Steel AerMet 310-ANN vs AerMet 310-AQ
Steel · AerMet 310 temper comparison
AerMet 310-ANN and AerMet 310-AQ are two conditions of the same steel grade, AerMet 310: ANN (annealed) versus AQ (as-quenched + cryogenic). The chemistry is identical, so every difference below comes from the condition. AerMet 310-AQ is the stronger of the two: yield strength 1,480 MPa (215 ksi) against 1,030 MPa (149 ksi) for AerMet 310-ANN, about 44% more; tensile strength follows at 1,900 MPa (276 ksi) vs 1,280 MPa (186 ksi). In exchange, AerMet 310-ANN is the more ductile: elongation 15% versus 8% for AerMet 310-AQ, and AerMet 310-AQ is harder (55 HRC vs 39 HRC). AerMet 310-ANN runs hotter in service (400°C vs 200°C continuous). On the shop floor, AerMet 310-ANN machines more easily (poor vs not recommended).
AerMet 310-ANNChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
AerMet 310-AQChoose it when strength drives the design.
AerMet 310-ANN vs AerMet 310-AQ: 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, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 194 GPa28.1 Msi · Shear Modulus 75 GPa10.9 Msi · Bulk Modulus 162 GPa23.5 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 8 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,470°C2,678 °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 450 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.3 µm/m·K6.3 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -73°C-99 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V
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: Brazeability / Solderability 30 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 100 MJ/kg42,992 BTU/lb · Embodied Carbon (primary production) 7.5 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 20%
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.
AerMet 310-ANN vs AerMet 310-AQ — frequently asked
Is AerMet 310-AQ stronger than AerMet 310-ANN?
Yes. AerMet 310-AQ has a typical yield strength of 1,480 MPa (215 ksi) against 1,030 MPa (149 ksi) for AerMet 310-ANN — about 44% more. Tensile strength is 1,900 MPa (276 ksi) vs 1,280 MPa (186 ksi).
Which condition does FabDigit quote by default, ANN or AQ?
A900 is the default AerMet 310 condition in the FabDigit quote flow (neither ANN nor AQ). 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, AerMet 310-ANN or AerMet 310-AQ?
AerMet 310-ANN. Its machinability rates poor (30/100) against not recommended (12/100) for AerMet 310-AQ; for welding the order is AerMet 310-ANN first (fair, 45/100) then AerMet 310-AQ (fair, 40/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in AerMet 310-ANN and AerMet 310-AQ 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.