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S31655 Stainless Steel vs. SAE-AISI H22 Steel

Both S31655 stainless steel and SAE-AISI H22 steel are iron alloys. They have 71% 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 S31655 stainless steel and the bottom bar is SAE-AISI H22 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 78
77
Tensile Strength: Ultimate (UTS), MPa 710
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1430
1670
Melting Onset (Solidus), °C 1380
1620
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
31
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
28
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.3
4.9
Embodied Energy, MJ/kg 46
73
Embodied Water, L/kg 160
72

Common Calculations

PREN (Pitting Resistance) 27
21
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 25
22 to 61
Strength to Weight: Bending, points 23
20 to 39
Thermal Diffusivity, mm2/s 4.0
8.2
Thermal Shock Resistance, points 16
22 to 60

Alloy Composition

Carbon (C), % 0 to 0.030
0.3 to 0.4
Chromium (Cr), % 19.5 to 21.5
1.8 to 3.8
Copper (Cu), % 0 to 1.0
0 to 0.25
Iron (Fe), % 63.2 to 71.9
82.2 to 87.4
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0.5 to 1.5
0
Nickel (Ni), % 8.0 to 9.5
0 to 0.3
Nitrogen (N), % 0.14 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
10 to 11.8
Vanadium (V), % 0
0.25 to 0.5