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AISI 301L Stainless Steel vs. SAE-AISI M50 Steel

Both AISI 301L stainless steel and SAE-AISI M50 steel are iron alloys. They have 79% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI 301L stainless steel and the bottom bar is SAE-AISI M50 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 77
75
Tensile Strength: Ultimate (UTS), MPa 620 to 1040
720 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1430
1480
Melting Onset (Solidus), °C 1390
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
35
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
10

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.7
5.1
Embodied Energy, MJ/kg 39
74
Embodied Water, L/kg 130
83

Common Calculations

PREN (Pitting Resistance) 19
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22 to 37
26 to 80
Strength to Weight: Bending, points 21 to 29
23 to 49
Thermal Diffusivity, mm2/s 4.1
9.7
Thermal Shock Resistance, points 14 to 24
21 to 66

Alloy Composition

Carbon (C), % 0 to 0.030
0.78 to 0.88
Chromium (Cr), % 16 to 18
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 70.7 to 78
87 to 90.4
Manganese (Mn), % 0 to 2.0
0.15 to 0.45
Molybdenum (Mo), % 0
3.9 to 4.8
Nickel (Ni), % 6.0 to 8.0
0 to 0.3
Nitrogen (N), % 0 to 0.2
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
Vanadium (V), % 0
0.8 to 1.3

Comparable Variants