Steel DC53 Nitrided vs DC53 Q&T
Steel · DC53 temper comparison
DC53 Nitrided and DC53 Q&T are two conditions of the same steel grade, DC53: Nitrided versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. Both yield at about 1,900 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (Nitrided versus quenched and tempered). DC53 Nitrided is harder — 1,100 HV against 740 HV for DC53 Q&T — which matters for wear surfaces and threads. DC53 Nitrided runs hotter in service (450°C vs 200°C continuous) and DC53 Q&T conducts electricity better (2.9 % IACS vs 2.5 % IACS). On the shop floor, DC53 Q&T welds better (poor vs not recommended) and DC53 Q&T forms better (poor vs not recommended).
DC53 NitridedChoose it when surface hardness matters, or when the part sees heat.
DC53 Q&TChoose it when it will be welded.
DC53 Nitrided vs DC53 Q&T: 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.
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 215 GPa31.2 Msi · Shear Modulus 84 GPa12.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Tensile Strength (Ultimate) 2,100 MPa305 ksi · Yield Strength (0.2% offset) 1,900 MPa276 ksi · Elongation at Break 1% · Hardness, Brinell 230 HB · Hardness, Rockwell B 98 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.87 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,350°C2,462 °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) 11.8 µm/m·K6.6 µin/in·°F · Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
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: Polishability 78 / 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 35%
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.
DC53 Nitrided vs DC53 Q&T — frequently asked
What is the difference between DC53 Nitrided and DC53 Q&T?
DC53 Nitrided and DC53 Q&T are two conditions of the same steel grade, DC53: Nitrided versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. Both yield at about 1,900 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (Nitrided versus quenched and tempered).
Which condition does FabDigit quote by default, Nitrided or Q&T?
Annealed is the default DC53 condition in the FabDigit quote flow (neither Nitrided nor Q&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, DC53 Nitrided or DC53 Q&T?
DC53 Q&T, by a small margin. Both rate not recommended for machinability — 8/100 against 3/100 for DC53 Nitrided; for welding the order is DC53 Q&T first (poor, 20/100) then DC53 Nitrided (not recommended, 3/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in DC53 Nitrided and DC53 Q&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.