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SAE-AISI M3 Class 2 Steel vs. EN 1.4520 Stainless Steel

Both SAE-AISI M3 class 2 steel and EN 1.4520 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 2 steel and the bottom bar is EN 1.4520 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 770 to 2210
480

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1620
1440
Melting Onset (Solidus), °C 1570
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 26
20
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 25
8.5
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 12
2.2
Embodied Energy, MJ/kg 180
32
Embodied Water, L/kg 110
120

Common Calculations

PREN (Pitting Resistance) 33
17
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 74
17
Strength to Weight: Bending, points 22 to 45
18
Thermal Diffusivity, mm2/s 7.2
5.4
Thermal Shock Resistance, points 24 to 69
17

Alloy Composition

Carbon (C), % 1.2 to 1.3
0 to 0.025
Chromium (Cr), % 3.8 to 4.5
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.8 to 82.3
80.1 to 83.9
Manganese (Mn), % 0.15 to 0.4
0 to 0.5
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.8
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.8 to 3.8
0