60CrMnA QT-44-48HRC — frequently asked
Is 60CrMnA QT-44-48HRC stronger than 60CrMnA-QT?
Yes. 60CrMnA QT-44-48HRC has a typical yield strength of 1,470 MPa (213 ksi) against 1,180 MPa (171 ksi) for 60CrMnA-QT — about 25% more. Tensile strength is 1,650 MPa (239 ksi) vs 1,320 MPa (191 ksi).
Which condition does FabDigit quote by default, QT or QT-44-48HRC?
QT is the default 60CrMnA 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, 60CrMnA-QT or 60CrMnA QT-44-48HRC?
60CrMnA-QT, by a small margin. Both rate poor for machinability — 30/100 against 18/100 for 60CrMnA QT-44-48HRC.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 60CrMnA-QT and 60CrMnA QT-44-48HRC 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.