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Annealed AISI 304L vs. Annealed SAE-AISI H24

Both annealed AISI 304L and annealed SAE-AISI H24 are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is annealed AISI 304L and the bottom bar is annealed SAE-AISI H24.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 540
720

Thermal Properties

Latent Heat of Fusion, J/g 290
240
Melting Completion (Liquidus), °C 1450
1750
Melting Onset (Solidus), °C 1400
1700
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 16
27
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
37
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 3.1
6.1
Embodied Energy, MJ/kg 44
93
Embodied Water, L/kg 150
78

Common Calculations

PREN (Pitting Resistance) 20
28
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 4.2
6.9
Thermal Shock Resistance, points 12
22

Alloy Composition

Carbon (C), % 0 to 0.030
0.42 to 0.53
Chromium (Cr), % 18 to 20
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 65 to 74
78 to 82.4
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Nickel (Ni), % 8.0 to 12
0 to 0.3
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6