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SAE-AISI M33 Steel vs. EN 1.4423 Stainless Steel

Both SAE-AISI M33 steel and EN 1.4423 stainless steel are iron alloys. They have 81% 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 M33 steel and the bottom bar is EN 1.4423 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 78
77
Tensile Strength: Ultimate (UTS), MPa 810 to 2210
850

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1550
1460
Melting Onset (Solidus), °C 1500
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
16
Thermal Expansion, µm/m-K 12
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 32
14
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 7.7
3.2
Embodied Energy, MJ/kg 110
43
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 38
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 75
30
Strength to Weight: Bending, points 24 to 46
25
Thermal Diffusivity, mm2/s 5.5
4.3
Thermal Shock Resistance, points 25 to 68
31

Alloy Composition

Carbon (C), % 0.85 to 0.92
0 to 0.020
Chromium (Cr), % 3.5 to 4.0
11 to 13
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0.2 to 0.8
Iron (Fe), % 71.4 to 76.3
73.8 to 80.5
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 9.0 to 10
2.3 to 2.8
Nickel (Ni), % 0 to 0.3
6.0 to 7.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0030
Tungsten (W), % 1.3 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0