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SAE-AISI M3 Class 2 Steel vs. EN 1.4807 Stainless Steel

Both SAE-AISI M3 class 2 steel and EN 1.4807 stainless steel are iron alloys. They have 47% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 1.4807 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 770 to 2210
480

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1620
1390
Melting Onset (Solidus), °C 1570
1350
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 26
12
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 25
39
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 12
6.8
Embodied Energy, MJ/kg 180
97
Embodied Water, L/kg 110
190

Common Calculations

PREN (Pitting Resistance) 33
19
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 74
17
Strength to Weight: Bending, points 22 to 45
17
Thermal Diffusivity, mm2/s 7.2
3.2
Thermal Shock Resistance, points 24 to 69
12

Alloy Composition

Carbon (C), % 1.2 to 1.3
0.3 to 0.5
Chromium (Cr), % 3.8 to 4.5
17 to 20
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.8 to 82.3
36.6 to 46.7
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 4.8 to 6.5
0 to 0.5
Nickel (Ni), % 0 to 0.3
34 to 36
Niobium (Nb), % 0
1.0 to 1.8
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.8 to 3.8
0