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Steel A10-ANN vs A10 HT-60-62HRC

Steel · A10 temper comparison

A10-ANN and A10 HT-60-62HRC are two conditions of the same steel grade, A10: ANN (annealed) versus HT-60-62HRC (hardened & low-temper). The chemistry is identical, so every difference below comes from the condition. A10 HT-60-62HRC is the stronger of the two: yield strength 1,750 MPa (254 ksi) against 450 MPa (65.3 ksi) for A10-ANN, about 3.9 times as much; tensile strength follows at 2,100 MPa (305 ksi) vs 720 MPa (104 ksi). In exchange, A10-ANN is the more ductile: elongation 18% versus 2% for A10 HT-60-62HRC, and A10 HT-60-62HRC is harder (627 HB vs 229 HB). A10-ANN runs hotter in service (400°C vs 175°C continuous). On the shop floor, A10-ANN machines more easily (good vs poor).

A10-ANNChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

A10 HT-60-62HRCChoose it when strength drives the design.

A10-ANN vs A10 HT-60-62HRC: properties

A10-ANNA10 HT-60-62HRC

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

190 GPa27.6 Msi
195 GPa28.3 Msi

Tensile Strength (Ultimate)

720 MPa104 ksi
2,100 MPa305 ksi

Yield Strength (0.2% offset)

450 MPa65.3 ksi
1,750 MPa254 ksi

Elongation at Break

18%
2%

Reduction in Area

35%
4%

Compressive Strength

470 MPa68.2 ksi
2,600 MPa377 ksi

Shear Strength

450 MPa65.3 ksi
1,300 MPa189 ksi

Fatigue Strength (Endurance Limit)

340 MPa49.3 ksi
780 MPa113 ksi

Charpy V-Notch Impact (RT)

30 J22.1 ft·lbf
9 J6.6 ft·lbf

Hardness, Brinell

229 HB
627 HB

Hardness, Vickers

240 HV
730 HV

Same in both: Shear Modulus 74 GPa10.7 Msi · Bulk Modulus 158 GPa22.9 Msi · Poisson's Ratio 0.28 · Hardness, Rockwell B 98 HRB

Physical

Density and transition temperatures.

Same in both: Density 7.34 g/cm³0.27 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)

400°C752 °F
175°C347 °F

Same in both: Thermal Conductivity 30 W/m·K17.3 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 3 % IACS · Electrical Resistivity 5.8×10⁻⁷ Ω·m22.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 12 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

68 / 100
15 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
10%

Weldability

15 / 100
8 / 100

Formability (cold)

20 / 100
3 / 100

Same in both: Castability 25 / 100 · Brazeability / Solderability 35 / 100 · Polishability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 36 MJ/kg15,477 BTU/lb · Embodied Carbon (primary production) 2.6 kg CO₂/kg · Embodied Water 65 L/kg7.8 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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleA10

A10-ANN vs A10 HT-60-62HRC — frequently asked

Is A10 HT-60-62HRC stronger than A10-ANN?

Yes. A10 HT-60-62HRC has a typical yield strength of 1,750 MPa (254 ksi) against 450 MPa (65.3 ksi) for A10-ANN — about 3.9 times as much. Tensile strength is 2,100 MPa (305 ksi) vs 720 MPa (104 ksi).

Which condition does FabDigit quote by default, ANN or HT-60-62HRC?

ANN is the default A10 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, A10-ANN or A10 HT-60-62HRC?

A10-ANN. Its machinability rates good (68/100) against poor (15/100) for A10 HT-60-62HRC; for welding the order is A10-ANN first (poor, 15/100) then A10 HT-60-62HRC (not recommended, 8/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A10-ANN and A10 HT-60-62HRC 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.