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SAE-AISI M47 Steel vs. S35140 Stainless Steel

Both SAE-AISI M47 steel and S35140 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 S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
690

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1540
1420
Melting Onset (Solidus), °C 1500
1370
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 23
14
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 26
31
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 7.4
5.5
Embodied Energy, MJ/kg 100
78
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 38
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 79
24
Strength to Weight: Bending, points 24 to 48
22
Thermal Diffusivity, mm2/s 6.3
3.7
Thermal Shock Resistance, points 27 to 77
16

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.1
Chromium (Cr), % 3.5 to 4.0
20 to 22
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.7 to 85
44.1 to 52.7
Manganese (Mn), % 0.15 to 0.4
1.0 to 3.0
Molybdenum (Mo), % 9.3 to 10
1.0 to 2.0
Nickel (Ni), % 0 to 0.3
25 to 27
Niobium (Nb), % 0
0.25 to 0.75
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.45
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.3 to 1.8
0
Vanadium (V), % 1.2 to 1.4
0