Steel 60CrMo3-1 +A vs 60CrMo3-1 +AC
Steel · 60CrMo3-1 temper comparison
60CrMo3-1 +A and 60CrMo3-1 +AC are two conditions of the same steel grade, 60CrMo3-1: +A (annealed) versus +AC (spheroidize annealed). The chemistry is identical, so every difference below comes from the condition. 60CrMo3-1 +A is the stronger of the two: yield strength 460 MPa (66.7 ksi) against 420 MPa (60.9 ksi) for 60CrMo3-1 +AC, about 10% more; tensile strength follows at 780 MPa (113 ksi) vs 700 MPa (102 ksi). In exchange, 60CrMo3-1 +AC is the more ductile: elongation 20% versus 15% for 60CrMo3-1 +A, and 60CrMo3-1 +A is harder (230 HB vs 205 HB). 60CrMo3-1 +A runs hotter in service (400°C vs 280°C continuous).
60CrMo3-1 +AChoose it when strength drives the design, or when the part sees heat.
60CrMo3-1 +ACChoose it when the part is bent, formed or impact-loaded.
60CrMo3-1 +A vs 60CrMo3-1 +AC: 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
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
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 · Compressive Strength 1,600 MPa232 ksi · Shear Strength 1,050 MPa152 ksi · Fracture Toughness (K_IC) 38 MPa·√m34.6 ksi·√in · 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.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 44 W/m·K25.4 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 · 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 %)
Formability (cold)
Same in both: Weldability 20 / 100 · 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 +A vs 60CrMo3-1 +AC — frequently asked
Is 60CrMo3-1 +A stronger than 60CrMo3-1 +AC?
Yes. 60CrMo3-1 +A has a typical yield strength of 460 MPa (66.7 ksi) against 420 MPa (60.9 ksi) for 60CrMo3-1 +AC — about 10% more. Tensile strength is 780 MPa (113 ksi) vs 700 MPa (102 ksi).
Which condition does FabDigit quote by default, +A or +AC?
+QT is the default 60CrMo3-1 condition in the FabDigit quote flow (neither +A nor +AC). 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 +A or 60CrMo3-1 +AC?
60CrMo3-1 +AC, by a small margin. Both rate good for machinability — 62/100 against 55/100 for 60CrMo3-1 +A.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 60CrMo3-1 +A and 60CrMo3-1 +AC 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.