Steel SCr415-CD vs SCr415-N
Steel · SCr415 temper comparison
SCr415-CD and SCr415-N are two conditions of the same steel grade, SCr415: CD (cold drawn) versus N (normalized). The chemistry is identical, so every difference below comes from the condition. SCr415-CD is the stronger of the two: yield strength 580 MPa (84.1 ksi) against 420 MPa (60.9 ksi) for SCr415-N, about 38% more; tensile strength follows at 710 MPa (103 ksi) vs 620 MPa (89.9 ksi). In exchange, SCr415-N is the more ductile: elongation 23% versus 12% for SCr415-CD, and SCr415-CD is harder (210 HB vs 180 HB). On the shop floor, SCr415-CD machines more easily (68 vs 57 out of 100).
SCr415-CDChoose it when strength drives the design, or when the part is machined in volume.
SCr415-NChoose it when the part is bent, formed or impact-loaded.
SCr415-CD vs SCr415-N: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 206 GPa29.9 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) 1,425°C2,597 °F · Liquidus Temperature 1,500°C2,732 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 44 W/m·K25.4 BTU/hr·ft·°F · Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.9 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 260 J/g112 BTU/lb · Max Service Temperature (continuous) 350°C662 °F · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 7.8 % IACS · Electrical Resistivity 2.2×10⁻⁷ Ω·m8.66 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.62 V · Corrosion Resistance 12 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 60 / 100 · Brazeability / Solderability 65 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 27 MJ/kg11,608 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 45 L/kg5.4 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.
SCr415-CD vs SCr415-N — frequently asked
Is SCr415-CD stronger than SCr415-N?
Yes. SCr415-CD has a typical yield strength of 580 MPa (84.1 ksi) against 420 MPa (60.9 ksi) for SCr415-N — about 38% more. Tensile strength is 710 MPa (103 ksi) vs 620 MPa (89.9 ksi).
Which condition does FabDigit quote by default, CD or N?
A is the default SCr415 condition in the FabDigit quote flow (neither CD 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, SCr415-CD or SCr415-N?
SCr415-CD, by a small margin. Both rate good for machinability — 68/100 against 57/100 for SCr415-N.
Ready to make it?
Upload a CAD file and FabDigit prices the part in SCr415-CD and SCr415-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.