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Steel T10A-HR vs T10A-N

Steel · T10A temper comparison

T10A-HR and T10A-N are two conditions of the same steel grade, T10A: HR (hot rolled) versus N (normalized). The chemistry is identical, so every difference below comes from the condition. T10A-N is the stronger of the two: yield strength 560 MPa (81.2 ksi) against 480 MPa (69.6 ksi) for T10A-HR, about 17% more; tensile strength follows at 1,000 MPa (145 ksi) vs 850 MPa (123 ksi). In exchange, T10A-HR is the more ductile: elongation 12% versus 10% for T10A-N, and T10A-N is harder (295 HB vs 255 HB).

T10A-HRChoose it when the part is bent, formed or impact-loaded.

T10A-NChoose it when strength drives the design.

T10A-HR vs T10A-N: properties

T10A-HRT10A-N

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

850 MPa123 ksi
1,000 MPa145 ksi

Yield Strength (0.2% offset)

480 MPa69.6 ksi
560 MPa81.2 ksi

Elongation at Break

12%
10%

Reduction in Area

25%
20%

Compressive Strength

900 MPa131 ksi
1,080 MPa157 ksi

Shear Strength

540 MPa78.3 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

380 MPa55.1 ksi
440 MPa63.8 ksi

Charpy V-Notch Impact (RT)

12 J8.9 ft·lbf
10 J7.4 ft·lbf

Hardness, Brinell

255 HB
295 HB

Hardness, Vickers

268 HV
310 HV

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 · Hardness, Rockwell B 90 HRB

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

46 W/m·K26.6 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

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 · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

9.5 % IACS
9.2 % IACS

Electrical Resistivity

1.8×10⁻⁷ Ω·m7.09 µΩ·in
1.87×10⁻⁷ Ω·m7.36 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

40 / 100
34 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
40%

Weldability

12 / 100
10 / 100

Formability (cold)

22 / 100
15 / 100

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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleT10A

T10A-HR vs T10A-N — frequently asked

Is T10A-N stronger than T10A-HR?

Yes. T10A-N has a typical yield strength of 560 MPa (81.2 ksi) against 480 MPa (69.6 ksi) for T10A-HR — about 17% more. Tensile strength is 1,000 MPa (145 ksi) vs 850 MPa (123 ksi).

Which condition does FabDigit quote by default, HR or N?

Annealed is the default T10A condition in the FabDigit quote flow (neither HR nor N). 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-HR or T10A-N?

T10A-HR. Its machinability rates fair (40/100) against poor (34/100) for T10A-N.

Ready to make it?

Upload a CAD file and FabDigit prices the part in T10A-HR and T10A-N 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.