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Steel C10E +C vs C10E +N

Steel · C10E temper comparison

C10E +C and C10E +N are two conditions of the same steel grade, C10E: +C (cold drawn) versus +N (normalized). The chemistry is identical, so every difference below comes from the condition. C10E +C is the stronger of the two: yield strength 390 MPa (56.6 ksi) against 250 MPa (36.3 ksi) for C10E +N, about 56% more; tensile strength follows at 490 MPa (71.1 ksi) vs 420 MPa (60.9 ksi). In exchange, C10E +N is the more ductile: elongation 30% versus 14% for C10E +C, and C10E +C is harder (145 HB vs 120 HB).

C10E +CChoose it when strength drives the design.

C10E +NChoose it when the part is bent, formed or impact-loaded.

C10E +C vs C10E +N: properties

C10E +CC10E +N

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

490 MPa71.1 ksi
420 MPa60.9 ksi

Yield Strength (0.2% offset)

390 MPa56.6 ksi
250 MPa36.3 ksi

Elongation at Break

14%
30%

Reduction in Area

45%
60%

Fatigue Strength (Endurance Limit)

220 MPa31.9 ksi
195 MPa28.3 ksi

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
100 J73.8 ft·lbf

Hardness, Brinell

145 HB
120 HB

Hardness, Rockwell B

78 HRB
67 HRB

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Shear Strength 290 MPa42.1 ksi · Hardness, Vickers 126 HV

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,495°C2,723 °F · Liquidus Temperature 1,520°C2,768 °F

Thermal

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

Same in both: Thermal Conductivity 50 W/m·K28.9 BTU/hr·ft·°F · Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 247 J/g106 BTU/lb · Max Service Temperature (continuous) 350°C662 °F · Min Service Temperature -30°C-22 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10.8 % IACS · Electrical Resistivity 1.6×10⁻⁷ Ω·m6.3 µΩ·in

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 Rating (AISI 1212 = 100 %)

60%
55%

Formability (cold)

70 / 100
90 / 100

Same in both: Machinability 52 / 100 · Weldability 95 / 100 · Brazeability / Solderability 80 / 100 · Polishability 50 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2.1 kg CO₂/kg · Embodied Water 40 L/kg4.8 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 scaleC10E

C10E +C vs C10E +N — frequently asked

Is C10E +C stronger than C10E +N?

Yes. C10E +C has a typical yield strength of 390 MPa (56.6 ksi) against 250 MPa (36.3 ksi) for C10E +N — about 56% more. Tensile strength is 490 MPa (71.1 ksi) vs 420 MPa (60.9 ksi).

Which condition does FabDigit quote by default, +C or +N?

+N is the default C10E 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.

When should I choose C10E +C over C10E +N?

Pick C10E +C when strength drives the design. Pick C10E +N when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C10E +C and C10E +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.