Steel GCr15 Hot Rolled vs GCr15 Normalized
Steel · GCr15 temper comparison
GCr15 Hot Rolled and GCr15 Normalized are two conditions of the same steel grade, GCr15: Hot Rolled versus Normalized. The chemistry is identical, so every difference below comes from the condition. GCr15 Normalized is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 550 MPa (79.8 ksi) for GCr15 Hot Rolled, about 18% more; tensile strength follows at 1,100 MPa (160 ksi) vs 900 MPa (131 ksi). In exchange, GCr15 Hot Rolled is the more ductile: elongation 12% versus 10% for GCr15 Normalized, and GCr15 Normalized is harder (320 HB vs 260 HB). GCr15 Normalized runs hotter in service (200°C vs 150°C continuous).
GCr15 Hot RolledChoose it when the part is bent, formed or impact-loaded.
GCr15 NormalizedChoose it when strength drives the design, or when the part sees heat.
GCr15 Hot Rolled vs GCr15 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.
GCr15 Hot RolledGCr15 Normalized
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, 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 · Hardness, Rockwell B 92 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.81 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,465°C2,669 °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 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.9 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -40°C-40 °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) -0.61 V · Corrosion Resistance 14 / 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 12 / 100 · Castability 25 / 100 · Brazeability / Solderability 40 / 100 · Polishability 85 / 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 25%
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.
GCr15 Hot Rolled vs GCr15 Normalized — frequently asked
Is GCr15 Normalized stronger than GCr15 Hot Rolled?
Yes. GCr15 Normalized has a typical yield strength of 650 MPa (94.3 ksi) against 550 MPa (79.8 ksi) for GCr15 Hot Rolled — about 18% more. Tensile strength is 1,100 MPa (160 ksi) vs 900 MPa (131 ksi).
Which condition does FabDigit quote by default, Hot Rolled or Normalized?
Annealed is the default GCr15 condition in the FabDigit quote flow (neither Hot Rolled 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, GCr15 Hot Rolled or GCr15 Normalized?
GCr15 Hot Rolled, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for GCr15 Normalized.
Ready to make it?
Upload a CAD file and FabDigit prices the part in GCr15 Hot Rolled and GCr15 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.