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EN 1.4988 Stainless Steel vs. SAE-AISI H24 Steel

Both EN 1.4988 stainless steel and SAE-AISI H24 steel are iron alloys. They have 70% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4988 stainless 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 77
78
Tensile Strength: Ultimate (UTS), MPa 640
720 to 1990

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 470
420
Thermal Conductivity, W/m-K 15
27
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 23
37
Density, g/cm3 7.9
9.1
Embodied Carbon, kg CO2/kg material 6.0
6.1
Embodied Energy, MJ/kg 89
93
Embodied Water, L/kg 150
78

Common Calculations

PREN (Pitting Resistance) 22
28
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 23
22 to 61
Strength to Weight: Bending, points 21
20 to 39
Thermal Diffusivity, mm2/s 4.0
6.9
Thermal Shock Resistance, points 14
22 to 61

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.42 to 0.53
Chromium (Cr), % 15.5 to 17.5
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 69.5
78 to 82.4
Manganese (Mn), % 0 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 1.1 to 1.5
0
Nickel (Ni), % 12.5 to 14.5
0 to 0.3
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.3 to 0.6
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0.6 to 0.85
0.4 to 0.6