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SAE-AISI M33 Steel vs. EN 1.4501 Stainless Steel

Both SAE-AISI M33 steel and EN 1.4501 stainless steel are iron alloys. They have 71% 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 M33 steel and the bottom bar is EN 1.4501 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 810 to 2210
830

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1550
1460
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 32
22
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 7.7
4.1
Embodied Energy, MJ/kg 110
57
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 38
42
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 75
29
Strength to Weight: Bending, points 24 to 46
25
Thermal Diffusivity, mm2/s 5.5
4.0
Thermal Shock Resistance, points 25 to 68
22

Alloy Composition

Carbon (C), % 0.85 to 0.92
0 to 0.030
Chromium (Cr), % 3.5 to 4.0
24 to 26
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0.5 to 1.0
Iron (Fe), % 71.4 to 76.3
57.6 to 65.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 9.0 to 10
3.0 to 4.0
Nickel (Ni), % 0 to 0.3
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.15 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 1.3 to 2.1
0.5 to 1.0
Vanadium (V), % 1.0 to 1.4
0