Steel 1.2344 Q&T vs 1.2344 Q&T 44-46 HRC
Steel · 1.2344 temper comparison
1.2344 Q&T and 1.2344 Q&T 44-46 HRC are two conditions of the same steel grade, 1.2344: Q&T (quenched and tempered) versus Q&T 44-46 HRC (high-temper, maximum-toughness condition). The chemistry is identical, so every difference below comes from the condition. 1.2344 Q&T is the stronger of the two: yield strength 1,450 MPa (210 ksi) against 1,250 MPa (181 ksi) for 1.2344 Q&T 44-46 HRC, about 16% more; tensile strength follows at 1,700 MPa (247 ksi) vs 1,500 MPa (218 ksi). In exchange, 1.2344 Q&T 44-46 HRC is the more ductile: elongation 12% versus 10% for 1.2344 Q&T, and 1.2344 Q&T is harder (500 HV vs 450 HV).
1.2344 Q&TChoose it when strength drives the design.
1.2344 Q&T 44-46 HRCChoose it when the part is bent, formed or impact-loaded.
1.2344 Q&T vs 1.2344 Q&T 44-46 HRC: 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.
1.2344 Q&T1.2344 Q&T 44-46 HRC
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)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3 · Hardness, Brinell 215 HB · Hardness, Rockwell B 96 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.8 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,427°C2,601 °F · Liquidus Temperature 1,482°C2,700 °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) 11.5 µm/m·K6.4 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 3.3 % IACS · Electrical Resistivity 5.2×10⁻⁷ Ω·m20.5 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.58 V · Corrosion Resistance 20 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Same in both: Weldability 35 / 100 · Formability (cold) 20 / 100 · Brazeability / Solderability 30 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 36 MJ/kg15,477 BTU/lb · Embodied Carbon (primary production) 2.7 kg CO₂/kg · Embodied Water 70 L/kg8.4 gal/lb · Typical Recycled Content 60%
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.
1.2344 Q&T vs 1.2344 Q&T 44-46 HRC — frequently asked
Is 1.2344 Q&T stronger than 1.2344 Q&T 44-46 HRC?
Yes. 1.2344 Q&T has a typical yield strength of 1,450 MPa (210 ksi) against 1,250 MPa (181 ksi) for 1.2344 Q&T 44-46 HRC — about 16% more. Tensile strength is 1,700 MPa (247 ksi) vs 1,500 MPa (218 ksi).
Which condition does FabDigit quote by default, Q&T or Q&T 44-46 HRC?
Annealed is the default 1.2344 condition in the FabDigit quote flow (neither Q&T nor Q&T 44-46 HRC). 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, 1.2344 Q&T or 1.2344 Q&T 44-46 HRC?
1.2344 Q&T 44-46 HRC, by a small margin. Both rate poor for machinability — 25/100 against 20/100 for 1.2344 Q&T.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.2344 Q&T and 1.2344 Q&T 44-46 HRC 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.