Steel EN9 Annealed vs EN9 Normalized
Steel · EN9 temper comparison
EN9 Annealed and EN9 Normalized are two conditions of the same steel grade, EN9: Annealed versus Normalized. The chemistry is identical, so every difference below comes from the condition. EN9 Normalized is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 310 MPa (45 ksi) for EN9 Annealed, about 23% more; tensile strength follows at 680 MPa (98.6 ksi) vs 580 MPa (84.1 ksi). In exchange, EN9 Annealed is the more ductile: elongation 22% versus 16% for EN9 Normalized, and EN9 Normalized is harder (200 HB vs 170 HB).
EN9 AnnealedChoose it when the part is bent, formed or impact-loaded.
EN9 NormalizedChoose it when strength drives the design.
EN9 Annealed vs EN9 Normalized: 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)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
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
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.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.62 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 %)
Weldability
Formability (cold)
Same in both: Castability 45 / 100 · Brazeability / Solderability 55 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2 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.
EN9 Annealed vs EN9 Normalized — frequently asked
Is EN9 Normalized stronger than EN9 Annealed?
Yes. EN9 Normalized has a typical yield strength of 380 MPa (55.1 ksi) against 310 MPa (45 ksi) for EN9 Annealed — about 23% more. Tensile strength is 680 MPa (98.6 ksi) vs 580 MPa (84.1 ksi).
Which condition does FabDigit quote by default, Annealed or Normalized?
HR is the default EN9 condition in the FabDigit quote flow (neither Annealed nor Normalized). 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, EN9 Annealed or EN9 Normalized?
EN9 Annealed. Its machinability rates good (55/100) against fair (50/100) for EN9 Normalized; for welding the order is EN9 Annealed first (fair, 40/100) then EN9 Normalized (poor, 32/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in EN9 Annealed and EN9 Normalized 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.