Steel 1044-HR vs 1044 QT-28-32HRC
Steel · 1044 temper comparison
1044-HR and 1044 QT-28-32HRC are two conditions of the same steel grade, 1044: HR (hot rolled) versus QT-28-32HRC (quenched & Tempered to 28–32 HRC). The chemistry is identical, so every difference below comes from the condition. 1044 QT-28-32HRC is the stronger of the two: yield strength 825 MPa (120 ksi) against 310 MPa (45 ksi) for 1044-HR, about 166% more; tensile strength follows at 965 MPa (140 ksi) vs 570 MPa (82.7 ksi). 1044 QT-28-32HRC is harder — 293 HB against 170 HB for 1044-HR — which matters for wear surfaces and threads. On the shop floor, 1044-HR machines more easily (good vs fair), 1044-HR welds better (good vs fair), and 1044-HR forms better (fair vs poor).
1044-HRChoose it when the part is machined in volume, or when it will be welded.
1044 QT-28-32HRCChoose it when strength drives the design, or when surface hardness matters.
1044-HR vs 1044 QT-28-32HRC: 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
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Compressive Strength 310 MPa45 ksi · Hardness, Rockwell B 87 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,495°C2,723 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 49 W/m·K28.3 BTU/hr·ft·°F · Specific Heat Capacity 486 J/kg·K0.12 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 · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 10.6 % IACS · Electrical Resistivity 1.62×10⁻⁷ Ω·m6.38 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.61 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 65 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 1.9 kg CO₂/kg · Embodied Water 40 L/kg4.8 gal/lb · Typical Recycled Content 30%
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.
1044-HR vs 1044 QT-28-32HRC — frequently asked
Is 1044 QT-28-32HRC stronger than 1044-HR?
Yes. 1044 QT-28-32HRC has a typical yield strength of 825 MPa (120 ksi) against 310 MPa (45 ksi) for 1044-HR — about 166% more. Tensile strength is 965 MPa (140 ksi) vs 570 MPa (82.7 ksi).
Which condition does FabDigit quote by default, HR or QT-28-32HRC?
HR is the default 1044 condition in the FabDigit quote flow. 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, 1044-HR or 1044 QT-28-32HRC?
1044-HR. Its machinability rates good (55/100) against fair (45/100) for 1044 QT-28-32HRC; for welding the order is 1044-HR first (good, 55/100) then 1044 QT-28-32HRC (fair, 35/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1044-HR and 1044 QT-28-32HRC 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.