Steel 1132-IH vs 1132 QT-28-32HRC
Steel · 1132 temper comparison
1132-IH and 1132 QT-28-32HRC are two conditions of the same steel grade, 1132: IH (induction hardened) versus QT-28-32HRC. The chemistry is identical, so every difference below comes from the condition. 1132 QT-28-32HRC is the stronger of the two: yield strength 780 MPa (113 ksi) against 560 MPa (81.2 ksi) for 1132-IH, about 39% more; tensile strength follows at 950 MPa (138 ksi) vs 700 MPa (102 ksi). 1132 QT-28-32HRC is the more ductile: elongation 14% versus 10% for 1132-IH, and 1132-IH is harder (530 HB vs 293 HB). 1132 QT-28-32HRC runs hotter in service (400°C vs 200°C continuous). On the shop floor, 1132 QT-28-32HRC machines more easily (fair vs poor) and 1132 QT-28-32HRC welds better (poor vs not recommended).
1132 QT-28-32HRCChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
1132-IH vs 1132 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
Compressive Strength
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 · Hardness, Rockwell B 89 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 1,490°C2,714 °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 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 9 % IACS
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: Castability 30 / 100 · Brazeability / Solderability 55 / 100 · Polishability 45 / 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 45 L/kg5.4 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.
1132-IH vs 1132 QT-28-32HRC — frequently asked
Is 1132 QT-28-32HRC stronger than 1132-IH?
Yes. 1132 QT-28-32HRC has a typical yield strength of 780 MPa (113 ksi) against 560 MPa (81.2 ksi) for 1132-IH — about 39% more. Tensile strength is 950 MPa (138 ksi) vs 700 MPa (102 ksi).
Which condition does FabDigit quote by default, IH or QT-28-32HRC?
CD is the default 1132 condition in the FabDigit quote flow (neither IH nor QT-28-32HRC). 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, 1132-IH or 1132 QT-28-32HRC?
1132 QT-28-32HRC. Its machinability rates fair (52/100) against poor (25/100) for 1132-IH; for welding the order is 1132 QT-28-32HRC first (poor, 15/100) then 1132-IH (not recommended, 5/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1132-IH and 1132 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.