Stainless Steel 310S Annealed vs 310S Hot Rolled
Stainless Steel · 310S temper comparison
310S Annealed and 310S Hot Rolled are two conditions of the same stainless steel grade, 310S: Annealed versus Hot Rolled. The chemistry is identical, so every difference below comes from the condition. 310S Hot Rolled is the stronger of the two: yield strength 275 MPa (39.9 ksi) against 255 MPa (37 ksi) for 310S Annealed, about 8% more. 310S Hot Rolled is harder — 180 HB against 170 HB for 310S Annealed — which matters for wear surfaces and threads.
310S Hot RolledChoose it when strength drives the design, or when surface hardness matters.
310S Annealed vs 310S Hot Rolled: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all stainless 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 stainless 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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 152 GPa22 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 7.98 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,450°C2,642 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 14.2 W/m·K8.2 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 15.9 µm/m·K8.8 µin/in·°F · Latent Heat of Fusion 280 J/g120 BTU/lb · Max Service Temperature (continuous) 1,050°C1,922 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.2 % IACS · Electrical Resistivity 7.8×10⁻⁷ Ω·m30.7 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.05 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 40% · Weldability 75 / 100 · Castability 55 / 100 · Brazeability / Solderability 60 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 85 MJ/kg36,543 BTU/lb · Embodied Carbon (primary production) 6.5 kg CO₂/kg · Embodied Water 120 L/kg14.4 gal/lb · Typical Recycled Content 55%
Strength versus weight
Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
310S Annealed vs 310S Hot Rolled — frequently asked
Is 310S Hot Rolled stronger than 310S Annealed?
Yes. 310S Hot Rolled has a typical yield strength of 275 MPa (39.9 ksi) against 255 MPa (37 ksi) for 310S Annealed — about 8% more. Tensile strength is 580 MPa (84.1 ksi) vs 570 MPa (82.7 ksi).
Which condition does FabDigit quote by default, Annealed or Hot Rolled?
Solution Annealed is the default 310S condition in the FabDigit quote flow (neither Annealed nor Hot Rolled). 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.
When should I choose 310S Annealed over 310S Hot Rolled?
Pick 310S Hot Rolled when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 310S Annealed and 310S Hot Rolled 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.