Steel Ingot Iron Annealed vs Ingot Iron Hot Rolled
Steel · Ingot Iron temper comparison
Ingot Iron Annealed and Ingot Iron Hot Rolled are two conditions of the same steel grade, Ingot Iron: Annealed versus Hot Rolled. The chemistry is identical, so every difference below comes from the condition. Ingot Iron Hot Rolled is the stronger of the two: yield strength 185 MPa (26.8 ksi) against 150 MPa (21.8 ksi) for Ingot Iron Annealed, about 23% more; tensile strength follows at 310 MPa (45 ksi) vs 275 MPa (39.9 ksi). In exchange, Ingot Iron Annealed is the more ductile: elongation 45% versus 35% for Ingot Iron Hot Rolled, and Ingot Iron Hot Rolled is harder (85 HB vs 70 HB).
Ingot Iron AnnealedChoose it when the part is bent, formed or impact-loaded.
Ingot Iron Hot RolledChoose it when strength drives the design.
Ingot Iron Annealed vs Ingot Iron Hot Rolled: 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.
Ingot Iron AnnealedIngot Iron Hot Rolled
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 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 170 GPa24.7 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.87 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,535°C2,795 °F · Liquidus Temperature 1,538°C2,800 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 455 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 247 J/g106 BTU/lb · Max Service Temperature (continuous) 450°C842 °F · Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Same in both: Electrical Resistivity 1×10⁻⁷ Ω·m3.94 µΩ·in
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 %)
Formability (cold)
Same in both: Weldability 95 / 100 · Castability 35 / 100 · Brazeability / Solderability 85 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 28 MJ/kg12,038 BTU/lb · Embodied Carbon (primary production) 2.1 kg CO₂/kg · Embodied Water 40 L/kg4.8 gal/lb · Typical Recycled Content 15%
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.
Ingot Iron Annealed vs Ingot Iron Hot Rolled — frequently asked
Is Ingot Iron Hot Rolled stronger than Ingot Iron Annealed?
Yes. Ingot Iron Hot Rolled has a typical yield strength of 185 MPa (26.8 ksi) against 150 MPa (21.8 ksi) for Ingot Iron Annealed — about 23% more. Tensile strength is 310 MPa (45 ksi) vs 275 MPa (39.9 ksi).
Which condition does FabDigit quote by default, Annealed or Hot Rolled?
Annealed is the default Ingot Iron 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, Ingot Iron Annealed or Ingot Iron Hot Rolled?
Ingot Iron Hot Rolled, by a small margin. Both rate fair for machinability — 50/100 against 45/100 for Ingot Iron Annealed.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ingot Iron Annealed and Ingot Iron Hot Rolled 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.