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Steel 6CrMnSi2Mo1V Normalized vs 6CrMnSi2Mo1V Q&T 50-52 HRC

Steel · 6CrMnSi2Mo1V temper comparison

6CrMnSi2Mo1V Normalized and 6CrMnSi2Mo1V Q&T 50-52 HRC are two conditions of the same steel grade, 6CrMnSi2Mo1V: Normalized versus Q&T 50-52 HRC (oil quench + temper ~380–420 °C). The chemistry is identical, so every difference below comes from the condition. 6CrMnSi2Mo1V Q&T 50-52 HRC is the stronger of the two: yield strength 1,480 MPa (215 ksi) against 800 MPa (116 ksi) for 6CrMnSi2Mo1V Normalized, about 85% more; tensile strength follows at 1,750 MPa (254 ksi) vs 1,150 MPa (167 ksi). In exchange, 6CrMnSi2Mo1V Normalized is the more ductile: elongation 10% versus 8% for 6CrMnSi2Mo1V Q&T 50-52 HRC, and 6CrMnSi2Mo1V Normalized is harder (340 HB vs 217 HB). 6CrMnSi2Mo1V Q&T 50-52 HRC runs hotter in service (320°C vs 200°C continuous). On the shop floor, 6CrMnSi2Mo1V Normalized machines more easily (poor vs not recommended).

6CrMnSi2Mo1V NormalizedChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

6CrMnSi2Mo1V Q&T 50-52 HRCChoose it when strength drives the design, or when the part sees heat.

6CrMnSi2Mo1V Normalized vs 6CrMnSi2Mo1V Q&T 50-52 HRC: properties

6CrMnSi2Mo1V Normalized6CrMnSi2Mo1V Q&T 50-52 HRC

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,150 MPa167 ksi
1,750 MPa254 ksi

Yield Strength (0.2% offset)

800 MPa116 ksi
1,480 MPa215 ksi

Elongation at Break

10%
8%

Reduction in Area

35%
25%

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

340 HB
217 HB

Hardness, Vickers

358 HV
530 HV

Same in both: Elastic (Young's) Modulus 207 GPa30 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Hardness, Rockwell B 97 HRB

Physical

Density and transition temperatures.

Same in both: Density 7.76 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,455°C2,651 °F

Thermal

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

Thermal Conductivity

23 W/m·K13.3 BTU/hr·ft·°F
22 W/m·K12.7 BTU/hr·ft·°F

Max Service Temperature (continuous)

200°C392 °F
320°C608 °F

Same in both: Specific Heat Capacity 460 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 Resistivity

6.4×10⁻⁷ Ω·m25.2 µΩ·in
6×10⁻⁷ Ω·m23.6 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

30 / 100
14 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
55%

Weldability

15 / 100
20 / 100

Formability (cold)

10 / 100
30 / 100

Same in both: Castability 25 / 100 · Brazeability / Solderability 35 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 36 MJ/kg15,477 BTU/lb · Embodied Carbon (primary production) 2.8 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 40%

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 scale6CrMnSi2Mo1V

6CrMnSi2Mo1V Normalized vs 6CrMnSi2Mo1V Q&T 50-52 HRC — frequently asked

Is 6CrMnSi2Mo1V Q&T 50-52 HRC stronger than 6CrMnSi2Mo1V Normalized?

Yes. 6CrMnSi2Mo1V Q&T 50-52 HRC has a typical yield strength of 1,480 MPa (215 ksi) against 800 MPa (116 ksi) for 6CrMnSi2Mo1V Normalized — about 85% more. Tensile strength is 1,750 MPa (254 ksi) vs 1,150 MPa (167 ksi).

Which condition does FabDigit quote by default, Normalized or Q&T 50-52 HRC?

Annealed is the default 6CrMnSi2Mo1V condition in the FabDigit quote flow (neither Normalized nor Q&T 50-52 HRC). 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, 6CrMnSi2Mo1V Normalized or 6CrMnSi2Mo1V Q&T 50-52 HRC?

6CrMnSi2Mo1V Normalized. Its machinability rates poor (30/100) against not recommended (14/100) for 6CrMnSi2Mo1V Q&T 50-52 HRC; for welding the order is 6CrMnSi2Mo1V Q&T 50-52 HRC first (poor, 20/100) then 6CrMnSi2Mo1V Normalized (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6CrMnSi2Mo1V Normalized and 6CrMnSi2Mo1V Q&T 50-52 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.