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SAE-AISI M47 Steel vs. S66286 Stainless Steel

Both SAE-AISI M47 steel and S66286 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 22 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 SAE-AISI M47 steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
620 to 1020

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1540
1430
Melting Onset (Solidus), °C 1500
1370
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 26
26
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 7.4
6.0
Embodied Energy, MJ/kg 100
87
Embodied Water, L/kg 120
170

Common Calculations

PREN (Pitting Resistance) 38
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 79
22 to 36
Strength to Weight: Bending, points 24 to 48
20 to 28
Thermal Diffusivity, mm2/s 6.3
4.0
Thermal Shock Resistance, points 27 to 77
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 1.1 to 1.2
0 to 0.080
Chromium (Cr), % 3.5 to 4.0
13.5 to 16
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.7 to 85
49.1 to 59.5
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 9.3 to 10
1.0 to 1.5
Nickel (Ni), % 0 to 0.3
24 to 27
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Tungsten (W), % 1.3 to 1.8
0
Vanadium (V), % 1.2 to 1.4
0.1 to 0.5

Comparable Variants