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ASTM Grade HE Steel vs. SAE-AISI H24 Steel

Both ASTM grade HE steel and SAE-AISI H24 steel are iron alloys. They have 64% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HE steel and the bottom bar is SAE-AISI H24 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 670
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 310
240
Melting Completion (Liquidus), °C 1400
1750
Melting Onset (Solidus), °C 1360
1700
Specific Heat Capacity, J/kg-K 490
420
Thermal Conductivity, W/m-K 14
27
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
37
Density, g/cm3 7.7
9.1
Embodied Carbon, kg CO2/kg material 3.5
6.1
Embodied Energy, MJ/kg 50
93
Embodied Water, L/kg 190
78

Common Calculations

PREN (Pitting Resistance) 29
28
Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 24
22 to 61
Strength to Weight: Bending, points 22
20 to 39
Thermal Diffusivity, mm2/s 3.6
6.9
Thermal Shock Resistance, points 14
22 to 61

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.42 to 0.53
Chromium (Cr), % 26 to 30
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 53.9 to 65.8
78 to 82.4
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 11
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0.15 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6