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S21900 Stainless Steel vs. SAE-AISI M52 Steel

Both S21900 stainless steel and SAE-AISI M52 steel are iron alloys. They have 68% 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 S21900 stainless steel and the bottom bar is SAE-AISI M52 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 710
710 to 2280

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1400
1510
Melting Onset (Solidus), °C 1350
1470
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 14
31
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
10

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
7.5
Embodied Energy, MJ/kg 43
110
Embodied Water, L/kg 160
89

Common Calculations

PREN (Pitting Resistance) 25
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
25 to 80
Strength to Weight: Bending, points 23
22 to 49
Thermal Diffusivity, mm2/s 3.8
8.4
Thermal Shock Resistance, points 15
21 to 67

Alloy Composition

Carbon (C), % 0 to 0.080
0.85 to 1.0
Chromium (Cr), % 19 to 21.5
3.5 to 4.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.4 to 67.4
84.4 to 88.9
Manganese (Mn), % 8.0 to 10
0.15 to 0.45
Molybdenum (Mo), % 0
4.0 to 4.9
Nickel (Ni), % 5.5 to 7.5
0 to 0.3
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0.75 to 1.5
Vanadium (V), % 0
1.7 to 2.3