Steel 35CrMo Annealed vs 35CrMo Q&T
Steel · 35CrMo temper comparison
35CrMo Annealed and 35CrMo Q&T are two conditions of the same steel grade, 35CrMo: Annealed versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. 35CrMo Q&T is the stronger of the two: yield strength 880 MPa (128 ksi) against 420 MPa (60.9 ksi) for 35CrMo Annealed, about 110% more; tensile strength follows at 1,030 MPa (149 ksi) vs 680 MPa (98.6 ksi). In exchange, 35CrMo Annealed is the more ductile: elongation 24% versus 14% for 35CrMo Q&T, and 35CrMo Q&T is harder (320 HB vs 197 HB). On the shop floor, 35CrMo Annealed machines more easily (good vs fair) and 35CrMo Annealed welds better (fair vs poor).
35CrMo AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
35CrMo Q&TChoose it when strength drives the design.
35CrMo Annealed vs 35CrMo 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
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) 1,420°C2,588 °F · Liquidus Temperature 1,500°C2,732 °F
Thermal
How each material carries heat and how hot it can run.
Min Service Temperature
Same in both: Thermal Conductivity 44 W/m·K25.4 BTU/hr·ft·°F · Specific Heat Capacity 473 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 · Max Service Temperature (continuous) 480°C896 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 7.8 % IACS · Electrical Resistivity 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) -0.61 V · Corrosion Resistance 12 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 55 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 34 MJ/kg14,617 BTU/lb · Embodied Carbon (primary production) 2.3 kg CO₂/kg · Embodied Water 60 L/kg7.2 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.
35CrMo Annealed vs 35CrMo Q&T — frequently asked
Is 35CrMo Q&T stronger than 35CrMo Annealed?
Yes. 35CrMo Q&T has a typical yield strength of 880 MPa (128 ksi) against 420 MPa (60.9 ksi) for 35CrMo Annealed — about 110% more. Tensile strength is 1,030 MPa (149 ksi) vs 680 MPa (98.6 ksi).
Which condition does FabDigit quote by default, Annealed or Q&T?
HR is the default 35CrMo condition in the FabDigit quote flow (neither Annealed 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, 35CrMo Annealed or 35CrMo Q&T?
35CrMo Annealed. Its machinability rates good (62/100) against fair (42/100) for 35CrMo Q&T; for welding the order is 35CrMo Annealed first (fair, 45/100) then 35CrMo Q&T (poor, 30/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 35CrMo Annealed and 35CrMo 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.