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S33550 Stainless Steel vs. SAE-AISI M2 Steel

Both S33550 stainless steel and SAE-AISI M2 steel are iron alloys. They have 59% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is S33550 stainless steel and the bottom bar is SAE-AISI M2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 680
760 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1400
1610
Melting Onset (Solidus), °C 1360
1570
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
24
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 4.3
8.8
Embodied Energy, MJ/kg 61
130
Embodied Water, L/kg 190
98

Common Calculations

PREN (Pitting Resistance) 30
31
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
25 to 71
Strength to Weight: Bending, points 22
22 to 44
Thermal Diffusivity, mm2/s 3.9
5.9
Thermal Shock Resistance, points 15
27 to 76

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.78 to 1.1
Cerium (Ce), % 0.025 to 0.070
0
Chromium (Cr), % 25 to 28
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 48.8 to 58.2
78.5 to 83.4
Lanthanum (La), % 0.025 to 0.070
0
Manganese (Mn), % 0 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 16.5 to 20
0 to 0.3
Niobium (Nb), % 0.050 to 0.15
0
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2