Steel 2083 Prehard vs 2083 Q&T
Steel · 2083 temper comparison
2083 Prehard and 2083 Q&T are two conditions of the same steel grade, 2083: Prehard (pre-hardened) versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. 2083 Q&T is the stronger of the two: yield strength 1,450 MPa (210 ksi) against 850 MPa (123 ksi) for 2083 Prehard, about 71% more; tensile strength follows at 1,700 MPa (247 ksi) vs 1,000 MPa (145 ksi). In exchange, 2083 Prehard is the more ductile: elongation 12% versus 4% for 2083 Q&T, and 2083 Prehard is harder (300 HB vs 230 HB). 2083 Prehard runs hotter in service (450°C vs 250°C continuous). On the shop floor, 2083 Prehard machines more easily (poor vs not recommended).
2083 PrehardChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
2083 Q&TChoose it when strength drives the design.
2083 Prehard vs 2083 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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 215 GPa31.2 Msi · Shear Modulus 82 GPa11.9 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.28 · Reduction in Area 40% · Shear Strength 460 MPa66.7 ksi
Physical
Density and transition temperatures.
Same in both: Density 7.7 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,450°C2,642 °F · Liquidus Temperature 1,510°C2,750 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 25 W/m·K14.4 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.6 µm/m·K5.9 µin/in·°F · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 5.5×10⁻⁷ Ω·m21.7 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Polishability
Same in both: Weldability 25 / 100 · Formability (cold) 20 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 36 MJ/kg15,477 BTU/lb · Embodied Carbon (primary production) 2.9 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 40%
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.
2083 Prehard vs 2083 Q&T — frequently asked
Is 2083 Q&T stronger than 2083 Prehard?
Yes. 2083 Q&T has a typical yield strength of 1,450 MPa (210 ksi) against 850 MPa (123 ksi) for 2083 Prehard — about 71% more. Tensile strength is 1,700 MPa (247 ksi) vs 1,000 MPa (145 ksi).
Which condition does FabDigit quote by default, Prehard or Q&T?
Annealed is the default 2083 condition in the FabDigit quote flow (neither Prehard 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, 2083 Prehard or 2083 Q&T?
2083 Prehard. Its machinability rates poor (32/100) against not recommended (12/100) for 2083 Q&T.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 2083 Prehard and 2083 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.