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SAE-AISI H23 Steel vs. S33550 Stainless Steel

Both SAE-AISI H23 steel and S33550 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H23 steel and the bottom bar is S33550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
680

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1680
1400
Melting Onset (Solidus), °C 1630
1360
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
24
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 6.9
4.3
Embodied Energy, MJ/kg 110
61
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 32
30
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 49
24
Strength to Weight: Bending, points 21 to 34
22
Thermal Diffusivity, mm2/s 5.2
3.9
Thermal Shock Resistance, points 23 to 47
15

Alloy Composition

Carbon (C), % 0.25 to 0.35
0.040 to 0.1
Cerium (Ce), % 0
0.025 to 0.070
Chromium (Cr), % 11 to 12.8
25 to 28
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
48.8 to 58.2
Lanthanum (La), % 0
0.025 to 0.070
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Nickel (Ni), % 0 to 0.3
16.5 to 20
Niobium (Nb), % 0
0.050 to 0.15
Nitrogen (N), % 0
0.18 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 11 to 12.8
0
Vanadium (V), % 0.75 to 1.3
0