SAE-AISI H11 Steel vs. SAE-AISI O7 Steel
Both SAE-AISI H11 steel and SAE-AISI O7 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common.
For each property being compared, the top bar is SAE-AISI H11 steel and the bottom bar is SAE-AISI O7 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 74 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 690 to 1840 | |
680 to 2110 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
250 |
Melting Completion (Liquidus), °C | 1460 | |
1480 |
Melting Onset (Solidus), °C | 1410 | |
1430 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 42 | |
41 |
Thermal Expansion, µm/m-K | 12 | |
12 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 8.2 | |
7.6 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 9.5 | |
8.7 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 5.5 | |
6.0 |
Density, g/cm3 | 7.8 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 3.0 | |
2.3 |
Embodied Energy, MJ/kg | 43 | |
33 |
Embodied Water, L/kg | 75 | |
52 |
Common Calculations
PREN (Pitting Resistance) | 9.6 | |
3.6 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 25 to 66 | |
24 to 74 |
Strength to Weight: Bending, points | 22 to 43 | |
22 to 46 |
Thermal Diffusivity, mm2/s | 11 | |
11 |
Thermal Shock Resistance, points | 22 to 58 | |
23 to 70 |
Alloy Composition
Carbon (C), % | 0.33 to 0.43 | |
1.1 to 1.3 |
Chromium (Cr), % | 4.8 to 5.5 | |
0.35 to 0.85 |
Copper (Cu), % | 0 to 0.25 | |
0 to 0.25 |
Iron (Fe), % | 89.6 to 92.5 | |
92.9 to 97.6 |
Manganese (Mn), % | 0.2 to 0.5 | |
0 to 1.0 |
Molybdenum (Mo), % | 1.1 to 1.6 | |
0 to 0.3 |
Nickel (Ni), % | 0 to 0.3 | |
0 to 0.3 |
Phosphorus (P), % | 0 to 0.030 | |
0 to 0.030 |
Silicon (Si), % | 0.8 to 1.2 | |
0 to 0.6 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Tungsten (W), % | 0 | |
1.0 to 2.0 |
Vanadium (V), % | 0.3 to 0.6 | |
0 to 0.4 |