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S21800 Stainless Steel vs. SAE-AISI M52 Steel

Both S21800 stainless steel and SAE-AISI M52 steel are iron alloys. They have 67% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is SAE-AISI M52 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 740
710 to 2280

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Melting Completion (Liquidus), °C 1360
1510
Melting Onset (Solidus), °C 1310
1470
Specific Heat Capacity, J/kg-K 500
460
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.1
7.5
Embodied Energy, MJ/kg 45
110
Embodied Water, L/kg 150
89

Common Calculations

PREN (Pitting Resistance) 19
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 27
25 to 80
Strength to Weight: Bending, points 24
22 to 49
Thermal Shock Resistance, points 17
21 to 67

Alloy Composition

Carbon (C), % 0 to 0.1
0.85 to 1.0
Chromium (Cr), % 16 to 18
3.5 to 4.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.1 to 65.4
84.4 to 88.9
Manganese (Mn), % 7.0 to 9.0
0.15 to 0.45
Molybdenum (Mo), % 0
4.0 to 4.9
Nickel (Ni), % 8.0 to 9.0
0 to 0.3
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 3.5 to 4.5
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