Steel T5-ANN vs T5 HT-60
Steel · T5 temper comparison
T5-ANN and T5 HT-60 are two conditions of the same steel grade, T5: ANN (annealed) versus HT-60 (hardened & tempered 60–62 HRC). The chemistry is identical, so every difference below comes from the condition. Both yield at about 590 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (annealed versus hardened & tempered 60–62 HRC). T5 HT-60 is harder — 720 HV against 268 HV for T5-ANN — which matters for wear surfaces and threads. T5 HT-60 runs hotter in service (560°C vs 400°C continuous). On the shop floor, T5-ANN machines more easily (poor vs not recommended).
T5-ANNChoose it when the part is machined in volume.
T5 HT-60Choose it when surface hardness matters, or when the part sees heat.
T5-ANN vs T5 HT-60: 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.
Elastic (Young's) Modulus
Compressive Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Same in both: Shear Modulus 83 GPa12 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.29 · Tensile Strength (Ultimate) 900 MPa131 ksi · Yield Strength (0.2% offset) 590 MPa85.6 ksi · Elongation at Break 12% · Reduction in Area 22% · Shear Strength 560 MPa81.2 ksi · Hardness, Brinell 255 HB · Hardness, Rockwell B 100 HRB
Physical
Density and transition temperatures.
Same in both: Density 8.75 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,480°C2,696 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 22 W/m·K12.7 BTU/hr·ft·°F · Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11 µm/m·K6.1 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 3.1 % IACS · Electrical Resistivity 5.5×10⁻⁷ Ω·m21.7 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.55 V · Corrosion Resistance 18 / 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 15 / 100 · Formability (cold) 12 / 100 · Castability 25 / 100 · Brazeability / Solderability 55 / 100 · Polishability 60 / 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 kg CO₂/kg · Embodied Water 130 L/kg15.6 gal/lb · Typical Recycled Content 35%
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.
T5-ANN vs T5 HT-60 — frequently asked
What is the difference between T5-ANN and T5 HT-60?
T5-ANN and T5 HT-60 are two conditions of the same steel grade, T5: ANN (annealed) versus HT-60 (hardened & tempered 60–62 HRC). The chemistry is identical, so every difference below comes from the condition. Both yield at about 590 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (annealed versus hardened & tempered 60–62 HRC).
Which condition does FabDigit quote by default, ANN or HT-60?
ANN is the default T5 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, T5-ANN or T5 HT-60?
T5-ANN. Its machinability rates poor (32/100) against not recommended (8/100) for T5 HT-60.
Ready to make it?
Upload a CAD file and FabDigit prices the part in T5-ANN and T5 HT-60 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.