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SAE-AISI M52 Steel vs. S44537 Stainless Steel

Both SAE-AISI M52 steel and S44537 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 24 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 M52 steel and the bottom bar is S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 710 to 2280
510

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1510
1480
Melting Onset (Solidus), °C 1470
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 31
21
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
19
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 7.5
3.4
Embodied Energy, MJ/kg 110
50
Embodied Water, L/kg 89
140

Common Calculations

PREN (Pitting Resistance) 20
26
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 80
18
Strength to Weight: Bending, points 22 to 49
18
Thermal Diffusivity, mm2/s 8.4
5.6
Thermal Shock Resistance, points 21 to 67
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.85 to 1.0
0 to 0.030
Chromium (Cr), % 3.5 to 4.3
20 to 24
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 84.4 to 88.9
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0.15 to 0.45
0 to 0.8
Molybdenum (Mo), % 4.0 to 4.9
0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0.2 to 0.6
0.1 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.0060
Titanium (Ti), % 0
0.020 to 0.2
Tungsten (W), % 0.75 to 1.5
1.0 to 3.0
Vanadium (V), % 1.7 to 2.3
0