Steel P6-ANN vs P6 NORM
Steel · P6 temper comparison
P6-ANN and P6 NORM are two conditions of the same steel grade, P6: ANN (annealed) versus NORM (normalized). The chemistry is identical, so every difference below comes from the condition. P6 NORM is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 415 MPa (60.2 ksi) for P6-ANN, about 33% more; tensile strength follows at 830 MPa (120 ksi) vs 655 MPa (95 ksi). In exchange, P6-ANN is the more ductile: elongation 20% versus 17% for P6 NORM, and P6 NORM is harder (245 HB vs 195 HB). P6-ANN runs hotter in service (300°C vs 200°C continuous). On the shop floor, P6-ANN welds better (good vs fair).
P6-ANNChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
P6 NORMChoose it when strength drives the design.
P6-ANN vs P6 NORM: 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 205 GPa29.7 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 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.8 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 Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 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: Castability 40 / 100 · 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) 2.4 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 45%
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.
P6-ANN vs P6 NORM — frequently asked
Is P6 NORM stronger than P6-ANN?
Yes. P6 NORM has a typical yield strength of 550 MPa (79.8 ksi) against 415 MPa (60.2 ksi) for P6-ANN — about 33% more. Tensile strength is 830 MPa (120 ksi) vs 655 MPa (95 ksi).
Which condition does FabDigit quote by default, ANN or NORM?
ANN is the default P6 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, P6-ANN or P6 NORM?
P6-ANN, by a small margin. Both rate good for machinability — 62/100 against 55/100 for P6 NORM; for welding the order is P6-ANN first (good, 60/100) then P6 NORM (fair, 50/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in P6-ANN and P6 NORM 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.