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SAE-AISI M2 Steel vs. EN 1.4874 Stainless Steel

Both SAE-AISI M2 steel and EN 1.4874 stainless steel are iron alloys. They have 42% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
480

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1570
1400
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 22
13
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 24
70
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 8.8
7.6
Embodied Energy, MJ/kg 130
110
Embodied Water, L/kg 98
290

Common Calculations

PREN (Pitting Resistance) 31
34
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 25 to 71
16
Strength to Weight: Bending, points 22 to 44
16
Thermal Diffusivity, mm2/s 5.9
3.3
Thermal Shock Resistance, points 27 to 76
11

Alloy Composition

Carbon (C), % 0.78 to 1.1
0.35 to 0.65
Chromium (Cr), % 3.8 to 4.5
19 to 22
Cobalt (Co), % 0
18.5 to 22
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
23 to 38.9
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 4.5 to 5.5
2.5 to 3.0
Nickel (Ni), % 0 to 0.3
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
2.0 to 3.0
Vanadium (V), % 1.8 to 2.2
0