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SAE-AISI H23 Steel vs. SAE-AISI H24 Steel

Both SAE-AISI H23 steel and SAE-AISI H24 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI H23 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 0.28
0.29
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 260
240
Melting Completion (Liquidus), °C 1680
1750
Melting Onset (Solidus), °C 1630
1700
Specific Heat Capacity, J/kg-K 440
420
Thermal Conductivity, W/m-K 20
27
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 34
37
Density, g/cm3 8.7
9.1
Embodied Carbon, kg CO2/kg material 6.9
6.1
Embodied Energy, MJ/kg 110
93
Embodied Water, L/kg 120
78

Common Calculations

PREN (Pitting Resistance) 32
28
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 22
22
Strength to Weight: Axial, points 24 to 49
22 to 61
Strength to Weight: Bending, points 21 to 34
20 to 39
Thermal Diffusivity, mm2/s 5.2
6.9
Thermal Shock Resistance, points 23 to 47
22 to 61

Alloy Composition

Carbon (C), % 0.25 to 0.35
0.42 to 0.53
Chromium (Cr), % 11 to 12.8
2.5 to 3.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 71.3 to 76.7
78 to 82.4
Manganese (Mn), % 0.15 to 0.4
0.15 to 0.4
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.6
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 11 to 12.8
14 to 16
Vanadium (V), % 0.75 to 1.3
0.4 to 0.6

Comparable Variants