Stainless Steel 310H-CD vs 310H CF-Ann
Stainless Steel · 310H temper comparison
310H-CD and 310H CF-Ann are two conditions of the same stainless steel grade, 310H: CD (cold drawn) versus CF-Ann (cold Finished Annealed). The chemistry is identical, so every difference below comes from the condition. 310H-CD is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 310 MPa (45 ksi) for 310H CF-Ann, about 61% more; tensile strength follows at 760 MPa (110 ksi) vs 640 MPa (92.8 ksi). In exchange, 310H CF-Ann is the more ductile: elongation 40% versus 25% for 310H-CD, and 310H-CD is harder (240 HB vs 180 HB). 310H CF-Ann runs hotter in service (1,100°C vs 500°C continuous).
310H-CDChoose it when strength drives the design.
310H CF-AnnChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
310H-CD vs 310H CF-Ann: 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
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 160 GPa23.2 Msi · Poisson's Ratio 0.29
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.
Max Service Temperature (continuous)
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 285 J/g123 BTU/lb · 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).
Same in both: Galvanic Potential (seawater, vs SCE) -0.08 V · Corrosion Resistance 62 / 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: Brazeability / Solderability 60 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 85 MJ/kg36,543 BTU/lb · Embodied Carbon (primary production) 5.8 kg CO₂/kg · Embodied Water 160 L/kg19.2 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.
310H-CD vs 310H CF-Ann — frequently asked
Is 310H-CD stronger than 310H CF-Ann?
Yes. 310H-CD has a typical yield strength of 500 MPa (72.5 ksi) against 310 MPa (45 ksi) for 310H CF-Ann — about 61% more. Tensile strength is 760 MPa (110 ksi) vs 640 MPa (92.8 ksi).
Which condition does FabDigit quote by default, CD or CF-Ann?
Annealed is the default 310H condition in the FabDigit quote flow (neither CD nor CF-Ann). 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 310H-CD over 310H CF-Ann?
Pick 310H-CD when strength drives the design. Pick 310H CF-Ann when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 310H-CD and 310H CF-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.