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SAE-AISI H22 Steel vs. S32550 Stainless Steel

Both SAE-AISI H22 steel and S32550 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 (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H22 steel and the bottom bar is S32550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
860

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1670
1440
Melting Onset (Solidus), °C 1620
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 31
16
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 28
20
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 4.9
3.8
Embodied Energy, MJ/kg 73
53
Embodied Water, L/kg 72
180

Common Calculations

PREN (Pitting Resistance) 21
40
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 22 to 61
31
Strength to Weight: Bending, points 20 to 39
26
Thermal Diffusivity, mm2/s 8.2
4.4
Thermal Shock Resistance, points 22 to 60
23

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.040
Chromium (Cr), % 1.8 to 3.8
24 to 27
Copper (Cu), % 0 to 0.25
1.5 to 2.5
Iron (Fe), % 82.2 to 87.4
57.2 to 67
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 0
2.9 to 3.9
Nickel (Ni), % 0 to 0.3
4.5 to 6.5
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 10 to 11.8
0
Vanadium (V), % 0.25 to 0.5
0