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Steel 3310 Normalized vs 3310 Spheroidize Annealed

Steel · 3310 temper comparison

3310 Normalized and 3310 Spheroidize Annealed are two conditions of the same steel grade, 3310: Normalized versus Spheroidize Annealed. The chemistry is identical, so every difference below comes from the condition. 3310 Normalized is the stronger of the two: yield strength 560 MPa (81.2 ksi) against 400 MPa (58 ksi) for 3310 Spheroidize Annealed, about 40% more; tensile strength follows at 830 MPa (120 ksi) vs 620 MPa (89.9 ksi). In exchange, 3310 Spheroidize Annealed is the more ductile: elongation 28% versus 20% for 3310 Normalized, and 3310 Normalized is harder (250 HB vs 170 HB). On the shop floor, 3310 Spheroidize Annealed machines more easily (fair vs poor).

3310 NormalizedChoose it when strength drives the design.

3310 Spheroidize AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

3310 Normalized vs 3310 Spheroidize Annealed: properties

3310 Normalized3310 Spheroidize Annealed

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

830 MPa120 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

560 MPa81.2 ksi
400 MPa58 ksi

Elongation at Break

20%
28%

Reduction in Area

55%
62%

Shear Strength

540 MPa78.3 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

375 MPa54.4 ksi
290 MPa42.1 ksi

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
130 J95.9 ft·lbf

Hardness, Brinell

250 HB
170 HB

Hardness, Rockwell B

100 HRB
86 HRB

Same in both: Elastic (Young's) Modulus 205 GPa29.7 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

32 W/m·K18.5 BTU/hr·ft·°F
33 W/m·K19.1 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 460 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 270 J/g116 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -70°C-94 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

3.05×10⁻⁷ Ω·m12 µΩ·in
3×10⁻⁷ Ω·m11.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 15 / 100

Manufacturability

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

Machinability

32 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
50%

Weldability

22 / 100
30 / 100

Formability (cold)

30 / 100
55 / 100

Same in both: Brazeability / Solderability 55 / 100 · Polishability 65 / 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 60 L/kg7.2 gal/lb · Typical Recycled Content 25%

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 scale3310

3310 Normalized vs 3310 Spheroidize Annealed — frequently asked

Is 3310 Normalized stronger than 3310 Spheroidize Annealed?

Yes. 3310 Normalized has a typical yield strength of 560 MPa (81.2 ksi) against 400 MPa (58 ksi) for 3310 Spheroidize Annealed — about 40% more. Tensile strength is 830 MPa (120 ksi) vs 620 MPa (89.9 ksi).

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

Annealed is the default 3310 condition in the FabDigit quote flow (neither Normalized nor Spheroidize Annealed). 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, 3310 Normalized or 3310 Spheroidize Annealed?

3310 Spheroidize Annealed. Its machinability rates fair (45/100) against poor (32/100) for 3310 Normalized; for welding the order is 3310 Spheroidize Annealed first (poor, 30/100) then 3310 Normalized (poor, 22/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 3310 Normalized and 3310 Spheroidize Annealed 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.