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SAE-AISI M6 Steel vs. EN 1.4874 Stainless Steel

Both SAE-AISI M6 steel and EN 1.4874 stainless steel are iron alloys. They have 53% 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 M6 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 840 to 2210
480

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1560
1450
Melting Onset (Solidus), °C 1510
1400
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 39
70
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 8.0
7.6
Embodied Energy, MJ/kg 120
110
Embodied Water, L/kg 160
290

Common Calculations

PREN (Pitting Resistance) 28
34
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 28 to 73
16
Strength to Weight: Bending, points 24 to 45
16
Thermal Diffusivity, mm2/s 4.7
3.3
Thermal Shock Resistance, points 26 to 68
11

Alloy Composition

Carbon (C), % 0.75 to 0.85
0.35 to 0.65
Chromium (Cr), % 3.8 to 4.5
19 to 22
Cobalt (Co), % 11 to 13
18.5 to 22
Iron (Fe), % 68.8 to 74.6
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
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), % 3.8 to 4.8
2.0 to 3.0
Vanadium (V), % 1.3 to 1.7
0