Stainless Steel 422 Hot Rolled vs 422 N&T
Stainless Steel · 422 temper comparison
422 Hot Rolled and 422 N&T are two conditions of the same stainless steel grade, 422: Hot Rolled versus N&T (normalized and tempered). The chemistry is identical, so every difference below comes from the condition. 422 Hot Rolled is the stronger of the two: yield strength 900 MPa (131 ksi) against 790 MPa (115 ksi) for 422 N&T, about 14% more; tensile strength follows at 1,150 MPa (167 ksi) vs 960 MPa (139 ksi). In exchange, 422 N&T is the more ductile: elongation 17% versus 12% for 422 Hot Rolled, and 422 Hot Rolled is harder (350 HB vs 300 HB). 422 N&T runs hotter in service (620°C vs 450°C continuous). On the shop floor, 422 N&T welds better (28 vs 15 out of 100).
422 Hot RolledChoose it when strength drives the design.
422 N&TChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
422 Hot Rolled vs 422 N&T: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all stainless 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 stainless 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
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 83 GPa12 Msi · Bulk Modulus 162 GPa23.5 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.8 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,510°C2,750 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.2 µm/m·K6.2 µin/in·°F · Min Service Temperature -30°C-22 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.3 V
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 40 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 3.5 kg CO₂/kg · Embodied Water 120 L/kg14.4 gal/lb · Typical Recycled Content 40%
Strength versus weight
Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
422 Hot Rolled vs 422 N&T — frequently asked
Is 422 Hot Rolled stronger than 422 N&T?
Yes. 422 Hot Rolled has a typical yield strength of 900 MPa (131 ksi) against 790 MPa (115 ksi) for 422 N&T — about 14% more. Tensile strength is 1,150 MPa (167 ksi) vs 960 MPa (139 ksi).
Which condition does FabDigit quote by default, Hot Rolled or N&T?
Hardened & Tempered is the default 422 condition in the FabDigit quote flow (neither Hot Rolled nor N&T). 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, 422 Hot Rolled or 422 N&T?
422 N&T. Its machinability rates fair (35/100) against poor (26/100) for 422 Hot Rolled; for welding the order is 422 N&T first (poor, 28/100) then 422 Hot Rolled (poor, 15/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 422 Hot Rolled and 422 N&T 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.