Steel 25MnCr5 Hot Rolled vs 25MnCr5 Q&T
Steel · 25MnCr5 temper comparison
25MnCr5 Hot Rolled and 25MnCr5 Q&T are two conditions of the same steel grade, 25MnCr5: Hot Rolled versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. 25MnCr5 Q&T is the stronger of the two: yield strength 800 MPa (116 ksi) against 420 MPa (60.9 ksi) for 25MnCr5 Hot Rolled, about 90% more; tensile strength follows at 1,000 MPa (145 ksi) vs 680 MPa (98.6 ksi). In exchange, 25MnCr5 Hot Rolled is the more ductile: elongation 17% versus 12% for 25MnCr5 Q&T, and 25MnCr5 Q&T is harder (300 HB vs 210 HB). 25MnCr5 Q&T runs hotter in service (400°C vs 180°C continuous).
25MnCr5 Hot RolledChoose it when the part is bent, formed or impact-loaded.
25MnCr5 Q&TChoose it when strength drives the design, or when the part sees heat.
25MnCr5 Hot Rolled vs 25MnCr5 Q&T: 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 B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 80 GPa11.6 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) 1,425°C2,597 °F · Liquidus Temperature 1,490°C2,714 °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 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.5 µm/m·K6.4 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 Resistivity 2.1×10⁻⁷ Ω·m8.27 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 10 / 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 42 / 100 · Castability 30 / 100 · Brazeability / Solderability 60 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 29 MJ/kg12,468 BTU/lb · Embodied Carbon (primary production) 2.1 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.
25MnCr5 Hot Rolled vs 25MnCr5 Q&T — frequently asked
Is 25MnCr5 Q&T stronger than 25MnCr5 Hot Rolled?
Yes. 25MnCr5 Q&T has a typical yield strength of 800 MPa (116 ksi) against 420 MPa (60.9 ksi) for 25MnCr5 Hot Rolled — about 90% more. Tensile strength is 1,000 MPa (145 ksi) vs 680 MPa (98.6 ksi).
Which condition does FabDigit quote by default, Hot Rolled or Q&T?
Annealed is the default 25MnCr5 condition in the FabDigit quote flow (neither Hot Rolled nor Q&T). 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, 25MnCr5 Hot Rolled or 25MnCr5 Q&T?
25MnCr5 Q&T. Its machinability rates good (58/100) against fair (50/100) for 25MnCr5 Hot Rolled.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 25MnCr5 Hot Rolled and 25MnCr5 Q&T 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.