Steel 2316 Annealed vs 2316 Prehard
Steel · 2316 temper comparison
2316 Annealed and 2316 Prehard are two conditions of the same steel grade, 2316: Annealed versus Prehard (pre-hardened). The chemistry is identical, so every difference below comes from the condition. 2316 Prehard is the stronger of the two: yield strength 850 MPa (123 ksi) against 520 MPa (75.4 ksi) for 2316 Annealed, about 63% more; tensile strength follows at 1,020 MPa (148 ksi) vs 780 MPa (113 ksi). In exchange, 2316 Annealed is the more ductile: elongation 18% versus 12% for 2316 Prehard, and 2316 Prehard is harder (300 HB vs 235 HB).
2316 AnnealedChoose it when the part is bent, formed or impact-loaded.
2316 PrehardChoose it when strength drives the design.
2316 Annealed vs 2316 Prehard: 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
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 215 GPa31.2 Msi · Shear Modulus 82 GPa11.9 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Reduction in Area 40% · Compressive Strength 900 MPa131 ksi · Shear Strength 620 MPa89.9 ksi · Fatigue Strength (Endurance Limit) 450 MPa65.3 ksi · Fracture Toughness (K_IC) 55 MPa·√m50.1 ksi·√in
Physical
Density and transition temperatures.
Same in both: Density 7.7 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,480°C2,696 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 20 W/m·K11.6 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.5 µm/m·K5.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.7 % IACS · Electrical Resistivity 6.5×10⁻⁷ Ω·m25.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.3 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Polishability
Same in both: Weldability 30 / 100 · Formability (cold) 15 / 100 · Castability 25 / 100 · Brazeability / Solderability 30 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 42 MJ/kg18,057 BTU/lb · Embodied Carbon (primary production) 3.4 kg CO₂/kg · Embodied Water 80 L/kg9.6 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.
2316 Annealed vs 2316 Prehard — frequently asked
Is 2316 Prehard stronger than 2316 Annealed?
Yes. 2316 Prehard has a typical yield strength of 850 MPa (123 ksi) against 520 MPa (75.4 ksi) for 2316 Annealed — about 63% more. Tensile strength is 1,020 MPa (148 ksi) vs 780 MPa (113 ksi).
Which condition does FabDigit quote by default, Annealed or Prehard?
Annealed is the default 2316 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, 2316 Annealed or 2316 Prehard?
2316 Annealed, by a small margin. Both rate fair for machinability — 50/100 against 42/100 for 2316 Prehard.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 2316 Annealed and 2316 Prehard 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.