Steel T10A Annealed vs T10A-CD
Steel · T10A temper comparison
T10A Annealed and T10A-CD are two conditions of the same steel grade, T10A: Annealed versus CD (cold drawn). The chemistry is identical, so every difference below comes from the condition. T10A-CD is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 400 MPa (58 ksi) for T10A Annealed, about 55% more; tensile strength follows at 800 MPa (116 ksi) vs 700 MPa (102 ksi). In exchange, T10A Annealed is the more ductile: elongation 22% versus 10% for T10A-CD, and T10A-CD is harder (235 HB vs 187 HB). T10A Annealed runs hotter in service (300°C vs 200°C continuous).
T10A AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
T10A-CDChoose it when strength drives the design.
T10A Annealed vs T10A-CD: 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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 207 GPa30 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.81 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °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 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.5 µm/m·K6.4 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 9.5 % IACS · Electrical Resistivity 1.8×10⁻⁷ Ω·m7.09 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 10 / 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 50 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 30 MJ/kg12,898 BTU/lb · Embodied Carbon (primary production) 2.3 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 30%
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.
T10A Annealed vs T10A-CD — frequently asked
Is T10A-CD stronger than T10A Annealed?
Yes. T10A-CD has a typical yield strength of 620 MPa (89.9 ksi) against 400 MPa (58 ksi) for T10A Annealed — about 55% more. Tensile strength is 800 MPa (116 ksi) vs 700 MPa (102 ksi).
Which condition does FabDigit quote by default, Annealed or CD?
Annealed is the default T10A 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, T10A Annealed or T10A-CD?
T10A Annealed. Its machinability rates good (55/100) against fair (50/100) for T10A-CD.
Ready to make it?
Upload a CAD file and FabDigit prices the part in T10A Annealed and T10A-CD 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.