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SAE-AISI M47 Steel vs. S32654 Stainless Steel

Both SAE-AISI M47 steel and S32654 stainless steel are iron alloys. They have 54% 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 M47 steel and the bottom bar is S32654 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
82
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
850

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1540
1450
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 23
11
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Base Metal Price, % relative 26
34
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 7.4
6.4
Embodied Energy, MJ/kg 100
87
Embodied Water, L/kg 120
220

Common Calculations

PREN (Pitting Resistance) 38
57
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
29
Strength to Weight: Bending, points 24 to 48
25
Thermal Diffusivity, mm2/s 6.3
2.9
Thermal Shock Resistance, points 27 to 77
19

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.020
Chromium (Cr), % 3.5 to 4.0
24 to 25
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0.3 to 0.6
Iron (Fe), % 78.7 to 85
38.3 to 45.3
Manganese (Mn), % 0.15 to 0.4
2.0 to 4.0
Molybdenum (Mo), % 9.3 to 10
7.0 to 8.0
Nickel (Ni), % 0 to 0.3
21 to 23
Nitrogen (N), % 0
0.45 to 0.55
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050
Tungsten (W), % 1.3 to 1.8
0
Vanadium (V), % 1.2 to 1.4
0