FabDigitFabDigit

Steel 60CrMnA-N vs 60CrMnA QT-44-48HRC

Steel · 60CrMnA temper comparison

60CrMnA-N and 60CrMnA QT-44-48HRC are two conditions of the same steel grade, 60CrMnA: N (normalized) 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 630 MPa (91.4 ksi) for 60CrMnA-N, about 133% more; tensile strength follows at 1,650 MPa (239 ksi) vs 1,000 MPa (145 ksi). In exchange, 60CrMnA-N is the more ductile: elongation 13% versus 8% for 60CrMnA QT-44-48HRC, and 60CrMnA QT-44-48HRC is harder (440 HB vs 300 HB). 60CrMnA-N runs hotter in service (400°C vs 200°C continuous) and 60CrMnA-N conducts electricity better (9 % IACS vs 8 % IACS). On the shop floor, 60CrMnA-N machines more easily (fair vs poor).

60CrMnA-NChoose 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-N vs 60CrMnA QT-44-48HRC: properties

60CrMnA-N60CrMnA QT-44-48HRC

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,000 MPa145 ksi
1,650 MPa239 ksi

Yield Strength (0.2% offset)

630 MPa91.4 ksi
1,470 MPa213 ksi

Elongation at Break

13%
8%

Reduction in Area

35%
28%

Compressive Strength

650 MPa94.3 ksi
1,200 MPa174 ksi

Shear Strength

620 MPa89.9 ksi
990 MPa144 ksi

Fatigue Strength (Endurance Limit)

440 MPa63.8 ksi
700 MPa102 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

22 J16.2 ft·lbf
16 J11.8 ft·lbf

Hardness, Brinell

300 HB
440 HB

Hardness, Rockwell C

31 HRC
46 HRC

Hardness, Vickers

315 HV
465 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

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.

Thermal Conductivity

44 W/m·K25.4 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Max Service Temperature (continuous)

400°C752 °F
200°C392 °F

Same in both: 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.

Electrical Conductivity

9 % IACS
8 % IACS

Electrical Resistivity

1.95×10⁻⁷ Ω·m7.68 µΩ·in
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

38 / 100
18 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
20%

Weldability

22 / 100
15 / 100

Formability (cold)

25 / 100
5 / 100

Same in both: 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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scale60CrMnA

60CrMnA-N vs 60CrMnA QT-44-48HRC — frequently asked

Is 60CrMnA QT-44-48HRC stronger than 60CrMnA-N?

Yes. 60CrMnA QT-44-48HRC has a typical yield strength of 1,470 MPa (213 ksi) against 630 MPa (91.4 ksi) for 60CrMnA-N — about 133% more. Tensile strength is 1,650 MPa (239 ksi) vs 1,000 MPa (145 ksi).

Which condition does FabDigit quote by default, N or QT-44-48HRC?

QT is the default 60CrMnA condition in the FabDigit quote flow (neither N nor QT-44-48HRC). 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-N or 60CrMnA QT-44-48HRC?

60CrMnA-N. Its machinability rates fair (38/100) against poor (18/100) for 60CrMnA QT-44-48HRC; for welding the order is 60CrMnA-N first (poor, 22/100) then 60CrMnA QT-44-48HRC (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 60CrMnA-N 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.