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SAE-AISI M33 Steel vs. EN 1.4878 Stainless Steel

Both SAE-AISI M33 steel and EN 1.4878 stainless steel are iron alloys. They have 74% 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 1.4878 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
610

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1550
1430
Melting Onset (Solidus), °C 1500
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 32
16
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.7
3.2
Embodied Energy, MJ/kg 110
46
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 38
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 75
22
Strength to Weight: Bending, points 24 to 46
20
Thermal Diffusivity, mm2/s 5.5
4.0
Thermal Shock Resistance, points 25 to 68
13

Alloy Composition

Carbon (C), % 0.85 to 0.92
0 to 0.1
Chromium (Cr), % 3.5 to 4.0
17 to 19
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.4 to 76.3
65 to 74
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 9.0 to 10
0
Nickel (Ni), % 0 to 0.3
9.0 to 12
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0 to 0.8
Tungsten (W), % 1.3 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0