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SAE-AISI M48 Steel vs. S32808 Stainless Steel

Both SAE-AISI M48 steel and S32808 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M48 steel and the bottom bar is S32808 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 890 to 2390
780

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1670
1470
Melting Onset (Solidus), °C 1620
1420
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 48
24
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 13
4.0
Embodied Energy, MJ/kg 190
57
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 37
40
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 28 to 76
27
Strength to Weight: Bending, points 23 to 45
24
Thermal Shock Resistance, points 26 to 71
21

Alloy Composition

Carbon (C), % 1.4 to 1.5
0 to 0.030
Chromium (Cr), % 3.5 to 4.0
27 to 27.9
Cobalt (Co), % 8.0 to 10
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 63.8 to 69.8
58.1 to 62.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.1
Molybdenum (Mo), % 4.8 to 5.5
0.8 to 1.2
Nickel (Ni), % 0 to 0.3
7.0 to 8.2
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 9.5 to 10.5
2.1 to 2.5
Vanadium (V), % 2.8 to 3.3
0