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SAE-AISI M47 Steel vs. S82441 Stainless Steel

Both SAE-AISI M47 steel and S82441 stainless steel are iron alloys. They have 73% 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 S82441 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
79
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
760

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1540
1430
Melting Onset (Solidus), °C 1500
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
16
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 7.4
3.2
Embodied Energy, MJ/kg 100
45
Embodied Water, L/kg 120
170

Common Calculations

PREN (Pitting Resistance) 38
33
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
27
Strength to Weight: Bending, points 24 to 48
24
Thermal Diffusivity, mm2/s 6.3
3.9
Thermal Shock Resistance, points 27 to 77
21

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.030
Chromium (Cr), % 3.5 to 4.0
23 to 25
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0.1 to 0.8
Iron (Fe), % 78.7 to 85
62.6 to 70.2
Manganese (Mn), % 0.15 to 0.4
2.5 to 4.0
Molybdenum (Mo), % 9.3 to 10
1.0 to 2.0
Nickel (Ni), % 0 to 0.3
3.0 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 0.7
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