Steel AerMet 310-A900 vs AerMet 310-ANN
Steel · AerMet 310 temper comparison
AerMet 310-A900 and AerMet 310-ANN are two conditions of the same steel grade, AerMet 310: A900 (hardened + aged 482 °C (900 °F) 5 h, air cool) versus ANN (annealed). The chemistry is identical, so every difference below comes from the condition. AerMet 310-A900 is the stronger of the two: yield strength 1,960 MPa (284 ksi) against 1,030 MPa (149 ksi) for AerMet 310-ANN, about 90% more; tensile strength follows at 2,140 MPa (310 ksi) vs 1,280 MPa (186 ksi). In exchange, AerMet 310-ANN is the more ductile: elongation 15% versus 10% for AerMet 310-A900, and AerMet 310-A900 is harder (57 HRC vs 39 HRC). On the shop floor, AerMet 310-ANN machines more easily (30 vs 15 out of 100).
AerMet 310-A900Choose it when strength drives the design.
AerMet 310-ANNChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
AerMet 310-A900 vs AerMet 310-ANN: 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
Fracture Toughness (K_IC)
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 · Compressive Strength 2,050 MPa297 ksi · Shear Strength 1,290 MPa187 ksi · Fatigue Strength (Endurance Limit) 800 MPa116 ksi · Charpy V-Notch Impact (RT) 24 J17.7 ft·lbf
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.
Same in both: Thermal Conductivity 20 W/m·K11.6 BTU/hr·ft·°F · 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 · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -73°C-99 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 6.5×10⁻⁷ Ω·m25.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 25 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Same in both: Weldability 45 / 100 · Formability (cold) 8 / 100 · 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-A900 vs AerMet 310-ANN — frequently asked
Is AerMet 310-A900 stronger than AerMet 310-ANN?
Yes. AerMet 310-A900 has a typical yield strength of 1,960 MPa (284 ksi) against 1,030 MPa (149 ksi) for AerMet 310-ANN — about 90% more. Tensile strength is 2,140 MPa (310 ksi) vs 1,280 MPa (186 ksi).
Which condition does FabDigit quote by default, A900 or ANN?
A900 is the default AerMet 310 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, AerMet 310-A900 or AerMet 310-ANN?
AerMet 310-ANN, by a small margin. Both rate poor for machinability — 30/100 against 15/100 for AerMet 310-A900.
Ready to make it?
Upload a CAD file and FabDigit prices the part in AerMet 310-A900 and AerMet 310-ANN 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.