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Steel 1146 Annealed vs 1146 Normalized

Steel · 1146 temper comparison

1146 Annealed and 1146 Normalized are two conditions of the same steel grade, 1146: Annealed versus Normalized. The chemistry is identical, so every difference below comes from the condition. 1146 Normalized is the stronger of the two: yield strength 345 MPa (50 ksi) against 300 MPa (43.5 ksi) for 1146 Annealed, about 15% more; tensile strength follows at 620 MPa (89.9 ksi) vs 550 MPa (79.8 ksi). In exchange, 1146 Annealed is the more ductile: elongation 24% versus 20% for 1146 Normalized, and 1146 Normalized is harder (179 HB vs 156 HB).

1146 AnnealedChoose it when the part is bent, formed or impact-loaded.

1146 NormalizedChoose it when strength drives the design.

1146 Annealed vs 1146 Normalized: properties

1146 Annealed1146 Normalized

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

550 MPa79.8 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
345 MPa50 ksi

Elongation at Break

24%
20%

Reduction in Area

45%
43%

Shear Strength

375 MPa54.4 ksi
420 MPa60.9 ksi

Fatigue Strength (Endurance Limit)

245 MPa35.5 ksi
280 MPa40.6 ksi

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
22 J16.2 ft·lbf

Hardness, Brinell

156 HB
179 HB

Hardness, Rockwell B

82 HRB
89 HRB

Same in both: Elastic (Young's) Modulus 200 GPa29 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 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,490°C2,714 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

50 W/m·K28.9 BTU/hr·ft·°F
49 W/m·K28.3 BTU/hr·ft·°F

Max Service Temperature (continuous)

400°C752 °F
425°C797 °F

Same in both: Specific Heat Capacity 486 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.65×10⁻⁷ Ω·m6.5 µΩ·in
1.7×10⁻⁷ Ω·m6.69 µΩ·in

Same in both: Electrical Conductivity 10 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

64 / 100
68 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
70%

Weldability

32 / 100
28 / 100

Formability (cold)

45 / 100
35 / 100

Same in both: Brazeability / Solderability 55 / 100 · Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 35 L/kg4.2 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 scale1146

1146 Annealed vs 1146 Normalized — frequently asked

Is 1146 Normalized stronger than 1146 Annealed?

Yes. 1146 Normalized has a typical yield strength of 345 MPa (50 ksi) against 300 MPa (43.5 ksi) for 1146 Annealed — about 15% more. Tensile strength is 620 MPa (89.9 ksi) vs 550 MPa (79.8 ksi).

Which condition does FabDigit quote by default, Annealed or Normalized?

HR is the default 1146 condition in the FabDigit quote flow (neither Annealed nor Normalized). 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 1146 Annealed over 1146 Normalized?

Pick 1146 Annealed when the part is bent, formed or impact-loaded. Pick 1146 Normalized when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1146 Annealed and 1146 Normalized 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.