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SAE-AISI M52 Steel vs. S40977 Stainless Steel

Both SAE-AISI M52 steel and S40977 stainless steel are iron alloys. They have a moderately high 91% 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 S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 710 to 2280
510

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1510
1440
Melting Onset (Solidus), °C 1470
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 31
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
6.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
1.9
Embodied Energy, MJ/kg 110
27
Embodied Water, L/kg 89
97

Common Calculations

PREN (Pitting Resistance) 20
12
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
6.7
Thermal Shock Resistance, points 21 to 67
18

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.030
Chromium (Cr), % 3.5 to 4.3
10.5 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 84.4 to 88.9
83.9 to 89.2
Manganese (Mn), % 0.15 to 0.45
0 to 1.5
Molybdenum (Mo), % 4.0 to 4.9
0
Nickel (Ni), % 0 to 0.3
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0.75 to 1.5
0
Vanadium (V), % 1.7 to 2.3
0