Steel SCM422 Cold Drawn vs SCM422 Hot Rolled
Steel · SCM422 temper comparison
SCM422 Cold Drawn and SCM422 Hot Rolled are two conditions of the same steel grade, SCM422: Cold Drawn versus Hot Rolled. The chemistry is identical, so every difference below comes from the condition. SCM422 Cold Drawn is the stronger of the two: yield strength 600 MPa (87 ksi) against 420 MPa (60.9 ksi) for SCM422 Hot Rolled, about 43% more; tensile strength follows at 730 MPa (106 ksi) vs 660 MPa (95.7 ksi). In exchange, SCM422 Hot Rolled is the more ductile: elongation 20% versus 12% for SCM422 Cold Drawn, and SCM422 Cold Drawn is harder (215 HB vs 195 HB). SCM422 Hot Rolled runs hotter in service (350°C vs 300°C continuous). On the shop floor, SCM422 Cold Drawn machines more easily (good vs fair).
SCM422 Cold DrawnChoose it when strength drives the design, or when the part is machined in volume.
SCM422 Hot RolledChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
SCM422 Cold Drawn vs SCM422 Hot Rolled: 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.
SCM422 Cold DrawnSCM422 Hot Rolled
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
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.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 42 W/m·K24.3 BTU/hr·ft·°F · Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.2 µm/m·K6.8 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 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) -0.6 V · Corrosion Resistance 10 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 55 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 34 MJ/kg14,617 BTU/lb · Embodied Carbon (primary production) 2.3 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.
SCM422 Cold Drawn vs SCM422 Hot Rolled — frequently asked
Is SCM422 Cold Drawn stronger than SCM422 Hot Rolled?
Yes. SCM422 Cold Drawn has a typical yield strength of 600 MPa (87 ksi) against 420 MPa (60.9 ksi) for SCM422 Hot Rolled — about 43% more. Tensile strength is 730 MPa (106 ksi) vs 660 MPa (95.7 ksi).
Which condition does FabDigit quote by default, Cold Drawn or Hot Rolled?
Annealed is the default SCM422 condition in the FabDigit quote flow (neither Cold Drawn nor Hot Rolled). 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, SCM422 Cold Drawn or SCM422 Hot Rolled?
SCM422 Cold Drawn. Its machinability rates good (64/100) against fair (54/100) for SCM422 Hot Rolled.
Ready to make it?
Upload a CAD file and FabDigit prices the part in SCM422 Cold Drawn and SCM422 Hot Rolled 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.