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SAE-AISI M46 Steel vs. EN 1.4424 Stainless Steel

Both SAE-AISI M46 steel and EN 1.4424 stainless steel are iron alloys. They have 78% 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 SAE-AISI M46 steel and the bottom bar is EN 1.4424 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
78
Tensile Strength: Ultimate (UTS), MPa 800 to 2300
800

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1540
1430
Melting Onset (Solidus), °C 1500
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 18
13
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 33
15
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 12
3.4
Embodied Energy, MJ/kg 180
46
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 35
29
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 78
29
Strength to Weight: Bending, points 24 to 48
25
Thermal Diffusivity, mm2/s 4.9
3.5
Thermal Shock Resistance, points 25 to 71
23

Alloy Composition

Carbon (C), % 1.2 to 1.3
0 to 0.030
Chromium (Cr), % 3.7 to 4.2
18 to 19
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70 to 73.8
68.6 to 72.4
Manganese (Mn), % 0.2 to 0.4
1.2 to 2.0
Molybdenum (Mo), % 8.0 to 8.5
2.5 to 3.0
Nickel (Ni), % 0 to 0.3
4.5 to 5.2
Nitrogen (N), % 0
0.050 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.4 to 0.65
1.4 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 1.9 to 2.2
0
Vanadium (V), % 3.0 to 3.3
0