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S33550 Stainless Steel vs. SAE-AISI M47 Steel

Both S33550 stainless steel and SAE-AISI M47 steel are iron alloys. They have 58% 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 S33550 stainless steel and the bottom bar is SAE-AISI M47 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 680
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1400
1540
Melting Onset (Solidus), °C 1360
1500
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
23
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
26
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 4.3
7.4
Embodied Energy, MJ/kg 61
100
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 30
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
28 to 79
Strength to Weight: Bending, points 22
24 to 48
Thermal Diffusivity, mm2/s 3.9
6.3
Thermal Shock Resistance, points 15
27 to 77

Alloy Composition

Carbon (C), % 0.040 to 0.1
1.1 to 1.2
Cerium (Ce), % 0.025 to 0.070
0
Chromium (Cr), % 25 to 28
3.5 to 4.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 48.8 to 58.2
78.7 to 85
Lanthanum (La), % 0.025 to 0.070
0
Manganese (Mn), % 0 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 0
9.3 to 10
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
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
1.2 to 1.4