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Steel 5CrMnMo Annealed vs 5CrMnMo QT 41-44 HRC

Steel · 5CrMnMo temper comparison

5CrMnMo Annealed and 5CrMnMo QT 41-44 HRC are two conditions of the same steel grade, 5CrMnMo: Annealed versus QT 41-44 HRC. The chemistry is identical, so every difference below comes from the condition. 5CrMnMo QT 41-44 HRC is the stronger of the two: yield strength 1,230 MPa (178 ksi) against 500 MPa (72.5 ksi) for 5CrMnMo Annealed, about 146% more; tensile strength follows at 1,400 MPa (203 ksi) vs 780 MPa (113 ksi). In exchange, 5CrMnMo Annealed is the more ductile: elongation 18% versus 10% for 5CrMnMo QT 41-44 HRC, and 5CrMnMo QT 41-44 HRC is harder (395 HB vs 220 HB). 5CrMnMo QT 41-44 HRC runs hotter in service (470°C vs 400°C continuous). On the shop floor, 5CrMnMo Annealed machines more easily (good vs poor).

5CrMnMo AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

5CrMnMo QT 41-44 HRCChoose it when strength drives the design, or when the part sees heat.

5CrMnMo Annealed vs 5CrMnMo QT 41-44 HRC: properties

5CrMnMo Annealed5CrMnMo QT 41-44 HRC

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

780 MPa113 ksi
1,400 MPa203 ksi

Yield Strength (0.2% offset)

500 MPa72.5 ksi
1,230 MPa178 ksi

Elongation at Break

18%
10%

Reduction in Area

40%
38%

Fatigue Strength (Endurance Limit)

350 MPa50.8 ksi
580 MPa84.1 ksi

Fracture Toughness (K_IC)

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

Charpy V-Notch Impact (RT)

45 J33.2 ft·lbf
17 J12.5 ft·lbf

Hardness, Brinell

220 HB
395 HB

Hardness, Rockwell C

18 HRC
42 HRC

Hardness, Vickers

230 HV
412 HV

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Compressive Strength 520 MPa75.4 ksi · Shear Strength 470 MPa68.2 ksi · Hardness, Rockwell B 97 HRB

Physical

Density and transition temperatures.

Same in both: Density 7.8 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,470°C2,678 °F

Thermal

How each material carries heat and how hot it can run.

Max Service Temperature (continuous)

400°C752 °F
470°C878 °F

Same in both: Thermal Conductivity 34 W/m·K19.6 BTU/hr·ft·°F · Specific Heat Capacity 460 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 -20°C-4 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 7.2 % IACS · Electrical Resistivity 2.4×10⁻⁷ Ω·m9.45 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Corrosion Resistance 12 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

55 / 100
20 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 55% · Weldability 35 / 100 · Formability (cold) 30 / 100 · Castability 25 / 100 · Brazeability / Solderability 35 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 34 MJ/kg14,617 BTU/lb · Embodied Carbon (primary production) 2.6 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 45%

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 scale5CrMnMo

5CrMnMo Annealed vs 5CrMnMo QT 41-44 HRC — frequently asked

Is 5CrMnMo QT 41-44 HRC stronger than 5CrMnMo Annealed?

Yes. 5CrMnMo QT 41-44 HRC has a typical yield strength of 1,230 MPa (178 ksi) against 500 MPa (72.5 ksi) for 5CrMnMo Annealed — about 146% more. Tensile strength is 1,400 MPa (203 ksi) vs 780 MPa (113 ksi).

Which condition does FabDigit quote by default, Annealed or QT 41-44 HRC?

Annealed is the default 5CrMnMo 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, 5CrMnMo Annealed or 5CrMnMo QT 41-44 HRC?

5CrMnMo Annealed. Its machinability rates good (55/100) against poor (20/100) for 5CrMnMo QT 41-44 HRC.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 5CrMnMo Annealed and 5CrMnMo QT 41-44 HRC 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.