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S33550 Stainless Steel vs. SAE-AISI S1 Steel

Both S33550 stainless steel and SAE-AISI S1 steel are iron alloys. They have 56% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S33550 stainless steel and the bottom bar is SAE-AISI S1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 680
690 to 1840

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1400
1500
Melting Onset (Solidus), °C 1360
1450
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
41
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 24
8.0
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 4.3
2.6
Embodied Energy, MJ/kg 61
37
Embodied Water, L/kg 190
56

Common Calculations

PREN (Pitting Resistance) 30
5.9
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
24 to 64
Strength to Weight: Bending, points 22
22 to 42
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 15
21 to 56

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.4 to 0.55
Cerium (Ce), % 0.025 to 0.070
0
Chromium (Cr), % 25 to 28
1.0 to 1.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 48.8 to 58.2
91.6 to 96.7
Lanthanum (La), % 0.025 to 0.070
0
Manganese (Mn), % 0 to 1.5
0.1 to 0.4
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 16.5 to 20
0 to 0.3
Niobium (Nb), % 0.050 to 0.15
0
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.5 to 3.0
Vanadium (V), % 0
0.15 to 0.3